/* ==========================================================================
   CIVIL SERVICE EXAM 2027 - MOCK EXAM SIMULATOR STYLES
   ========================================================================== */

:root {
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-alt: #f1f5f9;
  --bg-navbar: rgba(255, 255, 255, 0.95);
  
  --brand-blue: #1d4ed8;
  --brand-blue-hover: #1e40af;
  --brand-blue-light: #2563eb;
  --accent-gold: #d97706;
  --accent-gold-bg: #fef3c7;
  --success: #059669;
  --success-bg: #ecfdf5;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  
  --text-white: #0f172a;
  --text-main: #1e293b;
  --text-muted: #475569;
  --text-dim: #64748b;
  
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

[data-theme="dark"] {
  --bg-base: #090d16;
  --bg-surface: #0f172a;
  --bg-card: #131d31;
  --bg-card-alt: #1a2744;
  --bg-navbar: rgba(15, 23, 42, 0.96);
  --brand-blue: #3b82f6;
  --brand-blue-hover: #60a5fa;
  --brand-blue-light: #60a5fa;
  --accent-gold: #fbbf24;
  --accent-gold-bg: rgba(251, 191, 36, 0.12);
  --success: #34d399;
  --success-bg: rgba(16, 185, 129, 0.12);
  --danger: #f87171;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --text-white: #f8fafc;
  --text-main: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  padding-bottom: 60px;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Sticky Header Bar */
.exam-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-navbar);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  padding: 10px 0;
}
.exam-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}
.exam-nav-title {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
}
.exam-nav-title img { width: 32px; height: 32px; border-radius: 6px; }

/* Exam Control Center in Header */
.exam-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}
.timer-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
  color: var(--text-white);
  transition: all 0.3s ease;
}
.timer-pill.warning {
  background: var(--accent-gold-bg);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}
.timer-pill.danger {
  background: var(--danger-bg);
  border-color: var(--danger);
  color: var(--danger);
  animation: pulse-danger 1.5s infinite;
}
@keyframes pulse-danger {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

.pause-btn, .theme-btn, .palette-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.pause-btn:hover, .theme-btn:hover, .palette-toggle-btn:hover {
  color: var(--brand-blue-light);
  border-color: var(--brand-blue-light);
}

.submit-exam-btn {
  background: var(--brand-blue);
  color: #ffffff;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.2s ease;
}
.submit-exam-btn:hover {
  background: var(--brand-blue-hover);
}

/* Progress bar strip */
.exam-progress-strip {
  width: 100%;
  height: 4px;
  background: var(--border-subtle);
  overflow: hidden;
}
.exam-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-blue), var(--accent-gold));
  width: 0%;
  transition: width 0.3s ease;
}

/* Section Jump Navigation Tabs */
.section-nav-strip {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 0;
  overflow-x: auto;
}
.section-nav-inner {
  display: flex;
  gap: 10px;
  align-items: center;
  min-width: max-content;
}
.sec-tab-btn {
  background: none;
  border: 1px solid transparent;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.sec-tab-btn:hover {
  color: var(--text-white);
  background: var(--bg-card-alt);
}
.sec-tab-btn.active {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}

/* Main Simulator Grid (Question + Palette) */
.simulator-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 25px;
  margin-top: 25px;
  align-items: start;
}

@media (max-width: 960px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }
  .palette-col {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    z-index: 2000;
    background: var(--bg-surface);
    box-shadow: -5px 0 25px rgba(0,0,0,0.3);
    padding: 20px;
    overflow-y: auto;
    transition: right 0.3s ease;
  }
  .palette-col.open {
    right: 0;
  }
  .palette-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
  }
  .palette-backdrop.open { display: block; }
}

/* Question Card */
.question-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.q-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.q-num-badge {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--brand-blue-light);
}
.q-topic-badge {
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.flag-btn {
  background: none;
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.flag-btn:hover, .flag-btn.flagged {
  border-color: var(--accent-gold);
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
}

.q-text {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-white);
  line-height: 1.7;
  margin-bottom: 26px;
  white-space: pre-line;
}

/* Options */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.option-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-subtle);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.option-label:hover {
  border-color: var(--brand-blue-light);
  background: var(--bg-card-alt);
}
.option-label.selected {
  border-color: var(--brand-blue);
  background: rgba(29, 78, 216, 0.06);
}
[data-theme="dark"] .option-label.selected {
  background: rgba(59, 130, 246, 0.12);
}
.option-key {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.option-label.selected .option-key {
  background: var(--brand-blue);
  border-color: var(--brand-blue);
  color: #ffffff;
}
.option-text {
  font-size: 1rem;
  color: var(--text-main);
  padding-top: 2px;
}

/* Card Footer Controls */
.q-footer-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}
.nav-action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  color: var(--text-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}
.nav-action-btn:hover:not(:disabled) {
  border-color: var(--brand-blue-light);
  color: var(--brand-blue-light);
}
.nav-action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.nav-action-btn.primary {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}
.nav-action-btn.primary:hover:not(:disabled) {
  background: var(--brand-blue-hover);
}
.clear-ans-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: underline;
}
.clear-ans-btn:hover { color: var(--danger); }

/* Palette Column */
.palette-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 90px;
}
.palette-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.palette-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-white);
}
.palette-close-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}
@media (max-width: 960px) {
  .palette-close-btn { display: block; }
}

/* Palette Legend */
.palette-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 12px; height: 12px; border-radius: 3px; }
.legend-dot.unanswered { background: var(--bg-card-alt); border: 1px solid var(--border-medium); }
.legend-dot.answered { background: var(--brand-blue); }
.legend-dot.flagged { background: var(--accent-gold); }
.legend-dot.current { border: 2px solid var(--brand-blue-light); }

/* Palette Filter Buttons */
.palette-filters {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}
.pal-filter-btn {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
}
.pal-filter-btn.active {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}

/* Palette Grid (170 / 165 numbers) */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
}
.pal-btn {
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.15s ease;
}
.pal-btn:hover { border-color: var(--brand-blue-light); }
.pal-btn.answered {
  background: var(--brand-blue);
  border-color: var(--brand-blue);
  color: #ffffff;
}
.pal-btn.flagged::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
}
.pal-btn.current {
  outline: 2px solid var(--brand-blue-light);
  outline-offset: 1px;
}

/* Pause Overlay */
.pause-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2500;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}
.pause-overlay.active { display: flex; }
.pause-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 35px 30px;
  max-width: 440px;
  width: 100%;
}

/* Results Screen */
.results-container {
  display: none;
  margin-top: 30px;
}
.results-hero {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-md);
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
}
.verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  padding: 8px 24px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}
.verdict-badge.passed {
  background: var(--success-bg);
  border: 1px solid var(--success);
  color: var(--success);
}
.verdict-badge.failed {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  color: var(--danger);
}
.score-circle {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-white);
  margin-bottom: 6px;
}
.score-label {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Diagnostic Breakdown Grid */
.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 35px;
}
.diag-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}
.diag-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-white);
  margin-bottom: 6px;
}
.diag-score {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 8px;
}
.diag-bar {
  height: 8px;
  background: var(--bg-card-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 8px;
}
.diag-bar-fill {
  height: 100%;
  background: var(--brand-blue);
  border-radius: var(--radius-full);
}
.diag-status {
  font-size: 0.8rem;
  font-weight: 600;
}

/* Answer Review Filter & Cards */
.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 20px;
}
.review-filter-tabs {
  display: flex;
  gap: 8px;
}
.rev-filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
}
.rev-filter-btn.active {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}

.review-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
}
.review-item-card.correct { border-left: 4px solid var(--success); }
.review-item-card.incorrect { border-left: 4px solid var(--danger); }
.review-item-card.skipped { border-left: 4px solid var(--text-dim); }

.review-q-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}
.review-choice {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-top: 6px;
  border: 1px solid transparent;
}
.review-choice.user-choice-wrong {
  background: var(--danger-bg);
  border-color: var(--danger);
  color: var(--danger);
  font-weight: 600;
}
.review-choice.correct-choice {
  background: var(--success-bg);
  border-color: var(--success);
  color: var(--success);
  font-weight: 700;
}
.review-rationale {
  margin-top: 14px;
  background: var(--bg-card-alt);
  border-left: 3px solid var(--brand-blue);
  padding: 14px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Modals */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  z-index: 2200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  max-width: 480px;
  width: 100%;
}

/* ==========================================================================
   APP DOWNLOAD BANNER (BELOW SIMULATOR)
   ========================================================================== */
.simulator-app-banner {
  margin: 40px 0 25px;
}
.app-banner-card {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(217, 119, 6, 0.08) 100%);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}
.app-banner-content {
  max-width: 580px;
}
.app-banner-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(37, 99, 235, 0.12);
  color: var(--brand-blue-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}
.app-banner-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 8px;
}
.app-banner-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}
.app-banner-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 10px 18px;
  color: #ffffff !important;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  min-width: 170px;
}
.btn-store:hover {
  background: #1e293b;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
}
.btn-store-android:hover {
  border-color: #34d399;
}
.btn-store-ios:hover {
  border-color: #60a5fa;
}
.store-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}
.store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.2;
}
.store-sub {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
}
.store-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}
@media (max-width: 768px) {
  .app-banner-card {
    padding: 22px;
    flex-direction: column;
    align-items: stretch;
  }
  .app-banner-buttons {
    width: 100%;
  }
  .btn-store {
    flex: 1;
    justify-content: center;
  }
}

/* Site Footer */
.simulator-footer {
  background: #04060c;
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0 25px;
  margin-top: 50px;
  font-size: 0.85rem;
  color: #94a3b8;
  text-align: center;
}
.simulator-footer a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.2s;
}
.simulator-footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}