/* ═══════════════════════════════════════════════════════════════════
   TDS Exam Portal — Workspace Architecture (IDE Layout)
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --bg: #000000;
  --bg-sidebar: #050505;
  --bg-surface: #0a0a0a;
  --bg-hover: rgba(255,255,255,0.05);
  --bg-active: rgba(255,255,255,0.08);

  --border: rgba(255,255,255,0.1);
  --border-focus: rgba(255,255,255,0.3);

  --text-primary: #ededed;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;

  --success: #2ecc71;
  --warning: #f1c40f;
  --info: #3498db;
  --error: #e74c3c;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Default Workspace Theme variables (Amber Sunset) */
  --theme-primary: #f59e0b;
  --theme-primary-hover: #fbbf24;
  --theme-secondary: #ef4444;
  --theme-glow: rgba(245, 158, 11, 0.4);
  --theme-glow-intense: rgba(245, 158, 11, 0.75);
}

body[data-theme="cyber"] {
  --theme-primary: #10b981;
  --theme-primary-hover: #34d399;
  --theme-secondary: #3b82f6;
  --theme-glow: rgba(16, 185, 129, 0.4);
  --theme-glow-intense: rgba(16, 185, 129, 0.75);
}

body[data-theme="orchid"] {
  --theme-primary: #ec4899;
  --theme-primary-hover: #f472b6;
  --theme-secondary: #8b5cf6;
  --theme-glow: rgba(236, 72, 153, 0.4);
  --theme-glow-intense: rgba(236, 72, 153, 0.75);
}

body[data-theme="frost"] {
  --theme-primary: #06b6d4;
  --theme-primary-hover: #22d3ee;
  --theme-secondary: #3b82f6;
  --theme-glow: rgba(6, 182, 212, 0.4);
  --theme-glow-intense: rgba(6, 182, 212, 0.75);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  overflow: hidden; /* Stop global scroll, only inner panes scroll */
}

/* ── Neural Network Full-Viewport Canvas ── */
#threeCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  display: block;
  transform: translateZ(0);
  /* Subtle vignette helps UI contrast without hiding the constellation */
  mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 55%, rgba(0,0,0,0.65) 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 55%, rgba(0,0,0,0.65) 100%);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 20;
}
.toast-stack {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  pointer-events: none;
}
.toast {
  min-width: 220px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.96);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.32);
  color: var(--text-primary);
  font-size: 13px;
  transform: translateY(16px);
  opacity: 0;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.toast-visible {
  transform: translateY(0);
  opacity: 1;
}
.toast-success { border-color: rgba(46, 204, 113, 0.35); }
.toast-error { border-color: rgba(231, 76, 60, 0.35); }
.toast-message { line-height: 1.5; }

/* ── Post-solve celebration card (shown once per browser, fully dismissible) ── */
@keyframes celebrate-pop-in {
  0%   { transform: translateY(28px) scale(0.9); opacity: 0; }
  60%  { transform: translateY(-4px) scale(1.02); opacity: 1; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes celebrate-glow {
  0%, 100% { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.02), 0 0 28px rgba(124, 92, 255, 0.25); }
  50%      { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.02), 0 0 44px rgba(88, 166, 255, 0.4); }
}
@keyframes celebrate-shine {
  0%   { background-position: -160% 0; }
  100% { background-position: 260% 0; }
}
@keyframes celebrate-bounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25%      { transform: translateY(-3px) rotate(-6deg); }
  75%      { transform: translateY(-2px) rotate(6deg); }
}
.celebrate-card {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 61;
  width: min(340px, calc(100vw - 32px));
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid rgba(124, 92, 255, 0.4);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(124, 92, 255, 0.22), transparent 55%),
    radial-gradient(120% 140% at 100% 100%, rgba(88, 166, 255, 0.2), transparent 55%),
    linear-gradient(160deg, rgba(17, 20, 34, 0.98), rgba(9, 9, 14, 0.98));
  color: var(--text-primary);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
}
.celebrate-card.celebrate-visible {
  opacity: 1;
  pointer-events: auto;
  animation: celebrate-pop-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards,
             celebrate-glow 2.6s ease-in-out 0.5s infinite;
}
.celebrate-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.12) 45%, transparent 60%);
  background-size: 200% 100%;
  animation: celebrate-shine 3.2s ease-in-out 0.6s infinite;
  pointer-events: none;
}
.celebrate-title {
  font-weight: 800;
  font-size: 15.5px;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(90deg, #a78bfa, #60a5fa 60%, #34d399);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.celebrate-title .celebrate-emoji {
  display: inline-block;
  animation: celebrate-bounce 1.6s ease-in-out infinite;
  filter: none;
  -webkit-text-fill-color: initial;
}
.celebrate-body {
  color: var(--text-secondary, #b7bfcc);
  line-height: 1.55;
  margin-bottom: 14px;
}
.celebrate-inline-link {
  color: #93c5fd;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.celebrate-inline-link:hover { color: #bfdbfe; }
.celebrate-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.celebrate-btn {
  flex: 1 1 auto;
  text-align: center;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  color: #0b0e17;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.celebrate-btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.celebrate-btn:active { transform: translateY(0); }
.celebrate-btn-star {
  background: linear-gradient(120deg, #ffd76a, #ffb74d);
}
.celebrate-btn-follow {
  background: linear-gradient(120deg, #b9c2ff, #8aa4ff);
}
.celebrate-btn-linkedin {
  background: linear-gradient(120deg, #7dd3fc, #60a5fa);
}
.celebrate-dismiss {
  position: absolute;
  top: 9px;
  right: 11px;
  background: none;
  border: none;
  color: var(--text-secondary, #9aa4b2);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  z-index: 1;
}
.celebrate-dismiss:hover { color: var(--text-primary); }

/* ── Hosted-API downtime notice (auto-shown on questions using an affected API host) ── */
.api-status-box {
  margin-bottom: 16px;
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-left: 4px solid #ef4444;
  background: linear-gradient(140deg, rgba(239, 68, 68, 0.1), rgba(120, 30, 30, 0.08));
  color: var(--text-primary);
  font-size: 13px;
}
.api-status-title {
  font-weight: 800;
  font-size: 14px;
  color: #fca5a5;
  margin-bottom: 6px;
}
.api-status-body {
  color: var(--text-secondary, #b7bfcc);
  line-height: 1.6;
}
.api-status-body strong { color: #fca5a5; }
.api-status-note {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

/* ── Backup answer endpoints box (shown above the Answer panel when a solver provides them) ── */
@keyframes backup-box-glow {
  0%, 100% { box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(255, 255, 255, 0.02); }
  50%      { box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(255, 255, 255, 0.02), 0 0 22px rgba(251, 191, 36, 0.22); }
}
.backup-endpoints-box {
  position: relative;
  margin-bottom: 20px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid rgba(251, 191, 36, 0.35);
  background:
    radial-gradient(140% 160% at 0% 0%, rgba(251, 191, 36, 0.1), transparent 55%),
    radial-gradient(140% 160% at 100% 100%, rgba(249, 115, 22, 0.08), transparent 55%),
    linear-gradient(160deg, rgba(24, 20, 14, 0.9), rgba(15, 13, 10, 0.9));
  animation: backup-box-glow 3.2s ease-in-out infinite;
}
.backup-endpoints-title {
  font-weight: 800;
  font-size: 13.5px;
  color: #fbbf24;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}
.backup-endpoints-title span {
  font-weight: 500;
  font-size: 11.5px;
  color: var(--text-secondary, #9aa4b2);
}
.backup-endpoints-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.backup-endpoint-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 10px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(251, 191, 36, 0.15);
}
.backup-endpoint-label {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.backup-endpoint-url {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 12.5px;
  color: var(--text-primary);
  background: none;
  overflow-wrap: anywhere;
}
.backup-copy-btn {
  flex: 0 0 auto;
  padding: 6px 12px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid rgba(251, 191, 36, 0.4);
  background: rgba(251, 191, 36, 0.14);
  color: #fbbf24;
  cursor: pointer;
  transition: background 0.15s ease;
}
.backup-copy-btn:hover { background: rgba(251, 191, 36, 0.26); }
@media (max-width: 640px) {
  .backup-endpoint-row { flex-direction: column; align-items: stretch; }
  .backup-copy-btn { width: 100%; }
}

/* ── Layout Grid ── */
#workspace {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 100vh;
  width: 100vw;
  min-height: 0;
  position: relative;
  z-index: 1; /* sits above the fixed canvas layer */
  background: transparent;
}

/* ── Sidebar ── */
#sidebar {
  background: rgba(4, 4, 6, 0.78);
  backdrop-filter: blur(22px) saturate(180%) brightness(0.92);
  -webkit-backdrop-filter: blur(22px) saturate(180%) brightness(0.92);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 1px 0 0 rgba(255,255,255,0.03), 4px 0 32px rgba(0,0,0,0.45);
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.sidebar-header {
  height: 56px; padding: 0 20px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary); font-weight: 600; font-size: 14px;
  flex-shrink: 0;
}
.sidebar-header .dim { color: var(--text-muted); font-weight: 400; }

.sidebar-content {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: 20px; display: flex; flex-direction: column; gap: 24px;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
}

.solver-controls { display: flex; flex-direction: column; gap: 12px; }

.select-wrapper { position: relative; }
.workspace-select {
  width: 100%; appearance: none; -webkit-appearance: none;
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-primary); padding: 10px 12px; border-radius: 6px;
  font-family: var(--font-sans); font-size: 13px; cursor: pointer;
  transition: 0.2s;
}
.workspace-select:focus { border-color: var(--border-focus); outline: none; }
.workspace-select optgroup { font-weight: 600; color: var(--text-muted); }
.workspace-select option { color: var(--text-primary); font-weight: 400; }
.select-icon {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none;
}

.input-stacked { display: flex; flex-direction: column; gap: 8px; }
.control-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}
#emailInput {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 10px; font-size: 13px; font-family: var(--font-mono);
  outline: none; transition: 0.2s;
}
#emailInput:focus { border-color: var(--border-focus); }
#emailInput::placeholder { color: var(--text-muted); }

#solveBtn {
  background: var(--theme-primary);
  color: #000;
  border: none;
  border-radius: 6px;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--theme-glow);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, opacity 0.25s ease;
}
#solveBtn:hover:not(:disabled) {
  opacity: 1;
  transform: scale(1.03);
  box-shadow: 0 6px 16px var(--theme-glow-intense);
}
#solveBtn:active:not(:disabled) {
  transform: scale(0.98);
}
#solveBtn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.nav-section-title {
  font-size: 11px; font-weight: 600; color: var(--text-muted);
  letter-spacing: 0.05em; text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
  position: sticky;
  top: 0;
  z-index: 3;
  background: linear-gradient(180deg, var(--bg-sidebar) 70%, rgba(5, 5, 5, 0.85) 100%);
  padding: 4px 0 8px;
}
.badge { background: var(--bg-surface); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border); }

#nodeSearch {
  background: var(--bg); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 6px 10px; font-size: 12px; font-family: var(--font-sans);
  outline: none; transition: 0.2s; width: 100%; margin-bottom: 4px;
  position: sticky;
  top: 29px;
  z-index: 2;
}
#nodeSearch:focus { border-color: var(--border-focus); }
#nodeSearch::placeholder { color: var(--text-muted); }

/* Progress */
.progress-bar { width: 100%; height: 3px; background: rgba(255,255,255,0.06); border-radius: 999px; overflow: hidden; }
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--theme-primary), var(--theme-secondary));
  border-radius: 999px;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px var(--theme-glow);
  position: relative;
}
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 40px; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4));
  animation: progressShimmer 1.2s infinite;
}
@keyframes progressShimmer {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(20px); }
}
.progress-text { font-size: 11px; color: var(--text-secondary); margin-top: 6px; font-family: var(--font-mono); }

/* Global Stats */
.workspace-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  margin-top: -8px;
}
.stat-box {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px; text-align: center;
  display: flex; flex-direction: column; gap: 4px;
}
.stat-num { font-family: var(--font-mono); font-size: 18px; font-weight: 600; color: var(--text-primary); line-height: 1; }
.stat-name { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Question Navigator List */
.question-list { display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 6px; cursor: pointer;
  font-size: 13px; color: var(--text-secondary);
  transition: 0.2s; border: 1px solid transparent;
  user-select: none;
  background: transparent;
  width: 100%;
  text-align: left;
  appearance: none;
  -webkit-appearance: none;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--bg-active); color: var(--text-primary); border-color: var(--border); }
.nav-item:focus-visible {
  outline: 1px solid var(--border-focus);
  color: var(--text-primary);
}

.nav-item-num { font-family: var(--font-mono); font-size: 11px; opacity: 0.6; width: 20px; }
.nav-item-status { width: 6px; height: 6px; border-radius: 50%; opacity: 0.8; }
.nav-item-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-item-copy {
  min-width: 0;
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 4px;
}
.nav-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 10px;
  color: var(--text-muted);
}
.nav-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav-pill-stable {
  color: #a7f3d0;
  border-color: rgba(46, 204, 113, 0.28);
}
.nav-pill-watch {
  color: #fde68a;
  border-color: rgba(241, 196, 15, 0.28);
}
.nav-pill-error {
  color: #fca5a5;
  border-color: rgba(231, 76, 60, 0.3);
}
.nav-pill-locked {
  color: #fca5a5;
  border-color: rgba(231, 76, 60, 0.3);
}
.nav-runtime,
.nav-warning-count {
  font-family: var(--font-mono);
}
.status-solved { background: var(--success); }
.status-guide { background: var(--warning); }
.status-bypass { background: var(--info); }
.status-error { background: var(--error); }

.sidebar-footer {
  min-height: 64px; border-top: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: stretch; gap: 8px; padding: 12px 20px;
  flex-shrink: 0;
}
.connection-status { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }
.dot.green { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 8px var(--success); }

.creator-credits {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.02);
  padding-top: 6px;
}
.creator-credits strong {
  color: var(--text-secondary);
}
.credit-links {
  display: flex;
  gap: 10px;
  align-items: center;
}
.credit-links a {
  color: var(--theme-primary); /* Glowing themed accent */
  filter: drop-shadow(0 0 4px var(--theme-glow));
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
}
.credit-links a:hover {
  color: var(--theme-primary-hover);
  filter: drop-shadow(0 0 8px var(--theme-glow-intense));
  transform: translateY(-2px) scale(1.15);
}
#editor {
  display: flex; flex-direction: column; height: 100%;
  min-width: 0;
  min-height: 0;
  background: transparent;
  /* Subtle dark gradient over canvas improves text contrast without blocking the view */
  background-image: linear-gradient(135deg, rgba(0,0,0,0.18) 0%, transparent 50%, rgba(0,0,0,0.12) 100%);
}
.editor-header {
  height: 56px; border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04), 0 4px 24px rgba(0,0,0,0.3);
}
.mobile-header-row {
  display: none;
}
.mobile-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}
.mobile-nav-toggle span {
  width: 16px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 999px;
}
.mobile-question-picker {
  flex: 1;
  min-width: 0;
}
.mobile-picker {
  width: 100%;
  min-height: 40px;
}
.breadcrumbs { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); }
.crumb { font-family: var(--font-mono); }
.crumb-home {
  cursor: pointer;
  transition: color 0.15s ease;
}
.crumb-home:hover {
  color: var(--theme-primary);
  text-decoration: underline;
}
.separator { color: var(--text-muted); }

.editor-actions { display: flex; align-items: center; gap: 8px; }
.divider { width: 1px; height: 16px; background: var(--border); margin: 0 8px; }
.btn-ghost {
  background: transparent; border: none; color: var(--text-secondary);
  font-size: 13px; font-family: var(--font-sans); padding: 6px 10px; cursor: pointer;
  border-radius: 4px; transition: 0.2s;
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-ghost:focus-visible {
  outline: 1px solid var(--border-focus);
  color: var(--text-primary);
}

/* #threeCanvas is now fixed/full-viewport — see top of file */

.editor-canvas {
  flex: 1; overflow-y: auto; padding: 40px;
  display: flex; flex-direction: column;
  min-height: 0;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  position: relative;
  z-index: 1;
  /* Keep pointer-events auto so iOS touch-scroll works on the container itself */
  pointer-events: auto;
  background: transparent;
}

.editor-canvas > * {
  pointer-events: auto;
}

/* Welcome Screen — merged single definition (see also l.1370+ for animation overrides) */
.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-secondary);
  position: relative;
  overflow: visible;
  width: 100%;
  padding: 48px 24px 40px;
  background: radial-gradient(ellipse 70% 50% at 50% 35%, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
}

/* ── Welcome Screen Layout ── */
.welcome-layout-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
.welcome-left-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}
.welcome-icon { margin-bottom: 24px; color: var(--text-muted); }
.welcome-screen h1 { font-size: 24px; color: var(--text-primary); margin-bottom: 12px; font-weight: 500; }
.welcome-screen p { max-width: 440px; font-size: 14px; line-height: 1.6; }

/* Disclaimer Card */
.disclaimer-card {
  --color-sandbox: #06b6d4;      /* Teal/Cyan */
  --color-restricted: #ef4444;   /* Crimson/Rose */
  --color-fairuse: #8b5cf6;      /* Indigo/Violet */
  --color-liability: #f59e0b;    /* Amber/Gold */
  --color-success: #10b981;      /* Emerald */
  
  max-width: 620px;
  margin-top: 36px;
  padding: 30px;
  background: rgba(15, 10, 10, 0.55);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: 16px;
  text-align: left;
  box-shadow: 
    0 30px 70px rgba(0, 0, 0, 0.75), 
    0 0 40px rgba(239, 68, 68, 0.05), 
    inset 0 0 24px rgba(255, 255, 255, 0.015);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transition: transform 0.1s ease-out, 
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.4s ease;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  animation: disclaimerFadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
}

.disclaimer-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120px circle at var(--x, 0) var(--y, 0), rgba(255, 255, 255, 0.08), transparent 80%);
  border-radius: 16px;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  opacity: 0;
}

.disclaimer-card:hover::before {
  opacity: 1;
}

.disclaimer-card > * {
  transform: translateZ(10px); /* Pop content out in 3D */
  transition: transform 0.1s ease-out;
}

@keyframes disclaimerFadeInUp {
  0% {
    opacity: 0;
    transform: translateY(25px) scale(0.98);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.disclaimer-card:hover {
  border-color: rgba(239, 68, 68, 0.45);
  box-shadow: 
    0 35px 80px rgba(0, 0, 0, 0.8), 
    0 0 50px rgba(239, 68, 68, 0.12), 
    inset 0 0 24px rgba(255, 255, 255, 0.02);
}

.disclaimer-card.agreed-state {
  border-color: rgba(16, 185, 129, 0.45);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.65), 
    0 0 35px rgba(16, 185, 129, 0.08), 
    inset 0 0 16px rgba(16, 185, 129, 0.02);
}

.disclaimer-card.agreed-state:hover {
  border-color: rgba(16, 185, 129, 0.65);
  box-shadow: 
    0 30px 70px rgba(0, 0, 0, 0.75), 
    0 0 45px rgba(16, 185, 129, 0.15), 
    inset 0 0 20px rgba(16, 185, 129, 0.03);
}

.disclaimer-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 19px;
  font-weight: 800;
  color: #ef4444;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(239, 68, 68, 0.15);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-shadow: 0 0 15px rgba(239, 68, 68, 0.25);
  font-family: 'Outfit', sans-serif;
  transition: all 0.3s ease;
}

.disclaimer-card.agreed-state .disclaimer-title {
  color: var(--color-success);
  border-bottom-color: rgba(16, 185, 129, 0.2);
  text-shadow: 0 0 15px rgba(16, 185, 129, 0.25);
}

.disclaimer-title svg {
  color: #ef4444;
  filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.6));
  transition: all 0.3s ease;
}

.disclaimer-card.agreed-state .disclaimer-title svg {
  color: var(--color-success);
  filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.6));
}

.disclaimer-body {
  font-size: 13.5px !important;
  line-height: 1.7 !important;
  color: var(--text-secondary);
  max-width: 100% !important;
  font-family: 'Outfit', sans-serif;
}

.disclaimer-link {
  color: var(--color-liability);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px dashed rgba(245, 158, 11, 0.3);
  transition: all 0.25s ease;
  font-family: 'Outfit', sans-serif;
}

.disclaimer-link:hover {
  color: #fbbf24;
  border-bottom-color: #fbbf24;
  filter: drop-shadow(0 0 4px rgba(245, 158, 11, 0.3));
}


/* Displayed Answer Canvas */
.canvas-header { margin-bottom: 32px; }
.canvas-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 8px; }
.canvas-title { font-size: 32px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.02em; }
.canvas-subtitle {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.canvas-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--text-secondary);
  font-size: 12px;
  font-family: var(--font-mono);
}
.canvas-chip-stable {
  color: #a7f3d0;
  border-color: rgba(46, 204, 113, 0.3);
}
.canvas-chip-watch,
.canvas-chip-warning {
  color: #fde68a;
  border-color: rgba(241, 196, 15, 0.3);
}
.canvas-chip-error {
  color: #fca5a5;
  border-color: rgba(231, 76, 60, 0.3);
}

.canvas-body { display: flex; flex-direction: column; gap: 24px; }
.code-container { position: relative; }
.raw-output {
  width: 100%; border: 1px solid var(--border); background: var(--bg-surface);
  border-radius: 8px; padding: 24px; color: var(--text-primary);
  font-family: var(--font-mono); font-size: 14px; line-height: 1.6;
  outline: none; min-height: 300px;
  overflow: auto;
}
.raw-output:focus { border-color: var(--border-focus); }
.raw-output-pre {
  white-space: pre-wrap;
  word-break: break-word;
}
.raw-output-nowrap {
  white-space: pre;
  word-break: normal;
}
.meta-output {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.styled-output {
  padding: 24px; 
  border-left: 2px solid var(--border-focus); 
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 8px 8px 0; 
  color: var(--text-secondary); 
  font-size: 14px; 
  line-height: 1.7;
  white-space: pre-wrap;
}

.styled-output code {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 4px;
  border-radius: 4px;
  font-family: var(--font-mono);
  color: var(--accent);
}

.panel-guide {
  border-color: rgba(46, 204, 113, 0.4);
}

.guide-output {
  border-left-color: var(--success);
  background: rgba(46, 204, 113, 0.05);
}

.styled-output pre {
  background: #0d0d0d;
  padding: 16px;
  border-radius: 8px;
  margin: 12px 0;
  overflow: auto;
}

.code-block-wrapper {
  position: relative;
}

.code-block-wrapper .code-copy-btn {
  position: absolute;
  top: 20px;
  right: 8px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
}

.code-block-wrapper .code-copy-btn:hover {
  opacity: 1;
  background: var(--bg-hover);
  color: var(--text-primary);
}

@keyframes slideDownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.panel-section {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  background: rgba(8, 8, 12, 0.62);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 8px 36px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255,255,255,0.04);
  overflow: hidden;
  transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.2s ease;
}
.panel-section:hover {
  border-color: rgba(255,255,255,0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--theme-glow), inset 0 1px 0 rgba(255,255,255,0.06);
}
.panel-section summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  position: relative;
  transition: color 0.3s;
}
.panel-section summary:hover {
  color: var(--theme-primary-hover);
}
.panel-section summary::-webkit-details-marker { display: none; }
.panel-section summary::after {
  content: '+';
  font-size: 16px;
  line-height: 1;
  color: var(--text-muted);
}
.panel-section[open] summary::after {
  content: '-';
}
.panel-section-body {
  padding: 18px;
  border-top: 1px solid var(--border);
  animation: slideDownFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.panel-section-compact .panel-section-body {
  padding-top: 14px;
}
.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.panel-btn {
  border: 1px solid var(--border);
  background: var(--bg);
}
.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-size: 13px;
}
.diagnostic-block {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
}
.answer-preview {
  width: 100%;
  min-height: 420px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}

.hidden { display: none !important; }

@media (max-width: 960px) {
  #workspace {
    grid-template-columns: 240px 1fr;
  }

  .editor-canvas {
    padding: 24px;
  }

  .canvas-title {
    font-size: 26px;
  }

  .answer-preview {
    min-height: 360px;
  }
}

@media (max-width: 760px) {
  body {
    overflow: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  #workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    width: 100%;
    height: auto;
    min-height: 100vh;
    overflow: visible;
    z-index: auto;
  }

  #sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    min-height: 0;
  }

  .mobile-header-row {
    display: flex;
    width: 100%;
    gap: 10px;
    align-items: center;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .sidebar-content {
    max-height: none;
    padding: 16px;
    gap: 18px;
  }

  .editor-header {
    min-height: 56px;
    height: auto;
    padding: 12px 16px;
    gap: 12px;
    align-items: flex-start;
    flex-direction: column;
  }

  .editor-actions {
    width: 100%;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .editor-canvas {
    padding: 16px;
    overflow-y: visible;
    overflow-x: hidden;
    overscroll-behavior: auto;
    min-height: auto;
    flex: none;
  }

  #editor {
    height: auto;
    min-height: auto;
    overflow: visible;
  }

  .canvas-title {
    font-size: 22px;
    line-height: 1.15;
  }

  .raw-output,
  .styled-output,
  .panel-section-body {
    padding: 16px;
  }

  .panel-section summary {
    padding: 14px 16px;
  }

  .workspace-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .stat-box {
    padding: 8px;
  }

  .answer-preview {
    min-height: 300px;
  }

  .sidebar-footer {
    align-items: flex-start;
    padding: 12px 16px;
  }

  #sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(88vw, 340px);
    height: 100dvh;
    z-index: 30;
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 24px 0 60px rgba(0, 0, 0, 0.6), 1px 0 0 rgba(255,255,255,0.05);
  }

  #sidebar.mobile-open {
    transform: translateX(0);
  }
}

@media (max-width: 480px) {
  .toast-stack {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }

  .sidebar-header {
    padding: 0 16px;
  }

  .workspace-select,
  #emailInput,
  #solveBtn {
    font-size: 12px;
  }

  .workspace-stats {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
  }

  .stat-num {
    font-size: 16px;
  }

  .breadcrumbs {
    font-size: 12px;
    flex-wrap: wrap;
  }

  .mobile-nav-toggle {
    width: 38px;
    height: 38px;
  }

  .canvas-label {
    font-size: 11px;
  }

  .canvas-title {
    font-size: 20px;
  }

  .canvas-chip {
    font-size: 11px;
    padding: 5px 8px;
  }

  .panel-actions {
    flex-direction: column;
  }

  .panel-btn {
    width: 100%;
    justify-content: center;
  }

  .raw-output {
    min-height: 220px;
    font-size: 12px;
  }

  .answer-preview {
    min-height: 240px;
  }
}

/* ── Dashboard (Overview) ── */
.dashboard-container {
  padding: 40px;
  max-width: 1200px;
  margin: 0 auto;
  overflow-y: auto;
  height: 100%;
  animation: dashboardFadeIn 0.4s ease-out;
}
@keyframes dashboardFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.dashboard-header {
  margin-bottom: 32px;
}
.dashboard-header h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.dashboard-header p {
  color: var(--text-secondary);
  font-size: 14px;
}
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.dashboard-card {
  background: rgba(6, 6, 10, 0.72);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 20px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.12s ease-out;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform-style: preserve-3d;
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
}
.dashboard-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(120px circle at var(--x, 0) var(--y, 0), rgba(255, 255, 255, 0.08), transparent 80%);
  border-radius: 12px;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  opacity: 0;
}
.dashboard-card:hover::before {
  opacity: 1;
}
.dashboard-card > * {
  transform: translateZ(15px); /* Pop content out in 3D */
  transition: transform 0.1s ease-out;
}
.dashboard-card.status-stable { border-left: 4px solid var(--success); }
.dashboard-card.status-check { border-left: 4px solid var(--warning); }
.dashboard-card.status-error { border-left: 4px solid var(--error); }

.dashboard-card h3 {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.dashboard-card .q-title {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.dashboard-card .q-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: auto;
}
.dashboard-card .status-badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 10px;
  text-transform: uppercase;
}
.badge-stable { background: rgba(46, 204, 113, 0.15); color: #2ecc71; }
.badge-check { background: rgba(241, 196, 15, 0.15); color: #f1c40f; }
.badge-error { background: rgba(231, 76, 60, 0.15); color: #e74c3c; }

/* ── Sidebar Dashboard Tab ── */
.sidebar-tab-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease, color 0.2s ease;
  cursor: pointer;
}
.sidebar-tab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sidebar-tab-btn.active {
  background: var(--bg-active);
  color: var(--text-primary);
  box-shadow: inset 3px 0 0 var(--info);
}
.sidebar-tab-btn i {
  font-size: 16px;
  color: var(--info);
}

/* ── Header Credits & Layout ── */
.header-right-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Elegant Navbar Vibe Mode Button */
.navbar-vibe-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  padding: 5px 12px;
  cursor: pointer;
  border-radius: 20px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.navbar-vibe-btn:hover {
  background: var(--bg-hover, rgba(255, 255, 255, 0.08));
  color: var(--text-primary);
  border-color: var(--theme-primary);
  box-shadow: 0 0 12px var(--theme-glow, rgba(245, 158, 11, 0.25));
  transform: translateY(-1px);
}
.navbar-vibe-btn.playing {
  background: var(--theme-glow, rgba(245, 158, 11, 0.15));
  border-color: var(--theme-primary);
  color: var(--theme-primary);
  box-shadow: 0 0 16px var(--theme-glow, rgba(245, 158, 11, 0.35));
}
.vibe-nav-icon {
  font-size: 14px;
  line-height: 1;
}
.vibe-nav-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.navbar-vibe-btn .vibe-eq-anim {
  width: 12px;
  height: 12px;
  gap: 1.5px;
}
.navbar-vibe-btn .vibe-eq-anim span {
  width: 1.5px;
}

.navbar-credits {
  display: flex;
  align-items: center;
  gap: 8px;
}
.navbar-credit-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--theme-glow); /* Soft themed tint */
  border: 1px solid var(--theme-primary);
  color: var(--theme-primary);
  font-size: 12px;
  font-family: var(--font-sans);
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  box-shadow: 0 0 12px var(--theme-glow);
}
.navbar-credit-btn:hover {
  background: var(--theme-glow-intense);
  color: var(--theme-primary-hover);
  border-color: var(--theme-primary-hover);
  box-shadow: 0 4px 20px var(--theme-glow-intense), inset 0 0 8px rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}
.navbar-credit-btn svg {
  color: var(--theme-primary);
  transition: color 0.25s ease, transform 0.25s ease;
}
.navbar-credit-btn:hover svg {
  color: var(--theme-primary-hover);
  transform: scale(1.1);
}

@media (max-width: 760px) {
  .header-right-group {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .navbar-credits {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ── Disclaimer Action Area & Animations ── */
.disclaimer-action {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
}
.disclaimer-checkbox-label {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
  font-size: 13.5px;
  font-weight: 550;
  color: var(--text-secondary);
  transition: all 0.25s ease;
  font-family: 'Outfit', sans-serif;
}
.disclaimer-checkbox-label:hover {
  color: var(--text-primary);
}
.disclaimer-checkbox {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 10px;
}
.checkbox-custom {
  position: relative;
  flex-shrink: 0;
  height: 20px;
  width: 20px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1.5px solid rgba(239, 68, 68, 0.4);
  border-radius: 6px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
}
.disclaimer-checkbox-label:hover .checkbox-custom {
  border-color: rgba(239, 68, 68, 0.7);
  background-color: rgba(239, 68, 68, 0.02);
}
.disclaimer-checkbox:checked ~ .checkbox-container .checkbox-custom {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: #050505;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
}
.check-icon {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  transform: scale(0.6);
  opacity: 0;
}
.disclaimer-checkbox:checked ~ .checkbox-container .checkbox-custom .check-icon {
  transform: scale(1);
  opacity: 1;
}
.checkbox-lock-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(239, 68, 68, 0.5);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.checkbox-lock-indicator:hover {
  transform: scale(1.1);
}
.disclaimer-checkbox:checked ~ .checkbox-container .checkbox-lock-indicator {
  color: var(--color-success);
}
.lock-svg {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.disclaimer-checkbox:checked ~ .checkbox-container .checkbox-lock-indicator .lock-svg.closed {
  display: none;
}
.disclaimer-checkbox:not(:checked) ~ .checkbox-container .checkbox-lock-indicator .lock-svg.open {
  display: none;
}
.checkbox-text {
  line-height: 1.5;
  transition: all 0.25s ease;
  color: var(--text-secondary);
  font-family: 'Outfit', sans-serif;
}
.disclaimer-checkbox:checked ~ .checkbox-text {
  color: var(--text-primary);
  font-weight: 650;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

/* Attention Grabber Pulse Animation */
.disclaimer-card.pulse-attention {
  animation: disclaimerGlowPulse 2.5s infinite ease-in-out;
}

@keyframes disclaimerGlowPulse {
  0% {
    border-color: rgba(239, 68, 68, 0.25);
    box-shadow: 
      0 30px 70px rgba(0, 0, 0, 0.75), 
      0 0 35px rgba(239, 68, 68, 0.05), 
      inset 0 0 24px rgba(255, 255, 255, 0.01);
  }
  50% {
    border-color: rgba(239, 68, 68, 0.6);
    box-shadow: 
      0 30px 70px rgba(0, 0, 0, 0.75), 
      0 0 45px rgba(239, 68, 68, 0.2), 
      inset 0 0 24px rgba(239, 68, 68, 0.04);
  }
  100% {
    border-color: rgba(239, 68, 68, 0.25);
    box-shadow: 
      0 30px 70px rgba(0, 0, 0, 0.75), 
      0 0 35px rgba(239, 68, 68, 0.05), 
      inset 0 0 24px rgba(255, 255, 255, 0.01);
  }
}

/* Shake Animation on unaccepted submit */
.disclaimer-card.shake-attention {
  animation: disclaimerShake 0.65s cubic-bezier(.36,.07,.19,.97) both;
  border-color: #ef4444 !important;
  box-shadow: 0 0 45px rgba(239, 68, 68, 0.45) !important;
}

@keyframes disclaimerShake {
  10%, 90% { transform: translate3d(-3px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-8px, 0, 0); }
  40%, 60% { transform: translate3d(8px, 0, 0); }
}


/* ── Welcome Screen Glow & Levitation Animations ── */
/* Background gradient is set on the primary .welcome-screen rule above */

/* Levitating float animation */
@keyframes welcomeFloat {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}
.welcome-icon {
  animation: welcomeFloat 4s ease-in-out infinite;
  color: var(--theme-primary) !important;
  filter: drop-shadow(0 0 16px var(--theme-glow));
  transition: filter 0.3s ease;
}
.welcome-icon:hover {
  filter: drop-shadow(0 0 24px var(--theme-glow-intense));
}



/* Metallic gradient text — dynamically blends with active theme */
.welcome-screen h1.gradient-text {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 35%, var(--theme-primary-hover) 75%, var(--theme-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  transition: all 0.3s ease;
}

/* Glassmorphism version badge — dynamically theme reactive */
.version-badges { display: inline-flex; flex-wrap: wrap; gap: 6px; vertical-align: middle; margin-left: 8px; }
.version-badge {
  font: inherit;
  font-size: 11px;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  font-weight: 600;
  vertical-align: middle;
  background: var(--theme-glow);
  border: 1px solid var(--theme-primary);
  color: var(--theme-primary);
  padding: 2px 7px;
  border-radius: 6px;
  box-shadow: 0 0 10px var(--theme-glow);
  text-shadow: none;
  -webkit-text-fill-color: var(--theme-primary); /* override parent transparent text fill */
}
.version-badge:hover, .version-badge.active {
  opacity: 1;
  background: var(--theme-glow-intense);
  -webkit-text-fill-color: var(--theme-primary-hover);
  color: var(--theme-primary-hover);
  border-color: var(--theme-primary-hover);
}

/* Features Grid */
.features-grid {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  max-width: 680px;
  width: 100%;
}
.feature-mini-card {
  flex: 1;
  padding: 20px;
  background: rgba(6, 6, 10, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  text-align: center;
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  box-shadow: 0 4px 20px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.04);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.12s ease-out;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
}
.feature-mini-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(80px circle at var(--x, 0) var(--y, 0), rgba(255, 255, 255, 0.08), transparent 80%);
  border-radius: 12px;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  opacity: 0;
}
.feature-mini-card:hover::before {
  opacity: 1;
}
.feature-mini-card > * {
  transform: translateZ(12px); /* Pop content out in 3D */
  transition: transform 0.1s ease-out;
}
.feature-mini-card:hover {
  background: rgba(10, 10, 16, 0.72);
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--theme-glow), inset 0 1px 0 rgba(255,255,255,0.06);
}
.feature-mini-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--theme-glow);
  border: 1px solid var(--theme-primary);
  color: var(--theme-primary);
  border-radius: 50%;
  margin-bottom: 12px;
  transition: all 0.25s ease;
}
.feature-mini-card:hover .feature-mini-icon {
  background: var(--theme-glow-intense);
  border-color: var(--theme-primary-hover);
  color: var(--theme-primary-hover);
  box-shadow: 0 0 12px var(--theme-glow-intense);
}
.feature-mini-card h4 {
  font-size: 13.5px;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.feature-mini-card p {
  font-size: 11px !important;
  color: var(--text-muted) !important;
  line-height: 1.5 !important;
  margin: 0 !important;
}

@media (max-width: 640px) {
  .features-grid {
    flex-direction: column;
    gap: 12px;
  }
}

/* Welcome Screen Footer Credits */
.welcome-footer-credits {
  margin-top: 48px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: linear-gradient(120deg, rgba(251, 191, 36, 0.08), rgba(249, 115, 22, 0.05));
}
.welcome-footer-credits a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  padding-bottom: 1px;
}
.welcome-footer-credits a:hover {
  color: var(--theme-primary);
  border-bottom-color: var(--theme-glow);
  filter: drop-shadow(0 0 4px var(--theme-glow));
}
.dot-separator {
  color: rgba(255, 255, 255, 0.2);
}
.support-highlight {
  font-weight: 700;
}
.support-highlight a {
  color: #fbbf24 !important;
  border-bottom-color: rgba(251, 191, 36, 0.4) !important;
}
.support-highlight a:hover {
  color: #fde68a !important;
  filter: drop-shadow(0 0 6px rgba(251, 191, 36, 0.5));
}
.creator-nickname {
  font-weight: 700;
  color: var(--theme-primary);
  text-shadow: 0 0 10px var(--theme-glow);
}
/* Question Page Canvas Footer Credits */
.canvas-footer-credits {
  margin-top: 36px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: linear-gradient(120deg, rgba(251, 191, 36, 0.08), rgba(249, 115, 22, 0.05));
  opacity: 1;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.canvas-footer-credits:hover {
  border-color: rgba(251, 191, 36, 0.5);
  box-shadow: 0 0 18px rgba(251, 191, 36, 0.15);
}
.canvas-footer-credits a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  padding-bottom: 1px;
}
.canvas-footer-credits a:hover {
  color: var(--theme-primary);
  border-bottom-color: var(--theme-glow);
  filter: drop-shadow(0 0 4px var(--theme-glow));
}

/* Deterministic Seed Identicon Canvas */
.seed-identicon-canvas {
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: help;
}
.seed-identicon-canvas:hover {
  border-color: rgba(245, 158, 11, 0.45);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.2), inset 0 0 8px rgba(255, 255, 255, 0.05);
  transform: scale(1.05);
}

/* Focus Mode Switch & Layout Rules */
.focus-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-sans);
  font-weight: 500;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.focus-switch-btn:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
}
.focus-switch-btn[aria-checked="true"] {
  border-color: var(--theme-primary);
  background: var(--theme-glow);
  box-shadow: 0 0 10px var(--theme-glow);
  color: var(--theme-primary-hover);
}
.focus-switch-thumb {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.focus-switch-btn[aria-checked="true"] .focus-switch-thumb {
  background: var(--theme-primary);
  transform: translateX(4px);
  box-shadow: 0 0 6px var(--theme-primary);
}
.canvas-body.workspace-focus-active .panel-variant,
.canvas-body.workspace-focus-active .panel-preview,
.canvas-body.workspace-focus-active .panel-guide,
.canvas-body.workspace-focus-active .panel-notes,
.canvas-body.workspace-focus-active .panel-diagnostics {
  display: none !important;
}
.canvas-body.workspace-focus-active .panel-answer {
  max-width: 720px;
  margin: 32px auto;
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.05);
}

/* Disclaimer Sections Styling */
.disclaimer-sections {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
  margin-bottom: 24px;
  text-align: left;
}
.disclaimer-section-block {
  position: relative;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  padding: 16px 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  font-family: 'Outfit', sans-serif;
  overflow: hidden;
}
.disclaimer-section-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: transparent;
  transition: all 0.3s ease;
}
.disclaimer-section-block:hover {
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
}
.block-icon-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: transform 0.3s ease;
}
.disclaimer-section-block:hover .block-icon-container {
  transform: scale(1.1);
}
.block-icon {
  transition: all 0.3s ease;
}
.block-content-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}
.block-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.disclaimer-section-block h5 {
  margin: 0;
  font-size: 14px;
  font-weight: 650;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  letter-spacing: 0.01em;
}
.disclaimer-section-block p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-family: 'Outfit', sans-serif;
}

/* Individual blocks custom indicators and hover effects */
.disclaimer-section-block.sandbox-block::before {
  background: rgba(6, 182, 212, 0.3);
}
.disclaimer-section-block.sandbox-block:hover::before {
  background: var(--color-sandbox);
  box-shadow: 0 0 10px var(--color-sandbox);
}
.disclaimer-section-block.sandbox-block:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.08);
}
.disclaimer-section-block.sandbox-block .block-icon {
  color: var(--color-sandbox);
  filter: drop-shadow(0 0 6px rgba(6, 182, 212, 0.4));
}
.disclaimer-section-block.sandbox-block h5 {
  color: #cffafe;
}

.disclaimer-section-block.malpractice-block::before {
  background: rgba(239, 68, 68, 0.45);
}
.disclaimer-section-block.malpractice-block:hover::before {
  background: var(--color-restricted);
  box-shadow: 0 0 10px var(--color-restricted);
}
.disclaimer-section-block.malpractice-block:hover {
  border-color: rgba(239, 68, 68, 0.4);
  background: rgba(239, 68, 68, 0.02);
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.1);
}
.disclaimer-section-block.malpractice-block .block-icon {
  color: var(--color-restricted);
  filter: drop-shadow(0 0 6px rgba(239, 68, 68, 0.45));
}
.disclaimer-section-block.malpractice-block h5 {
  color: #ffe4e6;
}

.disclaimer-section-block.fairuse-block::before {
  background: rgba(139, 92, 246, 0.3);
}
.disclaimer-section-block.fairuse-block:hover::before {
  background: var(--color-fairuse);
  box-shadow: 0 0 10px var(--color-fairuse);
}
.disclaimer-section-block.fairuse-block:hover {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.08);
}
.disclaimer-section-block.fairuse-block .block-icon {
  color: var(--color-fairuse);
  filter: drop-shadow(0 0 6px rgba(139, 92, 246, 0.4));
}
.disclaimer-section-block.fairuse-block h5 {
  color: #e0e7ff;
}

.disclaimer-section-block.liability-block::before {
  background: rgba(245, 158, 11, 0.3);
}
.disclaimer-section-block.liability-block:hover::before {
  background: var(--color-liability);
  box-shadow: 0 0 10px var(--color-liability);
}
.disclaimer-section-block.liability-block:hover {
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.08);
}
.disclaimer-section-block.liability-block .block-icon {
  color: var(--color-liability);
  filter: drop-shadow(0 0 6px rgba(245, 158, 11, 0.4));
}
.disclaimer-section-block.liability-block h5 {
  color: #fef3c7;
}

/* Status pills styles */
.block-status-pill {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  font-family: var(--font-mono);
  transition: all 0.3s ease;
}
.sandbox-pill {
  background: rgba(6, 182, 212, 0.1);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.2);
}
.disclaimer-section-block.sandbox-block:hover .sandbox-pill {
  background: rgba(6, 182, 212, 0.2);
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.25);
}
.malpractice-pill {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.disclaimer-section-block.malpractice-block:hover .malpractice-pill {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.45);
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.25);
}
.fairuse-pill {
  background: rgba(139, 92, 246, 0.1);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.2);
}
.disclaimer-section-block.fairuse-block:hover .fairuse-pill {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 0 6px rgba(139, 92, 246, 0.25);
}
.liability-pill {
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.disclaimer-section-block.liability-block:hover .liability-pill {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.25);
}

/* ═══════════════════════════════════════════════════════════════════
   UI Upgrades - Neon Glows, Spotlight Effects & Staggered Animations
   ═══════════════════════════════════════════════════════════════════ */

/* Staggered navigation item animations */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-item-animate {
  animation: slideInUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Breathing neon glowing status rings */
@keyframes greenPulse {
  0% { box-shadow: 0 0 4px #2ecc71, 0 0 8px rgba(46, 204, 113, 0.45); }
  50% { box-shadow: 0 0 10px #2ecc71, 0 0 20px rgba(46, 204, 113, 0.7); }
  100% { box-shadow: 0 0 4px #2ecc71, 0 0 8px rgba(46, 204, 113, 0.45); }
}
@keyframes guidePulse {
  0% { box-shadow: 0 0 4px #f1c40f, 0 0 8px rgba(241, 196, 15, 0.45); }
  50% { box-shadow: 0 0 10px #f1c40f, 0 0 20px rgba(241, 196, 15, 0.7); }
  100% { box-shadow: 0 0 4px #f1c40f, 0 0 8px rgba(241, 196, 15, 0.45); }
}
@keyframes bypassPulse {
  0% { box-shadow: 0 0 4px #3498db, 0 0 8px rgba(52, 152, 219, 0.45); }
  50% { box-shadow: 0 0 10px #3498db, 0 0 20px rgba(52, 152, 219, 0.7); }
  100% { box-shadow: 0 0 4px #3498db, 0 0 8px rgba(52, 152, 219, 0.45); }
}
@keyframes errorPulse {
  0% { box-shadow: 0 0 3px #e74c3c, 0 0 6px rgba(231, 76, 60, 0.45); }
  50% { box-shadow: 0 0 9px #e74c3c, 0 0 18px rgba(231, 76, 60, 0.75); }
  100% { box-shadow: 0 0 3px #e74c3c, 0 0 6px rgba(231, 76, 60, 0.45); }
}

.status-solved {
  animation: greenPulse 2.2s infinite ease-in-out;
}
.status-guide {
  animation: guidePulse 2.2s infinite ease-in-out;
}
.status-bypass {
  animation: bypassPulse 2.2s infinite ease-in-out;
}
.status-error {
  animation: errorPulse 1.6s infinite ease-in-out;
}

/* Theme Switcher in Sidebar */
.theme-selector-section {
  margin-top: 16px;
  padding: 0 0 12px 0;
  border-bottom: 1px solid var(--border);
}
.theme-buttons-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 4px;
}
.theme-buttons-container-single { grid-template-columns: 1fr; margin-bottom: 12px; }
.theme-group-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 10px;
}
.theme-group-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 0.15s ease;
}
.theme-group-toggle:hover { color: var(--text-secondary); }
.theme-group-toggle-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-size: 9px;
}
.theme-group-toggle[aria-expanded="true"] .theme-group-toggle-arrow {
  transform: rotate(90deg);
}
/* Collapsed by default — Classic UI's 4 buttons only appear once the label above is
   clicked, so a first-time visitor's sidebar isn't cluttered with 4 extra buttons up front. */
.theme-buttons-container-collapsed {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: grid-template-rows 0.25s ease, opacity 0.2s ease, margin-top 0.25s ease;
}
.theme-buttons-container-collapsed > * { min-height: 0; }
.theme-buttons-container-collapsed.expanded {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 8px;
}
.theme-buttons-container-collapsed:not(.expanded) { grid-template-columns: repeat(4, 1fr); }
/* The grid-rows collapse trick can leave a few px of residual, hit-testable track height
   even at opacity 0 (confirmed: ~18px, enough for an invisible button to still register a
   click) — belt-and-suspenders it with pointer-events so nothing is clickable while hidden. */
.theme-buttons-container-collapsed:not(.expanded) { pointer-events: none; }
.theme-buttons-container-collapsed:not(.expanded) button { visibility: hidden; }

/* Vibe Mode — mood-refresher music player, collapsed by default like the Classic UI picker. */
.vibe-mode-section { margin-top: 14px; }
.vibe-mode-toggle {
  width: 100%;
  justify-content: space-between;
  padding: 10px 12px !important;
  border-radius: 10px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--theme-primary) 18%, transparent), color-mix(in srgb, var(--theme-secondary, var(--theme-primary)) 10%, transparent)) !important;
  border: 1px solid color-mix(in srgb, var(--theme-primary) 35%, transparent) !important;
  color: var(--text-primary) !important;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2px;
  text-transform: none;
  box-shadow: 0 0 0 1px transparent, 0 4px 14px color-mix(in srgb, var(--theme-primary) 10%, transparent);
  transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.vibe-mode-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--theme-primary) !important;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--theme-primary) 40%, transparent), 0 6px 18px color-mix(in srgb, var(--theme-primary) 20%, transparent);
  color: var(--text-primary) !important;
}
.vibe-mode-toggle .theme-group-toggle-arrow {
  font-size: 12px;
  color: var(--theme-primary);
  margin-left: auto;
}
.vibe-mode-toggle[aria-expanded="true"] {
  background: linear-gradient(135deg, color-mix(in srgb, var(--theme-primary) 26%, transparent), color-mix(in srgb, var(--theme-secondary, var(--theme-primary)) 14%, transparent)) !important;
  border-color: var(--theme-primary) !important;
}
.vibe-player {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  border-radius: 10px;
  background: var(--bg-tertiary, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
}
/* .vibe-player's own `display: flex` above would otherwise silently win over the generic
   `.theme-buttons-container-collapsed` grid-rows collapse trick (same specificity, later in the
   cascade), leaving the panel visually "collapsed" but still taking its full expanded height.
   This compound selector has higher specificity so it always wins, and collapses via max-height
   instead, which plays fine with flex. */
.vibe-player.theme-buttons-container-collapsed {
  display: flex;
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height 0.25s ease, opacity 0.2s ease, margin-top 0.25s ease, padding 0.25s ease, border-width 0.2s ease;
}
.vibe-player.theme-buttons-container-collapsed:not(.expanded) { pointer-events: none; }
.vibe-player.theme-buttons-container-collapsed.expanded {
  max-height: 2000px; /* generous cap: search results + full track list can get tall */
  padding-top: 10px;
  padding-bottom: 10px;
  border-width: 1px;
  overflow: visible;
  opacity: 1;
  margin-top: 8px;
}
.vibe-player-track {
  font-size: 11.5px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.vibe-player-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.vibe-btn {
  background: var(--bg-secondary, rgba(255, 255, 255, 0.06));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  color: var(--text-primary);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.1s ease;
}
.vibe-btn:hover { background: var(--theme-primary); color: #1a1a1a; }
.vibe-btn:active { transform: scale(0.94); }
.vibe-volume { flex: 1; accent-color: var(--theme-primary); }
.vibe-btn-play { background: var(--theme-primary); color: #1a1a1a; font-weight: 700; }
.vibe-btn.active { background: var(--theme-primary); color: #1a1a1a; }
.vibe-vol-icon { font-size: 11px; opacity: 0.7; }

.vibe-progress-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.vibe-time {
  font-size: 9.5px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 26px;
}
.vibe-progress {
  flex: 1;
  accent-color: var(--theme-primary);
  cursor: pointer;
}
.vibe-progress:disabled { cursor: not-allowed; opacity: 0.4; }

.vibe-track-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  max-height: 130px;
  overflow-y: auto;
  border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
}
.vibe-track-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 5px 4px;
  font-size: 11px;
  border-radius: 5px;
  cursor: pointer;
  color: var(--text-secondary);
}
.vibe-track-item:hover { background: var(--bg-secondary, rgba(255, 255, 255, 0.05)); }
.vibe-track-item.active { color: var(--theme-primary); font-weight: 600; }
.vibe-track-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.vibe-track-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  padding: 2px 4px;
  border-radius: 4px;
  line-height: 1;
}
.vibe-track-remove:hover { color: var(--danger, #dc3545); background: rgba(220, 53, 69, 0.12); }

.vibe-add-toggle {
  background: none;
  border: none;
  color: var(--theme-primary);
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
  padding: 2px 0;
  text-align: left;
}
.vibe-add-toggle:hover { text-decoration: underline; }
.vibe-add-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}
.vibe-add-input {
  width: 100%;
  resize: vertical;
  font-size: 10.5px;
  font-family: monospace;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: var(--bg-secondary, rgba(255, 255, 255, 0.04));
  color: var(--text-primary);
  box-sizing: border-box;
}
.vibe-add-actions { display: flex; gap: 6px; }
.vibe-mini-btn {
  background: var(--bg-secondary, rgba(255, 255, 255, 0.06));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  color: var(--text-primary);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 10.5px;
  cursor: pointer;
}
.vibe-mini-btn-primary { background: var(--theme-primary); color: #1a1a1a; border-color: transparent; font-weight: 600; }
.vibe-mini-btn:hover { filter: brightness(1.1); }
.vibe-saaz-moods {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 6px 0;
}
.vibe-mood-chip {
  background: var(--bg-secondary, rgba(255, 255, 255, 0.05));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  color: var(--text-secondary);
  border-radius: 12px;
  padding: 4px 9px;
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.vibe-mood-chip:hover {
  border-color: var(--theme-primary);
  color: var(--text-primary);
}
.vibe-mood-chip.active {
  background: var(--theme-primary);
  border-color: transparent;
  color: #1a1a1a;
}
.vibe-add-status {
  font-size: 10px;
  min-height: 12px;
  color: var(--text-muted);
}
.vibe-player-hint {
  font-size: 10.5px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Soundwave Bouncing Equalizer */
.vibe-eq-anim {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 12px;
  margin-left: 6px;
  opacity: 0;
  transition: opacity 0.3s;
}
.vibe-eq-anim.playing {
  opacity: 1;
}
.vibe-eq-anim span {
  width: 2.5px;
  background: var(--theme-primary, #f59e0b);
  border-radius: 1px;
  height: 20%;
}
.vibe-eq-anim.playing span {
  animation: vibeEqBounce 0.8s ease-in-out infinite alternate;
}
.vibe-eq-anim.playing span:nth-child(1) { height: 40%; animation-delay: 0s; }
.vibe-eq-anim.playing span:nth-child(2) { height: 100%; animation-delay: 0.2s; }
.vibe-eq-anim.playing span:nth-child(3) { height: 60%; animation-delay: 0.4s; }
.vibe-eq-anim.playing span:nth-child(4) { height: 80%; animation-delay: 0.1s; }

@keyframes vibeEqBounce {
  0% { height: 20%; }
  100% { height: 100%; }
}

/* Vibe Profile Badge & Presets Grid */
.vibe-profile-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 11px;
  color: var(--text-secondary);
}
.vibe-user-avatar {
  font-size: 14px;
}
.vibe-user-name {
  font-weight: 600;
  color: var(--theme-primary, #f59e0b);
}

/* Cover Art Container */
.vibe-cover-container {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
}
.vibe-cover-art {
  width: 90px;
  height: 90px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Saaz Music Search Styles */
.vibe-saaz-search-row {
  display: flex;
  gap: 6px;
  align-items: center;
}
.vibe-saaz-results {
  max-height: 180px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}
.vibe-saaz-empty {
  font-size: 11px;
  color: var(--text-muted);
  padding: 10px 4px;
  text-align: center;
}
.vibe-saaz-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.vibe-saaz-item:hover {
  background: color-mix(in srgb, var(--theme-primary) 12%, transparent);
  border-color: color-mix(in srgb, var(--theme-primary) 30%, transparent);
}
.vibe-saaz-item.active {
  background: color-mix(in srgb, var(--theme-primary) 18%, transparent);
  border-color: var(--theme-primary);
}
.vibe-saaz-item.active .vibe-saaz-name { color: var(--theme-primary); }
.vibe-saaz-play-icon {
  font-size: 11px;
  color: var(--theme-primary);
  flex-shrink: 0;
}
.vibe-saaz-thumb {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}
.vibe-saaz-info {
  flex: 1;
  min-width: 0;
}
.vibe-saaz-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.vibe-saaz-artist {
  font-size: 9.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: fit-content;
  max-width: 100%;
}
.vibe-saaz-artist:hover {
  color: var(--theme-primary);
  text-decoration: underline;
}

/* Floating Mini-Player Widget in Workspace Header */
.mini-vibe-widget {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: var(--bg-secondary, rgba(255, 255, 255, 0.05));
  border: 1px solid var(--border, rgba(255, 255, 255, 0.12));
  border-radius: 20px;
  font-size: 11px;
  color: var(--text-secondary);
  transition: all 0.25s ease;
  user-select: none;
  cursor: pointer;
}
.mini-vibe-widget.playing {
  border-color: var(--theme-primary, #f59e0b);
  box-shadow: 0 0 12px var(--theme-glow, rgba(245, 158, 11, 0.25));
  background: rgba(245, 158, 11, 0.08);
}
.mini-vibe-label {
  font-weight: 600;
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}
.mini-vibe-btn {
  background: var(--theme-primary, #f59e0b);
  color: #1a1a1a;
  border: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s;
}
.mini-vibe-btn:hover {
  transform: scale(1.1);
}
.theme-btn-new {
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
  background: var(--theme-primary);
  padding: 1px 5px;
  border-radius: 4px;
  margin-top: -2px;
}
.theme-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 4px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.theme-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-focus);
}
.theme-btn.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--theme-primary);
  box-shadow: 0 0 8px var(--theme-glow);
}
.theme-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: 0 0 4px currentColor;
}
.theme-btn-label {
  font-size: 9px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.theme-btn.active .theme-btn-label {
  color: var(--text-primary);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════════
   P2 Rubric Coach & Interactive Draft Evaluator
   ═══════════════════════════════════════════════════════════════════ */
.p2-coach-panel {
  margin-top: 18px;
  padding: 20px 22px;
  background: linear-gradient(165deg, rgba(20, 20, 26, 0.85) 0%, rgba(10, 10, 14, 0.95) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.p2-coach-panel:focus-within {
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5), 0 0 20px var(--theme-glow);
}
.p2-coach-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--theme-primary), transparent);
  opacity: 0.8;
}

.p2-coach-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.p2-coach-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.p2-coach-icon-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 12px var(--theme-glow);
}
.p2-coach-heading {
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.p2-coach-subheading {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
}

.p2-gate-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.p2-gate-chip .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--theme-primary);
  box-shadow: 0 0 6px var(--theme-primary);
  animation: pulse-dot 2s infinite ease-in-out;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
}

.p2-textarea-wrap {
  position: relative;
  margin-bottom: 12px;
}
.p2-textarea {
  width: 100%;
  min-height: 140px;
  padding: 12px 14px;
  background: rgba(8, 8, 12, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: all 0.2s ease;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.4);
}
.p2-textarea:focus {
  border-color: var(--theme-primary);
  background: rgba(10, 10, 16, 0.95);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.5), 0 0 12px var(--theme-glow);
}
.p2-textarea::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.p2-coach-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.p2-tool-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.p2-btn-tool {
  font-size: 11.5px;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
}
.p2-btn-tool:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-focus);
  color: var(--text-primary);
}

.p2-btn-evaluate {
  font-size: 12px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--theme-primary), var(--theme-secondary));
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  box-shadow: 0 4px 14px var(--theme-glow);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.p2-btn-evaluate:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--theme-glow-intense);
  filter: brightness(1.08);
}
.p2-btn-evaluate:active {
  transform: translateY(0);
}

.p2-live-counter {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}
.p2-counter-pill {
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
}
.p2-counter-pill.valid {
  color: var(--success);
  border-color: rgba(46, 204, 113, 0.3);
  background: rgba(46, 204, 113, 0.06);
}
.p2-counter-pill.invalid {
  color: var(--error);
  border-color: rgba(231, 76, 60, 0.3);
  background: rgba(231, 76, 60, 0.06);
}

.p2-eval-card {
  background: rgba(12, 12, 18, 0.95);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-top: 14px;
  animation: celebrate-pop-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.p2-score-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.p2-score-dial {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.p2-score-val {
  font-size: 24px;
  font-weight: 800;
  font-family: var(--font-sans);
  letter-spacing: -0.5px;
}
.p2-score-max {
  font-size: 12px;
  color: var(--text-muted);
}
.p2-score-grade {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
}

.p2-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}
.p2-metric-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 8px 10px;
}
.p2-metric-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 4px;
}
.p2-metric-status {
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

.p2-check-group {
  margin-bottom: 12px;
}
.p2-check-heading {
  font-size: 11.5px;
  font-weight: 600;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.p2-check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.p2-check-item {
  font-size: 11.5px;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.p2-check-item::before {
  content: '•';
  color: var(--text-muted);
}
.p2-check-item.passed::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
}
.p2-check-item.failed::before {
  content: '✕';
  color: var(--error);
  font-weight: bold;
}

.p2-advice-box {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 11.5px;
  color: var(--text-primary);
  margin-top: 10px;
}
.p2-advice-title {
  color: #a5b4fc;
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* T2 2026 end-term practice workspace */
.status-quiz { opacity: 1; }
.status-quiz-unanswered { background: var(--text-muted); }
.status-quiz-bookmarked { background: var(--warning); box-shadow: 0 0 7px rgba(241, 196, 15, 0.5); }
.status-quiz-drafted { background: var(--info); box-shadow: 0 0 7px rgba(52, 152, 219, 0.5); }
.status-quiz-correct { background: var(--success); box-shadow: 0 0 7px rgba(46, 204, 113, 0.5); }
.status-quiz-incorrect { background: var(--error); box-shadow: 0 0 7px rgba(231, 76, 60, 0.5); }

.endterm-shell {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 28px clamp(16px, 3vw, 36px) 48px;
  display: grid;
  gap: 18px;
}

.endterm-reference-warning {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid rgba(245, 158, 11, 0.58);
  border-left: 5px solid #f59e0b;
  border-radius: 8px;
  background: linear-gradient(105deg, rgba(245, 158, 11, 0.15), rgba(239, 68, 68, 0.08));
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.2), inset 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.endterm-reference-warning::after {
  content: '';
  position: absolute;
  inset: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  pointer-events: none;
}
.endterm-warning-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(245, 158, 11, 0.72);
  border-radius: 8px;
  background: rgba(245, 158, 11, 0.18);
  color: #fbbf24;
  font: 800 21px/1 var(--font-mono);
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.16);
}
.endterm-reference-warning strong {
  display: block;
  margin-bottom: 5px;
  color: #fbbf24;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.endterm-reference-warning p {
  color: var(--text-secondary);
  font-size: 12.5px;
  line-height: 1.6;
}
.endterm-format-guide {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--text-secondary);
}
.endterm-format-guide summary {
  padding: 13px 16px;
  color: var(--theme-primary-hover);
  cursor: pointer;
  font: 650 12px/1.3 var(--font-sans);
}
.endterm-format-guide summary::marker { color: var(--theme-primary); }
.endterm-format-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  padding: 0 16px 13px;
}
.endterm-format-grid > div {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.12);
}
.endterm-format-grid strong { display: block; margin-bottom: 4px; color: var(--text-primary); font-size: 11px; }
.endterm-format-grid span,
.endterm-guide-note { color: var(--text-muted); font-size: 11px; line-height: 1.5; }
.endterm-guide-note { padding: 0 16px 15px; }
.endterm-subjective-guide {
  margin: 20px 0 18px;
  border: 1px solid color-mix(in srgb, var(--theme-primary) 42%, var(--border));
  border-radius: 7px;
  background: color-mix(in srgb, var(--theme-primary) 5%, transparent);
}
.endterm-subjective-guide summary {
  padding: 11px 13px;
  color: var(--theme-primary-hover);
  cursor: pointer;
  font: 650 12px/1.3 var(--font-sans);
}
.endterm-subjective-guide summary::marker { color: var(--theme-primary); }
.endterm-subjective-guide-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 7px;
  padding: 0 13px 11px;
}
.endterm-subjective-guide-grid > div {
  min-width: 0;
  padding: 9px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.025);
}
.endterm-subjective-guide-grid strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-size: 11px;
}
.endterm-subjective-guide-grid span,
.endterm-subjective-guide-note {
  color: var(--text-muted);
  font-size: 10.5px;
  line-height: 1.45;
}
.endterm-subjective-guide-note { padding: 0 13px 12px; }

.endterm-overview,
.endterm-question-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-surface) 94%, var(--theme-primary) 6%);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.2);
}
.endterm-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  padding: 22px;
  border-top: 3px solid var(--theme-primary);
}
.endterm-overview-copy { min-width: 0; }
.endterm-kicker {
  margin-bottom: 7px;
  color: var(--theme-primary);
  font: 700 11px/1.3 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.endterm-overview h2 {
  color: var(--text-primary);
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.2;
}
.endterm-overview-copy p {
  margin-top: 7px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}
.endterm-overview-actions {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}
.endterm-jump-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 5px 8px 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-muted);
  font: 600 11px/1.2 var(--font-sans);
}
.endterm-jump-control select {
  min-height: 28px;
  padding: 4px 24px 4px 8px;
  border: 1px solid var(--border-focus);
  border-radius: 4px;
  background: var(--bg-surface);
  color: var(--text-primary);
  font: 650 11px/1.2 var(--font-sans);
  cursor: pointer;
}
.endterm-jump-control select:focus-visible {
  outline: 2px solid var(--theme-primary);
  outline-offset: 2px;
}
.endterm-progress-row,
.endterm-stat-grid { grid-column: 1 / -1; }
.endterm-progress-copy {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 7px;
  color: var(--text-secondary);
  font: 11px/1.3 var(--font-mono);
}
.endterm-progress-copy strong { color: var(--text-primary); }
.endterm-progress-track {
  height: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.endterm-progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--theme-primary), var(--theme-secondary));
  box-shadow: 0 0 12px var(--theme-glow);
  transition: width 0.25s ease;
}
.endterm-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}
.endterm-stat-grid > div {
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.025);
}
.endterm-stat-grid span {
  display: block;
  margin-bottom: 5px;
  color: var(--text-muted);
  font-size: 10px;
  text-transform: uppercase;
}
.endterm-stat-grid strong {
  color: var(--text-primary);
  font: 650 15px/1.2 var(--font-mono);
}

.endterm-question-card {
  padding: clamp(18px, 3vw, 30px);
}
.endterm-question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}
.endterm-question-meta span {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.025);
  font: 10px/1.25 var(--font-mono);
}
.endterm-question-card h3 {
  max-width: 830px;
  color: var(--text-primary);
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 650;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.endterm-question-card code,
.endterm-feedback code,
.endterm-model-answer code {
  padding: 2px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--theme-primary-hover);
  font-family: var(--font-mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}
.endterm-options {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.endterm-response-hint {
  margin-top: 20px;
  color: var(--text-muted);
  font: 10px/1.3 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.endterm-option {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  width: 100%;
  min-height: 54px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.018);
  color: var(--text-secondary);
  text-align: left;
  font: inherit;
  line-height: 1.5;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}
.endterm-option:hover {
  border-color: var(--border-focus);
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateX(2px);
}
.endterm-option:focus-visible,
.endterm-btn:focus-visible,
.endterm-bookmark:focus-visible {
  outline: 2px solid var(--theme-primary);
  outline-offset: 2px;
}
.endterm-option.is-selected {
  border-color: var(--theme-primary);
  background: color-mix(in srgb, var(--theme-primary) 13%, transparent);
  color: var(--text-primary);
}
.endterm-option.is-correct {
  border-color: var(--success);
  background: rgba(46, 204, 113, 0.1);
  color: var(--text-primary);
}
.endterm-option.is-incorrect {
  border-color: var(--error);
  background: rgba(231, 76, 60, 0.1);
  color: var(--text-primary);
}
.endterm-option-letter {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  background: var(--bg-surface);
  font: 700 12px/1 var(--font-mono);
}
.endterm-option.is-selected .endterm-option-letter { border-color: var(--theme-primary); color: var(--theme-primary-hover); }
.endterm-option.is-correct .endterm-option-letter { border-color: var(--success); color: var(--success); }
.endterm-option.is-incorrect .endterm-option-letter { border-color: var(--error); color: var(--error); }

.endterm-question-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 20px;
}
.endterm-btn,
.endterm-bookmark {
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-secondary);
  font: 600 12px/1.2 var(--font-sans);
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}
.endterm-btn:hover,
.endterm-bookmark:hover { border-color: var(--border-focus); color: var(--text-primary); background: var(--bg-hover); }
.endterm-btn:disabled { cursor: not-allowed; opacity: 0.4; }
.endterm-btn-primary {
  border-color: color-mix(in srgb, var(--theme-primary) 70%, transparent);
  background: var(--theme-primary);
  color: #090909;
}
.endterm-btn-primary:hover { border-color: var(--theme-primary-hover); background: var(--theme-primary-hover); color: #090909; }
.endterm-bookmark.is-active { border-color: var(--warning); color: var(--warning); background: rgba(241, 196, 15, 0.08); }

.endterm-feedback,
.endterm-model-answer {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--info);
  border-radius: 7px;
  background: rgba(52, 152, 219, 0.055);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.65;
}
.endterm-feedback.is-correct { border-left-color: var(--success); background: rgba(46, 204, 113, 0.06); }
.endterm-feedback.is-incorrect { border-left-color: var(--error); background: rgba(231, 76, 60, 0.06); }
.endterm-feedback-heading {
  margin-bottom: 9px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
}
.endterm-feedback p + p,
.endterm-model-answer p + p { margin-top: 8px; }
.endterm-takeaway {
  margin-top: 12px;
  padding-top: 11px;
  border-top: 1px solid var(--border);
  color: var(--theme-primary-hover);
  font-weight: 600;
}
.endterm-draft-label {
  display: block;
  margin: 24px 0 8px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 650;
}
.endterm-draft {
  width: 100%;
  min-height: 250px;
  resize: vertical;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text-primary);
  font: 13px/1.65 var(--font-sans);
}
.endterm-draft:focus { border-color: var(--theme-primary); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--theme-primary) 13%, transparent); }
.endterm-draft-meta { margin-top: 7px; color: var(--text-muted); font: 10px/1.3 var(--font-mono); text-align: right; }
.endterm-model-answer ol,
.endterm-model-answer ul { margin: 10px 0 12px 20px; }
.endterm-model-answer li + li { margin-top: 6px; }
.endterm-answer-subtitle { margin-top: 14px; color: var(--text-primary); font-weight: 700; }
.endterm-rubric { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 14px; }
.endterm-rubric-head { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; color: var(--text-primary); }
.endterm-rubric-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 28px;
  gap: 10px;
  align-items: start;
  padding: 9px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.045);
  cursor: pointer;
}
.endterm-rubric-row input { margin-top: 4px; accent-color: var(--theme-primary); }
.endterm-rubric-row strong { color: var(--theme-primary-hover); text-align: right; }

.endterm-footer-nav {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding-top: 2px;
}
.endterm-footer-nav span {
  min-width: 0;
  color: var(--text-muted);
  font: 10px/1.4 var(--font-mono);
  text-align: center;
  overflow-wrap: anywhere;
}
.endterm-support-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text-muted);
  font-size: 11px;
  text-align: center;
}
.endterm-support-strip a {
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-secondary);
  text-decoration: none;
}
.endterm-support-strip a:hover { border-color: var(--theme-primary); color: var(--theme-primary-hover); }

@media (max-width: 760px) {
  .endterm-shell { padding: 16px 12px 36px; gap: 12px; }
  .endterm-reference-warning { grid-template-columns: 34px minmax(0, 1fr); padding: 13px; gap: 10px; }
  .endterm-warning-mark { width: 32px; height: 32px; font-size: 18px; }
  .endterm-reference-warning strong { font-size: 12px; }
  .endterm-reference-warning p { font-size: 11.5px; }
  .endterm-overview { grid-template-columns: 1fr; padding: 17px; gap: 14px; }
  .endterm-format-grid { grid-template-columns: 1fr; }
  .endterm-subjective-guide-grid { grid-template-columns: 1fr; }
  .endterm-overview-actions { flex-wrap: wrap; }
  .endterm-stat-grid { grid-template-columns: 1fr; }
  .endterm-stat-grid > div { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
  .endterm-stat-grid span { margin-bottom: 0; }
  .endterm-question-card { padding: 17px 14px; }
  .endterm-question-meta { margin-bottom: 14px; }
  .endterm-options { margin-top: 18px; }
  .endterm-option { grid-template-columns: 30px minmax(0, 1fr); gap: 9px; padding: 9px 10px; }
  .endterm-option-letter { width: 28px; height: 28px; }
  .endterm-draft { min-height: 210px; }
  .endterm-footer-nav { grid-template-columns: 1fr 1fr; }
  .endterm-footer-nav span { grid-column: 1 / -1; grid-row: 1; }
}



/* ── Home page solver index (markup generated by scripts/build-catalog.mjs) ── */
.catalog {
  width: 100%;
  max-width: 880px;
  margin: 36px auto 0;
  text-align: left;
}
.catalog-head { text-align: center; margin-bottom: 20px; }
.catalog-head h2 { font-size: 20px; font-weight: 650; color: var(--text-primary); margin: 0 0 8px; }
.welcome-screen .catalog-head p { max-width: 560px; margin: 0 auto; font-size: 13px; }
.catalog-head strong { color: var(--theme-primary); }
.catalog-sub {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 22px 0 10px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.catalog-sub span { font-weight: 400; letter-spacing: 0.04em; text-transform: none; color: var(--text-muted); }
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; align-items: start; }
.catalog-exam {
  background: rgba(6, 6, 10, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: 0 16px;
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.catalog-exam:hover, .catalog-exam[open] { border-color: var(--theme-primary); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--theme-glow); }
.catalog-exam > summary, .catalog-more > summary { list-style: none; cursor: pointer; }
.catalog-exam > summary::-webkit-details-marker, .catalog-more > summary::-webkit-details-marker { display: none; }
.catalog-exam > summary {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 8px;
  padding: 14px 0;
}
.catalog-exam-name { grid-column: 1 / -1; font-size: 13.5px; font-weight: 650; color: var(--text-primary); line-height: 1.35; }
.catalog-chip {
  justify-self: start;
  font-size: 10px;
  font-weight: 650;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--theme-primary);
  background: var(--theme-glow);
  border: 1px solid var(--theme-primary);
}
.catalog-count { font-size: 11px; color: var(--text-muted); align-self: center; }
.catalog-count::after { content: ' ▾'; }
.catalog-exam[open] .catalog-count::after { content: ' ▴'; }
.welcome-screen .catalog-blurb, .welcome-screen .catalog-note { max-width: none; font-size: 12px; color: var(--text-secondary); margin: 0 0 10px; }
.catalog-questions { margin: 0 0 12px; padding-left: 22px; max-height: 260px; overflow-y: auto; font-size: 12px; line-height: 1.6; color: var(--text-secondary); }
.catalog-questions li::marker { color: var(--text-muted); }
.catalog-open {
  margin: 0 0 14px;
  padding: 7px 12px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  color: var(--theme-primary);
  background: transparent;
  border: 1px solid var(--theme-primary);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.catalog-open:hover { background: var(--theme-primary); color: #000; }
.catalog-more { margin-top: 20px; }
.catalog-more > summary {
  display: block;
  text-align: center;
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.catalog-more > summary:hover { border-color: var(--theme-primary); color: var(--theme-primary); }
.catalog-more[open] > summary { margin-bottom: 4px; }
@media (max-width: 640px) {
  .catalog-grid { grid-template-columns: 1fr; }
}
.version-badge:hover, .version-badge.active { opacity: 1; }
.version-badge.active { background: rgba(245, 158, 11, 0.22); }

/* Latest additions: term-coloured, newest solver featured */
.catalog-exam { --term: var(--theme-primary); }
.catalog-exam[data-status="current"] { --term: #34d399; --term-glow: rgba(52, 211, 153, 0.35); }
.catalog-exam[data-status="recent"] { --term: #f59e0b; --term-glow: rgba(245, 158, 11, 0.35); }
.catalog-exam[data-status="archive"] { --term: #60a5fa; --term-glow: rgba(96, 165, 250, 0.35); }
.catalog-exam { border-left: 3px solid var(--term); }
.catalog-exam:hover, .catalog-exam[open] { border-color: var(--term); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 18px var(--term-glow, var(--theme-glow)); }
.catalog-chip { color: var(--term); background: transparent; border-color: var(--term); display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px 2px 2px; }
.catalog-chip b { background: var(--term); color: #000; border-radius: 999px; padding: 1px 8px; font-weight: 750; }
.catalog-open { color: var(--term); border-color: var(--term); }
.catalog-open:hover { background: var(--term); }
.catalog-sub-latest {
  color: var(--theme-primary);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.catalog-sub-latest::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--theme-primary);
  box-shadow: 0 0 8px var(--theme-primary);
}
.catalog-latest { grid-template-columns: repeat(3, 1fr); }
.catalog-feature {
  grid-column: 1 / -1;
  background: linear-gradient(120deg, rgba(52, 211, 153, 0.12), rgba(6, 6, 10, 0.6) 55%);
  box-shadow: 0 0 28px var(--term-glow), 0 6px 24px rgba(0, 0, 0, 0.4);
  padding-top: 2px;
}
.catalog-feature .catalog-exam-name { font-size: 18px; }
.catalog-feature > summary { padding: 18px 0 14px; }
.catalog-live {
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  justify-self: start;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--term);
}
.catalog-live i { width: 8px; height: 8px; border-radius: 50%; background: var(--term); box-shadow: 0 0 0 0 var(--term-glow); animation: catalogPulse 1.8s infinite; }
@keyframes catalogPulse { 70% { box-shadow: 0 0 0 9px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .catalog-live i { animation: none; } }
@media (max-width: 860px) { .catalog-latest { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .catalog-latest { grid-template-columns: 1fr; } }
.catalog-chip { white-space: nowrap; font-size: 10px; }
.catalog-latest { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.catalog-latest .catalog-count { grid-column: 1 / -1; }
@media (max-width: 860px) { .catalog-latest { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } }

/* Home page creator card — ultra-sleek ambient glassmorphic mesh */
.creator-card {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 20px;
  width: 100%;
  max-width: 880px;
  margin: 36px auto 0;
  padding: 20px 24px;
  text-align: left;
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 3px solid var(--theme-primary);
  background: 
    radial-gradient(130% 120% at 0% 0%, var(--theme-glow) 0%, transparent 60%),
    radial-gradient(100% 100% at 100% 100%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
    linear-gradient(145deg, rgba(22, 22, 28, 0.85) 0%, rgba(10, 10, 14, 0.95) 100%);
  box-shadow: 
    0 12px 36px rgba(0, 0, 0, 0.55),
    0 0 32px var(--theme-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.creator-card:hover {
  transform: translateY(-2px);
  border-color: var(--theme-primary-hover);
  box-shadow: 
    0 16px 44px rgba(0, 0, 0, 0.65),
    0 0 45px var(--theme-glow-intense),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.creator-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--theme-primary), transparent);
  opacity: 0.8;
  pointer-events: none;
}
.creator-avatar {
  flex: none;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: #000;
  background: linear-gradient(135deg, var(--theme-primary-hover), var(--theme-primary));
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1), 0 0 20px var(--theme-glow);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.creator-avatar:hover {
  transform: scale(1.08);
  box-shadow: 0 0 0 4px var(--theme-primary), 0 0 25px var(--theme-glow-intense);
}
.creator-avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.creator-info { flex: 1 1 240px; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.creator-kicker { 
  font-size: 10.5px; 
  font-weight: 800; 
  letter-spacing: 0.16em; 
  text-transform: uppercase; 
  color: var(--theme-primary); 
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.3s ease; 
}
.creator-kicker::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--theme-primary);
  box-shadow: 0 0 6px var(--theme-primary);
}
.creator-name { font-size: 17.5px; font-weight: 750; color: var(--text-primary); letter-spacing: -0.01em; }
.creator-card .creator-nickname { font-size: 12px; font-weight: 500; color: var(--text-secondary); opacity: 0.9; }
.creator-sub { font-size: 12px; color: var(--text-secondary); }
.creator-sub a { color: var(--theme-primary); text-decoration: none; font-weight: 600; transition: color 0.2s ease; }
.creator-sub a:hover { text-decoration: underline; color: var(--theme-primary-hover); }
.creator-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.creator-btn {
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
  color: var(--theme-primary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--theme-primary);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.creator-btn:hover { 
  background: var(--theme-primary); 
  color: #000; 
  box-shadow: 0 4px 18px var(--theme-glow);
  transform: translateY(-2px); 
}
.creator-btn-primary { 
  background: linear-gradient(135deg, var(--theme-primary-hover), var(--theme-primary)); 
  color: #000; 
  border-color: transparent; 
  box-shadow: 0 4px 14px var(--theme-glow);
}
.creator-btn-primary:hover { 
  background: linear-gradient(135deg, #ffffff, var(--theme-primary-hover)); 
  box-shadow: 0 6px 22px var(--theme-glow-intense);
  transform: translateY(-2px);
}
@media (max-width: 640px) { .creator-actions { width: 100%; } .creator-btn { flex: 1; text-align: center; } }

/* ── Responsive / touch hardening ── */
@supports (height: 100dvh) {
  #threeCanvas { height: 100dvh; }
  @media (min-width: 761px) { #workspace { height: 100dvh; } }
  @media (max-width: 760px) { #workspace { min-height: 100dvh; } }
}
.catalog-latest { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.catalog-sub { flex-wrap: wrap; gap: 2px 10px; }
.catalog-exam-name, .catalog-questions li, .creator-name { overflow-wrap: anywhere; }
@media (pointer: coarse) {
  .version-badge, .catalog-open, .navbar-credit-btn, .creator-btn { min-height: 40px; }
  .version-badge { padding: 0 12px; display: inline-flex; align-items: center; }
  .catalog-open, .creator-btn, .navbar-credit-btn { display: inline-flex; align-items: center; justify-content: center; }
  .catalog-exam > summary, .catalog-more > summary { min-height: 44px; }
}
@media (max-width: 480px) {
  .welcome-screen { padding: 28px 14px 32px; }
  .welcome-screen h1.gradient-text { font-size: 24px; }
  .catalog-feature .catalog-exam-name { font-size: 16px; }
  .creator-card { padding: 14px; }
  .version-badges { margin-left: 0; justify-content: center; width: 100%; margin-top: 6px; }
}
@media (max-height: 480px) and (orientation: landscape) {
  .welcome-screen { justify-content: flex-start; padding-top: 20px; }
}
@media print { .catalog-open, .creator-actions, #threeCanvas { display: none !important; } .catalog-exam, .catalog-more { break-inside: avoid; } }
.sidebar-footer .creator-credits { width: 100%; gap: 10px; }

/* Creator avatar: enlarged preview on hover / keyboard focus (hover-capable devices only) */
.creator-avatar-wrap { position: relative; flex: none; }
.creator-avatar-preview { display: none; }
@media (hover: hover) and (min-width: 641px) {
  .creator-avatar-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    position: absolute;
    left: 50%;
    bottom: calc(100% + 14px);
    z-index: 20;
    padding: 12px 12px 10px;
    border: 1px solid var(--theme-primary);
    border-radius: 18px;
    background: rgba(8, 8, 12, 0.96);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.6), 0 0 28px var(--theme-glow);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 8px) scale(0.92);
    transform-origin: 50% 100%;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    pointer-events: none;
    white-space: nowrap;
  }
  .creator-avatar-preview::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    width: 12px;
    height: 12px;
    background: rgba(8, 8, 12, 0.96);
    border-right: 1px solid var(--theme-primary);
    border-bottom: 1px solid var(--theme-primary);
    transform: translate(-50%, -6px) rotate(45deg);
  }
  .creator-avatar-preview img { width: 176px; height: 176px; border-radius: 14px; object-fit: cover; display: block; }
  .creator-avatar-preview strong { font-size: 13px; color: var(--text-primary); }
  .creator-avatar-preview span { font-size: 11px; color: var(--text-secondary); }
  .creator-avatar-wrap:hover .creator-avatar-preview,
  .creator-avatar-wrap:focus-within .creator-avatar-preview {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0) scale(1);
  }
}
@media (prefers-reduced-motion: reduce) { .creator-avatar-preview { transition: none; } }

/* Avatar popup is now a hoverable mini profile card (stays open while the cursor is on it) */
.preview-photo { display: block; line-height: 0; }
.preview-links { display: flex; gap: 6px; margin-top: 4px; }
.preview-links a, .creator-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.preview-links a {
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 650;
  border: 1px solid var(--theme-primary);
  border-radius: 8px;
  color: var(--theme-primary);
}
.preview-links a:hover { background: var(--theme-primary); color: #000; }
@media (hover: hover) and (min-width: 641px) {
  .creator-avatar-preview { pointer-events: auto; transition: opacity 0.2s ease 0.12s, transform 0.2s ease 0.12s, visibility 0s linear 0.32s; }
  .creator-avatar-wrap:hover .creator-avatar-preview,
  .creator-avatar-wrap:focus-within .creator-avatar-preview { transition-delay: 0s; }
  /* invisible bridge so the cursor can travel from the avatar into the popup */
  .creator-avatar-preview::before { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 22px; }
  .creator-avatar-preview img { transition: transform 0.2s ease; }
  .preview-photo:hover img { transform: scale(1.03); }
}

/* Card footer: live GitHub / LinkedIn links */
.creator-footer {
  flex: 1 1 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
  padding-top: 12px;
  border-top: 1px solid rgba(251, 191, 36, 0.2);
}
.creator-chip {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}
.creator-chip:hover { border-color: #fbbf24; background: rgba(251, 191, 36, 0.12); color: #fbbf24; }
.creator-chip svg { flex: none; color: #fbbf24; }
.creator-chip em {
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 999px;
  color: #000;
  background: #fbbf24;
}
.creator-chip em[hidden] { display: none; }
@media (max-width: 480px) { .creator-chip { flex: 1 1 100%; justify-content: center; } }