/* ==========================================================================
   German Citizenship Test - Design System & Modern Responsive Styles
   Light Mode Default with High Contrast & Dark Mode Toggle
   ========================================================================== */

:root {
  /* Color Palette - Light Theme (Default) */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;
  --border-color: #cbd5e1;
  --border-subtle: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;

  --success: #16a34a;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --success-text: #14532d;

  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #7f1d1d;

  --warning: #d97706;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;

  --state-accent: #c8102e;
  --state-bg: #fff1f2;
  --state-border: #fecdd3;

  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Radius & Shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.08);
  --shadow-md: 0 4px 10px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 12px 24px -4px rgb(0 0 0 / 0.12);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-main: #0b0f19;
  --bg-card: #151d30;
  --bg-card-subtle: #1e293b;
  --bg-hover: #27354f;
  --border-color: #2e3d5b;
  --border-subtle: #1e293b;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: #172554;
  --primary-border: #1e3a8a;

  --success: #22c55e;
  --success-bg: #052e16;
  --success-border: #166534;
  --success-text: #bbf7d0;

  --danger: #ef4444;
  --danger-bg: #450a0a;
  --danger-border: #991b1b;
  --danger-text: #fecaca;

  --warning: #f59e0b;
  --warning-bg: #451a03;
  --warning-border: #92400e;

  --state-accent: #f43f5e;
  --state-bg: #4c0519;
  --state-border: #9f1239;

  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 6px 14px -2px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 16px 32px -4px rgb(0 0 0 / 0.6);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 4rem;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Container */
.app-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* Top App Header */
.app-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
  padding: 0.25rem 0;
}

.state-badge {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  background-color: var(--state-bg);
  color: var(--state-accent);
  border: 1px solid var(--state-border);
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Theme Switcher Segmented Button */
.theme-switch {
  display: inline-flex;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.2rem;
  cursor: pointer;
  user-select: none;
}

.theme-switch-btn {
  border: none;
  background: transparent;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.theme-switch-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Scoreboard */
.scoreboard {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.score-stats {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.score-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
}

.score-pill.accuracy-pill {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  font-size: 1rem;
  padding: 0.35rem 0.9rem;
}
.score-pill.accuracy-pill.high {
  background: var(--success-bg);
  color: var(--success);
  border-color: var(--success-border);
}
.score-pill.accuracy-pill.medium {
  background: var(--warning-bg);
  color: var(--warning);
  border-color: var(--warning-border);
}
.score-pill.accuracy-pill.low {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.score-pill.correct-pill { color: var(--success); }
.score-pill.wrong-pill { color: var(--danger); }
.score-pill.streak-pill { color: #ea580c; }

.btn-subtle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}
.btn-subtle:hover {
  color: var(--danger);
  text-decoration: underline;
}

/* Nav Tabs */
.mode-tabs {
  display: flex;
  background: var(--bg-card-subtle);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  gap: 0.25rem;
}

.mode-tab {
  flex: 1;
  padding: 0.65rem 1rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}

.mode-tab.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Introductory Landing Page (#intro-view)
   ========================================================================== */
.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 2rem auto;
  line-height: 1.5;
}

/* Setup Form Box (Name & State) */
.setup-form-box {
  background: var(--bg-card-subtle);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 620px;
  margin: 0 auto 2rem auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  text-align: left;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-input, .form-select {
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* CTA Action Buttons */
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto;
}

.cta-btn {
  flex: 1;
  min-width: 260px;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  text-align: center;
  font-family: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.cta-btn-primary {
  background: var(--primary);
  color: #ffffff;
}
.cta-btn-primary:hover {
  background: var(--primary-hover);
}

.cta-btn-secondary {
  background: var(--bg-card);
  border: 2px solid var(--primary);
  color: var(--primary);
}
.cta-btn-secondary:hover {
  background: var(--primary-light);
}

.cta-btn-title {
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-btn-desc {
  font-size: 0.825rem;
  opacity: 0.9;
}

/* Leaderboard Section */
.leaderboard-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow-sm);
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.leaderboard-title {
  font-size: 1.35rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.leaderboard-table-wrap {
  overflow-x: auto;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.leaderboard-table th {
  padding: 0.75rem 1rem;
  background: var(--bg-card-subtle);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1.5px solid var(--border-color);
}

.leaderboard-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.leaderboard-table tr:hover td {
  background: var(--bg-hover);
}

.rank-badge {
  font-weight: 800;
  font-size: 1rem;
  width: 1.8rem;
  display: inline-block;
  text-align: center;
}
.rank-badge.gold { color: #eab308; }
.rank-badge.silver { color: #94a3b8; }
.rank-badge.bronze { color: #b45309; }

.user-name-cell {
  font-weight: 700;
  color: var(--text-primary);
}

.state-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
}
.status-badge.pass {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}
.status-badge.fail {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.empty-leaderboard {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Practice View & Question Card
   ========================================================================== */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-chip:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.filter-chip.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.filter-chip.state-chip.active {
  background: var(--state-accent);
  border-color: var(--state-accent);
}

.filter-select {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
}

.practice-counter {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.question-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  gap: 1rem;
}

.badge-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-number {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.badge-category {
  background: var(--primary-light);
  color: var(--primary);
}
.badge-state {
  background: var(--state-bg);
  color: var(--state-accent);
  border: 1px solid var(--state-border);
}

.btn-icon {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-icon:hover { color: #f59e0b; }
.btn-icon.active {
  color: #f59e0b;
  background: var(--warning-bg);
  border-color: var(--warning-border);
}

.question-prompt {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.question-image-box {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1.5rem;
  background: var(--bg-card-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 1px solid var(--border-subtle);
}

.question-image {
  max-width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.option-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  text-align: left;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.option-card:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.option-badge {
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  border-radius: var(--radius-full);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.option-text { flex: 1; }

.option-card.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}
.option-card.selected .option-badge {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.option-card.correct {
  border-color: var(--success);
  background: var(--success-bg) !important;
  color: var(--success-text);
  font-weight: 600;
}
.option-card.correct .option-badge {
  background: var(--success);
  color: #ffffff;
  border-color: var(--success);
}

.option-card.wrong {
  border-color: var(--danger);
  background: var(--danger-bg) !important;
  color: var(--danger-text);
}
.option-card.wrong .option-badge {
  background: var(--danger);
  color: #ffffff;
  border-color: var(--danger);
}

.feedback-card {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border: 1px solid transparent;
  animation: fadeIn 0.2s ease-in-out;
}
.feedback-card.success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}
.feedback-card.error {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}
.feedback-status { font-size: 1rem; margin-bottom: 0.4rem; }
.feedback-explanation { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.45; }

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-primary { background: var(--primary); color: #ffffff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }

.btn-secondary {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-primary);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-hover); }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-success { background: var(--success); color: #ffffff; }
.btn-success:hover:not(:disabled) { background: #15803d; }

/* ==========================================================================
   English Translation Drawer / Panel (Bottom Section)
   ========================================================================== */
.translation-panel {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 1.5rem;
}

.trans-header-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  background: var(--bg-card-subtle);
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--text-primary);
  transition: background-color var(--transition-fast);
}
.trans-header-btn:hover { background: var(--bg-hover); }

.trans-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.trans-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: normal;
  background: var(--bg-card);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.trans-body {
  padding: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  transition: max-height var(--transition-normal);
}
.trans-body.collapsed { display: none; }

.trans-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.trans-options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.trans-option-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card-subtle);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.trans-option-card.correct {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
  font-weight: 600;
}
.trans-option-card.wrong {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}
.trans-option-card.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}

.trans-option-badge {
  font-size: 0.75rem;
  font-weight: 700;
  width: 1.5rem;
  height: 1.5rem;
  min-width: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
}

.trans-context {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px dashed var(--border-color);
  padding-top: 0.75rem;
  line-height: 1.4;
}

/* ==========================================================================
   Exam Mode Specific Styling
   ========================================================================== */
.exam-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--bg-card);
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.timer-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}
.timer-pill.warning {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
  animation: pulse 1s infinite;
}

.palette-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.palette-legend {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.legend-item { display: flex; align-items: center; gap: 0.35rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.legend-dot.answered { background: var(--primary); }
.legend-dot.flagged { background: #f59e0b; }
.legend-dot.unanswered { background: var(--bg-card-subtle); border: 1px solid var(--border-color); }

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
  gap: 0.45rem;
}

.palette-btn {
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.palette-btn:hover { background: var(--bg-hover); }
.palette-btn.active {
  outline: 2.5px solid var(--primary);
  outline-offset: 1px;
}
.palette-btn.answered {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.palette-btn.flagged::after {
  content: '⚑';
  position: absolute;
  top: -4px;
  right: -2px;
  font-size: 0.75rem;
  color: #d97706;
}

/* ==========================================================================
   Exam Results Screen
   ========================================================================== */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}

.result-badge {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 800;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}
.result-badge.pass {
  background: var(--success-bg);
  color: var(--success);
  border: 2px solid var(--success-border);
}
.result-badge.fail {
  background: var(--danger-bg);
  color: var(--danger);
  border: 2px solid var(--danger-border);
}

.result-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 1.5rem; }

.result-metrics {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.metric-box {
  background: var(--bg-card-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  border: 1px solid var(--border-subtle);
  min-width: 130px;
}
.metric-value { font-size: 1.75rem; font-weight: 800; color: var(--text-primary); }
.metric-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }

.result-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.review-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.review-item {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: left;
}
.review-item.correct { border-left: 5px solid var(--success); }
.review-item.wrong { border-left: 5px solid var(--danger); }

.review-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
}
.review-status.correct { color: var(--success); }
.review-status.wrong { color: var(--danger); }

.review-question { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.75rem; }
.review-image { max-height: 180px; display: block; margin-bottom: 0.75rem; }

.review-answers {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}
.answer-row.correct { color: var(--success); }
.answer-row.wrong { color: var(--danger); }

.review-explanation {
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: var(--bg-card-subtle);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
}

/* Keyboard Hints */
.keyboard-hints {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2rem;
  flex-wrap: wrap;
}

.kbd {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@media (max-width: 640px) {
  .setup-form-box {
    grid-template-columns: 1fr;
  }
  .scoreboard {
    flex-direction: column;
    align-items: flex-start;
  }
  .card-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .card-footer .btn {
    width: 100%;
    justify-content: center;
  }
}