/* PassNeurosurgery - Main Stylesheet */
:root {
  --c-primary: #0c4a6e;
  --c-primary-dark: #082f49;
  --c-primary-light: #0ea5e9;
  --c-accent: #14b8a6;
  --c-correct: #10b981;
  --c-correct-bg: #d1fae5;
  --c-incorrect: #ef4444;
  --c-incorrect-bg: #fee2e2;
  --c-warn-bg: #fef3c7;
  --c-warn: #92400e;
  --c-text: #1f2937;
  --c-muted: #6b7280;
  --c-border: #e5e7eb;
  --c-bg: #ffffff;
  --c-bg-alt: #f9fafb;
  --c-bg-deep: #f3f4f6;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,.1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg-alt);
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
hr { border: none; border-top: 1px solid var(--c-border); margin: 24px 0; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 720px; margin: 0 auto; padding: 0 20px; }

h1, h2, h3, h4 { color: var(--c-primary); margin-top: 0; line-height: 1.3; }
h1 { font-size: 32px; font-weight: 700; }
h2 { font-size: 24px; font-weight: 700; }
h3 { font-size: 20px; font-weight: 600; }
h4 { font-size: 16px; font-weight: 600; }

/* === Announcement bar === */
.announcement {
  background: var(--c-primary);
  color: #fff;
  padding: 8px 20px;
  text-align: center;
  font-size: 14px;
}

/* === Header === */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--c-primary); text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--c-primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; letter-spacing: -0.5px;
}
.main-nav { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.main-nav a { color: var(--c-text); }
.main-nav a:hover { color: var(--c-primary); text-decoration: none; }
.nav-divider { width: 1px; height: 20px; background: var(--c-border); }
.nav-user { color: var(--c-muted); font-size: 14px; }
.nav-logout { color: var(--c-muted) !important; font-size: 14px; }
.nav-toggle {
  display: none;
  background: none; border: none; font-size: 24px; cursor: pointer; color: var(--c-primary);
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px; right: 0; left: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-border);
    align-items: flex-start;
    gap: 12px;
  }
  .main-nav.open { display: flex; }
  .nav-divider { display: none; }
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--c-primary);
  color: #fff;
  border: 1px solid var(--c-primary);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: all .15s;
}
.btn:hover { background: var(--c-primary-dark); border-color: var(--c-primary-dark); text-decoration: none; color: #fff; }
.btn-primary { background: var(--c-primary); }
.btn-secondary { background: #fff; color: var(--c-primary); }
.btn-secondary:hover { background: var(--c-bg-deep); color: var(--c-primary); }
.btn-success { background: var(--c-correct); border-color: var(--c-correct); }
.btn-success:hover { background: #059669; border-color: #059669; }
.btn-danger { background: var(--c-incorrect); border-color: var(--c-incorrect); }
.btn-danger:hover { background: #dc2626; border-color: #dc2626; }
.btn-outline { background: transparent; color: var(--c-primary); border: 1px solid var(--c-border); }
.btn-outline:hover { background: var(--c-bg-deep); color: var(--c-primary); }
.btn-sm { padding: 6px 14px; font-size: 14px; }
.btn-lg { padding: 14px 28px; font-size: 17px; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* === Cards === */
.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.card-title { margin-top: 0; }

/* === Forms === */
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; color: var(--c-text); }
.form-field input[type=text],
.form-field input[type=password],
.form-field input[type=email],
.form-field input[type=url],
.form-field input[type=number],
.form-field input[type=date],
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--c-text);
}
.form-field textarea { min-height: 100px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(12,74,110,.12);
}
.form-field small { color: var(--c-muted); font-size: 13px; margin-top: 4px; display: block; }
.form-row { display: flex; gap: 16px; }
.form-row .form-field { flex: 1; }
.form-check { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.form-check input { width: 16px; height: 16px; }

/* === Alerts === */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin: 16px 0;
  font-size: 14px;
}
.alert-error   { background: var(--c-incorrect-bg); color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: var(--c-correct-bg); color: #065f46; border: 1px solid #6ee7b7; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }
.alert-warn    { background: var(--c-warn-bg); color: var(--c-warn); border: 1px solid #fcd34d; }

/* === Hero === */
.hero {
  position: relative;
  padding: 80px 20px 80px;
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #075985 100%);
  color: #fff;
  overflow: hidden;
}
.hero-bg-shapes {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.hero .container.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-text { text-align: left; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #fbbf24;
  background: rgba(251,191,36,.12);
  border: 1px solid rgba(251,191,36,.35);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  color: #fff;
  font-size: 48px;
  line-height: 1.15;
  margin: 0 0 20px;
  text-shadow: 0 2px 8px rgba(0,0,0,.35);
}
.hero .lead {
  font-size: 19px;
  font-weight: 500;
  line-height: 1.6;
  max-width: 580px;
  margin: 0 0 28px;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,.4);
  background: rgba(0,0,0,.18);
  padding: 16px 22px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.hero-cta {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-microcopy {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,.85);
}
.hero-microcopy span { white-space: nowrap; }
.hero-illustration {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-illustration svg {
  width: 100%;
  max-width: 380px;
  height: auto;
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
.hero .btn-secondary { background: #fff; color: var(--c-primary); box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.hero .btn-secondary:hover { background: #f0f9ff; transform: translateY(-1px); }
.hero .btn-outline { color: #fff; border-color: rgba(255,255,255,.6); background: transparent; }
.hero .btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; }

/* Wave divider at the bottom of the hero */
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  display: block;
}

@media (max-width: 880px) {
  .hero .container.hero-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .hero-text { text-align: center; }
  .hero .lead { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-microcopy { justify-content: center; }
  .hero-illustration { order: -1; }
  .hero-illustration svg { max-width: 280px; }
}
@media (max-width: 640px) {
  .hero { padding: 50px 20px 60px; }
  .hero h1 { font-size: 32px; }
  .hero .lead { font-size: 16px; font-weight: 500; padding: 14px 18px; }
  .hero-illustration svg { max-width: 220px; }
  .hero-microcopy { gap: 10px; font-size: 12px; }
}

/* === Stats strip === */
.stats-strip {
  background: #f8fafc;
  padding: 40px 20px;
  border-bottom: 1px solid var(--c-border);
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-tile { padding: 8px; }
.stat-number {
  font-size: 38px;
  font-weight: 800;
  background: linear-gradient(135deg, #0c4a6e, #0ea5e9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-caption { color: var(--c-muted); font-size: 14px; font-weight: 500; }
@media (max-width: 720px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .stat-number { font-size: 30px; }
}

/* === Feature grid === */
.features {
  padding: 80px 0;
  background: #f8fafc;
  position: relative;
}
.features::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(14,165,233,.06) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(56,189,248,.05) 0%, transparent 40%);
  pointer-events: none;
}
.features .container { position: relative; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.feature {
  background: #fff;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(12,74,110,.10);
  border-color: rgba(14,165,233,.4);
}
.feature-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(14,165,233,.12), rgba(56,189,248,.18));
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--c-primary-light);
  font-size: 24px;
  margin-bottom: 18px;
  border: 1px solid rgba(14,165,233,.18);
}
.feature h3 { font-size: 18px; margin-bottom: 8px; }
.feature p { color: var(--c-muted); margin: 0; font-size: 15px; line-height: 1.55; }

/* === Section === */
.section { padding: 80px 0; }
.section-pricing { background: #fff; }
.section-title { text-align: center; margin-bottom: 12px; font-size: 32px; }
.section-subtitle { text-align: center; color: var(--c-muted); margin-bottom: 40px; font-size: 17px; }

/* Plan "Best value" badge */
.plan { position: relative; }
.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #1f2937;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(251,191,36,.4);
}

/* Final CTA card */
.section-cta {
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 100%);
  padding: 0;
}
.section-cta .container { padding: 80px 20px; }
.cta-card {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
  position: relative;
}
.cta-mark {
  width: 60px; height: 60px;
  margin-bottom: 16px;
}
.cta-card h2 { color: #fff; font-size: 32px; margin-bottom: 12px; }
.cta-card p { color: rgba(255,255,255,.85); font-size: 17px; margin-bottom: 28px; max-width: 480px; margin-left: auto; margin-right: auto; }
.section-cta .btn-secondary { background: #fff; color: var(--c-primary); box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.section-cta .btn-secondary:hover { background: #f0f9ff; }

/* === Pricing === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.plan {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  position: relative;
  display: flex; flex-direction: column;
}
.plan.featured { border: 2px solid var(--c-primary); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.plan.featured::before {
  content: "BEST VALUE";
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--c-primary); color: #fff;
  padding: 4px 14px; border-radius: 100px;
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
}
.plan-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--c-primary); }
.plan-price { font-size: 42px; font-weight: 800; color: var(--c-text); margin: 12px 0; }
.plan-period { color: var(--c-muted); font-size: 14px; margin-bottom: 24px; }
.plan-features { list-style: none; padding: 0; margin: 0 0 28px; text-align: left; flex: 1; }
.plan-features li { padding: 6px 0; padding-left: 24px; position: relative; font-size: 15px; }
.plan-features li::before {
  content: "✓"; color: var(--c-correct);
  position: absolute; left: 0; font-weight: 700;
}

/* === Quiz === */
.quiz-wrap { max-width: 820px; margin: 0 auto; padding: 32px 20px; }
.quiz-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.quiz-progress { font-size: 14px; color: var(--c-muted); }
.quiz-progress strong { color: var(--c-primary); font-weight: 700; }
.quiz-timer {
  background: var(--c-primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 100px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.quiz-timer.warn { background: var(--c-warn); }
.quiz-timer.danger { background: var(--c-incorrect); }
.progress-bar {
  height: 6px; background: var(--c-border); border-radius: 3px; overflow: hidden;
  margin-bottom: 24px;
}
.progress-bar-fill { height: 100%; background: var(--c-primary-light); transition: width .3s; }

.question-card {
  background: #fff; border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 32px;
  box-shadow: var(--shadow);
}
.question-meta {
  font-size: 13px; color: var(--c-muted); margin-bottom: 8px;
  display: flex; gap: 12px; flex-wrap: wrap;
}
.question-meta .tag {
  background: var(--c-bg-deep); padding: 2px 8px; border-radius: 4px;
}
.question-title {
  font-size: 18px; line-height: 1.6; margin: 12px 0 24px;
  color: var(--c-text); font-weight: 500;
}
.question-images { margin: 16px 0; display: flex; gap: 12px; flex-wrap: wrap; }
.question-images img { max-width: 100%; max-height: 360px; border-radius: var(--radius); border: 1px solid var(--c-border); }

.answer-list { list-style: none; padding: 0; margin: 0; }
.answer-option {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; margin-bottom: 10px;
  border: 1px solid var(--c-border); border-radius: var(--radius);
  cursor: pointer; transition: all .15s;
  background: #fff;
}
.answer-option:hover { border-color: var(--c-primary-light); background: var(--c-bg-alt); }
.answer-option input[type=radio] { margin-top: 4px; }
.answer-option.selected { border-color: var(--c-primary); background: rgba(12,74,110,.04); }
.answer-option.correct { border-color: var(--c-correct); background: var(--c-correct-bg); }
.answer-option.incorrect { border-color: var(--c-incorrect); background: var(--c-incorrect-bg); }
.answer-option-letter {
  font-weight: 700; color: var(--c-primary);
  width: 24px; flex-shrink: 0;
}
.answer-option.correct .answer-option-letter { color: var(--c-correct); }
.answer-option.incorrect .answer-option-letter { color: var(--c-incorrect); }

.explanation {
  margin-top: 24px; padding: 20px;
  background: var(--c-bg-alt); border-left: 4px solid var(--c-primary-light);
  border-radius: var(--radius);
  display: none;
}
.explanation.visible { display: block; }
.explanation h4 { margin-top: 0; margin-bottom: 8px; }

.quiz-actions {
  margin-top: 24px; display: flex; gap: 12px; justify-content: space-between; flex-wrap: wrap;
}

/* === Tables === */
.table {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden;
}
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--c-border); font-size: 14px; }
.table th { background: var(--c-bg-alt); font-weight: 600; color: var(--c-muted); text-transform: uppercase; font-size: 12px; letter-spacing: .5px; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--c-bg-alt); }

/* === Badges === */
.badge {
  display: inline-block; padding: 2px 10px;
  border-radius: 100px; font-size: 12px; font-weight: 600;
}
.badge-success { background: var(--c-correct-bg); color: #065f46; }
.badge-danger  { background: var(--c-incorrect-bg); color: #991b1b; }
.badge-warn    { background: var(--c-warn-bg); color: var(--c-warn); }
.badge-info    { background: #dbeafe; color: #1e40af; }
.badge-muted   { background: var(--c-bg-deep); color: var(--c-muted); }

/* === Stats === */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-box {
  background: #fff; border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 20px;
}
.stat-label { font-size: 13px; color: var(--c-muted); text-transform: uppercase; letter-spacing: .5px; }
.stat-value { font-size: 32px; font-weight: 800; color: var(--c-primary); margin: 4px 0; }
.stat-detail { font-size: 13px; color: var(--c-muted); }

/* === Footer === */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--c-border);
  margin-top: 60px;
  padding: 50px 0 0;
  color: var(--c-muted);
  font-size: 14px;
}
.footer-inner { display: flex; gap: 60px; flex-wrap: wrap; padding-bottom: 40px; }
.footer-inner > div:first-child { flex: 1.5; min-width: 220px; }
.footer-brand { font-size: 18px; font-weight: 700; color: var(--c-primary); margin-bottom: 8px; }
.footer-tagline { font-size: 14px; }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; flex: 2; }
.footer-cols > div { min-width: 120px; }
.footer-cols h4 { font-size: 13px; color: var(--c-text); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.footer-cols a { display: block; color: var(--c-muted); padding: 4px 0; }
.footer-cols a:hover { color: var(--c-primary); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--c-border); padding: 20px 0; font-size: 13px; }

/* === Site-main padding === */
.site-main { min-height: 60vh; padding: 32px 0; }
.site-main.no-padding { padding: 0; }

/* === Dashboard === */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}
@media (max-width: 900px) { .dashboard-grid { grid-template-columns: 1fr; } }

/* === Categories grid (for choosing quiz topic) === */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.cat-card {
  background: #fff; border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; gap: 6px;
  cursor: pointer;
  transition: all .15s;
}
.cat-card:hover { border-color: var(--c-primary); box-shadow: var(--shadow); }
.cat-card.selected { border-color: var(--c-primary); background: rgba(12,74,110,.04); }
.cat-card input { display: none; }
.cat-card-name { font-weight: 600; color: var(--c-text); }
.cat-card-meta { font-size: 13px; color: var(--c-muted); }

/* === Performance bars === */
.perf-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; font-size: 14px; }
.perf-row-name { width: 200px; flex-shrink: 0; }
.perf-row-bar { flex: 1; height: 8px; background: var(--c-border); border-radius: 4px; overflow: hidden; }
.perf-row-bar-fill { height: 100%; background: var(--c-primary-light); }
.perf-row-stat { width: 80px; text-align: right; color: var(--c-muted); }

/* === Misc === */
.text-center { text-align: center; }
.text-muted { color: var(--c-muted); }
.text-correct { color: var(--c-correct); }
.text-incorrect { color: var(--c-incorrect); }
.muted-row { color: var(--c-muted); font-size: 14px; }
.spacer-sm { height: 16px; }
.spacer { height: 32px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--c-border); margin-bottom: 24px; }
.tab { padding: 10px 16px; cursor: pointer; color: var(--c-muted); border-bottom: 2px solid transparent; }
.tab:hover { color: var(--c-primary); text-decoration: none; }
.tab.active { color: var(--c-primary); border-color: var(--c-primary); font-weight: 600; }

/* === Pagination === */
.pagination { display: flex; gap: 4px; margin: 24px 0; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: 6px 12px; border: 1px solid var(--c-border); border-radius: var(--radius);
  background: #fff; color: var(--c-text); font-size: 14px;
}
.pagination a:hover { background: var(--c-bg-alt); text-decoration: none; }
.pagination .current { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.pagination .disabled { opacity: .5; pointer-events: none; }

/* === Auth pages === */
.auth-wrap { max-width: 440px; margin: 60px auto; padding: 0 20px; }
.auth-card { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 24px; margin-bottom: 8px; text-align: center; }
.auth-sub { color: var(--c-muted); text-align: center; margin-bottom: 32px; }
.auth-foot { text-align: center; margin-top: 24px; font-size: 14px; color: var(--c-muted); }

/* ===== Additional component styles ===== */

/* Auth */
.auth-alt { text-align: center; margin-top: 20px; font-size: 14px; color: var(--c-muted); }
.auth-alt a { color: var(--c-primary); }

/* Stat grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.stat-box {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
}
.stat-value { font-size: 32px; font-weight: 700; color: var(--c-primary); }
.stat-label { font-size: 14px; color: var(--c-text); font-weight: 600; margin-top: 4px; }
.stat-sub { font-size: 13px; margin-top: 4px; }
.muted { color: var(--c-muted); }
.small { font-size: 13px; }
.lead { font-size: 18px; color: var(--c-muted); margin-top: -8px; }

/* Page intro / header */
.page-intro { text-align: center; margin: 32px 0 24px; }
.page-intro h1 { margin-bottom: 8px; }
.page-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin: 24px 0;
}
.page-header h1 { margin: 0; }
@media (max-width: 600px) {
  .page-header { flex-direction: column; align-items: flex-start; }
}

/* Dashboard */
.dashboard-header {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  margin: 24px 0 16px;
}
.dashboard-sub-status { display: flex; align-items: center; gap: 12px; }

/* Mode grid */
.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 16px 0 32px;
}
.mode-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; flex-direction: column;
}
.mode-card h3 { margin-top: 0; margin-bottom: 4px; }
.mode-card p { margin-top: 0; margin-bottom: 12px; }
.mode-card .form-field { margin-bottom: 10px; }
.mode-card button { margin-top: auto; }

/* Demo list */
.demo-list { max-height: 460px; overflow-y: auto; padding-right: 8px; }
.demo-item {
  display: flex; gap: 12px; padding: 10px;
  border: 1px solid var(--c-border); border-radius: var(--radius);
  margin-bottom: 6px; cursor: pointer; align-items: flex-start;
}
.demo-item:hover { background: var(--c-bg-alt); }
.demo-item input { margin-top: 4px; }
.demo-title { display: block; margin-top: 4px; }
.demo-actions { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }

/* Result cards */
.results-header { margin: 24px 0; }
.results-summary {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 24px;
  display: flex; align-items: center; gap: 32px; flex-wrap: wrap;
}
.results-score { text-align: center; }
.results-pct { font-size: 56px; font-weight: 800; color: var(--c-primary); line-height: 1; }
.results-fraction { color: var(--c-muted); font-size: 14px; margin-top: 4px; }
.results-bar {
  flex: 1; min-width: 240px; height: 36px;
  border-radius: 18px; overflow: hidden;
  display: flex;
  background: var(--c-bg-deep);
}
.results-bar-correct { background: var(--c-correct); color: #fff; display: flex; align-items: center; padding-left: 12px; font-weight: 600; font-size: 14px; min-width: 0; overflow: hidden; }
.results-bar-incorrect { background: var(--c-incorrect); color: #fff; display: flex; align-items: center; padding-left: 12px; font-weight: 600; font-size: 14px; min-width: 0; overflow: hidden; }

.result-card {
  background: #fff; border: 1px solid var(--c-border); border-left: 4px solid var(--c-border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.result-card.is-correct   { border-left-color: var(--c-correct); }
.result-card.is-incorrect { border-left-color: var(--c-incorrect); }
.result-card-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.result-question { margin-bottom: 12px; }
.result-options { padding-left: 24px; margin: 0 0 12px; }
.result-options li { padding: 4px 0; }
.result-options .option-correct { color: var(--c-correct); font-weight: 600; }
.result-options .option-chosen { text-decoration: underline; }
.result-options .option-correct.option-chosen { background: var(--c-correct-bg); padding: 2px 6px; border-radius: 4px; }
.result-options li:not(.option-correct).option-chosen { background: var(--c-incorrect-bg); padding: 2px 6px; border-radius: 4px; color: var(--c-incorrect); }
.result-explanation { margin-top: 12px; }
.result-explanation summary { cursor: pointer; color: var(--c-primary); font-weight: 600; }
.result-explanation > div { padding: 12px; background: var(--c-bg-alt); border-radius: var(--radius); margin-top: 8px; }

/* Mini-bar (e.g. progress within a row) */
.mini-bar { height: 8px; background: var(--c-border); border-radius: 4px; overflow: hidden; display: inline-block; min-width: 80px; vertical-align: middle; margin-right: 6px; }
.mini-bar-fill { height: 100%; background: var(--c-primary-light); }

/* Accuracy color tags */
.acc-pct { font-weight: 600; }
.acc-good { color: var(--c-correct); }
.acc-mid  { color: #d97706; }
.acc-weak { color: var(--c-incorrect); }

/* Static content pages */
.content-page { max-width: 760px; margin: 24px auto; }
.content-page h2 { margin-top: 32px; }
.content-page ul, .content-page ol { padding-left: 22px; }

/* Account page */
.account-grid { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; }
@media (max-width: 760px) { .account-grid { grid-template-columns: 1fr; } }
.account-grid .card { margin: 0; }
.danger-zone { border-color: var(--c-incorrect); }
.danger-zone h2 { color: var(--c-incorrect); }

/* Pricing variants used by /subscribe.php */
.pricing-card {
  background: #fff; border: 2px solid var(--c-border); border-radius: var(--radius);
  padding: 24px; cursor: pointer; position: relative;
  display: flex; flex-direction: column;
}
.pricing-card input[type=radio] { position: absolute; opacity: 0; }
.pricing-card.featured { border-color: var(--c-primary); box-shadow: var(--shadow-lg); }
.pricing-card:has(input:checked) { border-color: var(--c-primary); background: #f0f9ff; }
.pricing-card .price { font-size: 36px; font-weight: 800; color: var(--c-text); margin: 12px 0 4px; }
.pricing-card .price-sub { font-size: 13px; margin-bottom: 16px; }
.pricing-badge {
  position: absolute; top: -12px; right: 16px; background: var(--c-primary);
  color: #fff; padding: 4px 10px; border-radius: 12px; font-size: 11px; font-weight: 700;
}
.pricing-features { list-style: none; padding: 0; margin: 0; }
.pricing-features li { padding: 4px 0; font-size: 14px; }

.discount-row { padding: 16px; margin-top: 24px; }
.discount-row h3 { font-size: 16px; margin-bottom: 8px; }
.discount-row .form-row { gap: 8px; align-items: center; }
.discount-row input { padding: 10px; border: 1px solid var(--c-border); border-radius: var(--radius); flex: 1; }

.checkout-actions { text-align: center; margin: 32px 0; }
.checkout-actions p { margin-top: 12px; }

/* Form helpers */
.form-actions { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.flex-2 { flex: 2; }
.btn-link { background: none; border: none; color: var(--c-primary); cursor: pointer; padding: 4px 8px; font: inherit; }
.btn-link:hover { text-decoration: underline; }

/* Filter bar (admin) */
.filter-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 12px; }
.filter-bar input, .filter-bar select { padding: 8px 12px; border: 1px solid var(--c-border); border-radius: var(--radius); font-size: 14px; }
.filter-bar input { flex: 1; min-width: 160px; }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--c-border); text-align: left; vertical-align: top; font-size: 14px; }
.table th { font-weight: 600; color: var(--c-muted); background: var(--c-bg-alt); }
.table tr:last-child td { border-bottom: none; }
.kv-table { width: 100%; }
.kv-table th { width: 200px; text-align: left; padding: 8px 12px 8px 0; vertical-align: top; color: var(--c-muted); font-weight: 600; }
.kv-table td { padding: 8px 0; }
.form-kv input, .form-kv select { width: 100%; padding: 8px 10px; border: 1px solid var(--c-border); border-radius: var(--radius); }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; background: var(--c-bg-deep); color: var(--c-text); font-size: 12px; font-weight: 600; border: none; cursor: pointer; }
.badge-success { background: var(--c-correct-bg); color: #065f46; }
.badge-error { background: var(--c-incorrect-bg); color: #991b1b; }
.badge-warning { background: var(--c-warn-bg); color: var(--c-warn); }

/* Option-edit rows */
.opt-row { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.opt-row input[type=text] { flex: 1; padding: 8px 10px; border: 1px solid var(--c-border); border-radius: var(--radius); }

/* Image grid */
.img-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; margin-bottom: 12px; }
.img-cell { border: 1px solid var(--c-border); border-radius: var(--radius); padding: 8px; text-align: center; }
.img-cell img { max-height: 100px; }
.img-cell label { font-size: 12px; color: var(--c-muted); }

/* Site footer */
.site-footer { background: var(--c-primary-dark); color: #cbd5e1; padding: 32px 0 24px; margin-top: 48px; }
.site-footer h4 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.site-footer a { color: #94a3b8; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 24px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 4px 0; font-size: 14px; }
.footer-bottom { border-top: 1px solid #334155; padding-top: 16px; font-size: 13px; color: #64748b; text-align: center; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

.site-main { min-height: 60vh; padding-bottom: 40px; }

/* Quiz extra */
.quiz-loading { text-align: center; padding: 48px; color: var(--c-muted); }

/* Utilities */
code { background: var(--c-bg-deep); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
input:disabled { background: var(--c-bg-alt); color: var(--c-muted); }

/* ====================================================================
   Phase-2 features: flag button, feedback widget, mock exam, global stats
   ==================================================================== */

/* Flag button in the question card */
.question-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.question-meta-spacer { flex: 1; }
.flag-btn {
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s ease;
}
.flag-btn:hover { background: #fef3c7; border-color: #fbbf24; color: #92400e; }
.flag-btn.is-flagged {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #92400e;
  font-weight: 600;
}

/* Global stats (% of users got it right) shown after answering */
.global-stats {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  color: #075985;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
}
.global-stats strong { color: #0369a1; }

/* Feedback widget at the bottom of each question */
.feedback-block {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-border);
}
.feedback-toggle {
  font-size: 13px;
  color: var(--c-muted);
}
.feedback-toggle:hover { color: var(--c-primary); }
.feedback-form textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font: inherit;
  margin: 6px 0;
}
.feedback-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.feedback-msg { margin-left: 4px; }

/* Highlighted mode-card (e.g. mock exam) */
.mode-card.highlight {
  border-color: var(--c-primary-light);
  background: linear-gradient(135deg, #fff 0%, #f0f9ff 100%);
  position: relative;
}
.mode-card.highlight::before {
  content: "Exam mode";
  position: absolute;
  top: -10px; right: 14px;
  background: var(--c-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
}

/* Inline checkbox in mode-card */
.check-inline {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  line-height: 1.4;
}
.check-inline input { margin-top: 3px; }

/* Filter-bar tab active state */
.filter-bar .btn-link.active { font-weight: 700; color: var(--c-primary); }

/* ====================================================================
   Flagged-questions review page
   ==================================================================== */

.flagged-list { display: flex; flex-direction: column; gap: 8px; margin: 16px 0; }

.flagged-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.flagged-item[open] { box-shadow: 0 4px 16px rgba(12,74,110,.08); border-color: rgba(14,165,233,.4); }

.flagged-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  transition: background .15s ease;
}
.flagged-item > summary::-webkit-details-marker { display: none; }
.flagged-item > summary:hover { background: var(--c-bg-alt); }
.flagged-item[open] > summary { background: var(--c-bg-alt); border-bottom: 1px solid var(--c-border); }

.flagged-summary-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.flagged-title-text {
  flex: 1;
  min-width: 220px;
  font-weight: 500;
  color: var(--c-text);
}
.flagged-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.reveal-toggle {
  color: var(--c-primary);
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
}
.flagged-item:not([open]) .reveal-toggle::after { content: " ▾"; }
.flagged-item[open] .reveal-toggle { color: var(--c-muted); }
.flagged-item[open] .reveal-toggle::after { content: " ▴"; }

.mono { font-family: monospace; }

.flagged-body {
  padding: 18px 20px;
  border-top: 1px solid var(--c-border);
  background: #fafafa;
}
.flagged-body .question-images {
  display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0;
}
.flagged-body .question-images img {
  max-width: 100%; max-height: 320px; border-radius: 8px; border: 1px solid var(--c-border);
}
.flagged-footer {
  display: flex; align-items: center; gap: 12px;
  margin-top: 14px; padding-top: 12px;
  border-top: 1px dashed var(--c-border);
  flex-wrap: wrap;
}

@media (max-width: 600px) {
  .flagged-summary-row { gap: 8px; }
  .flagged-title-text { min-width: 100%; order: 2; }
  .flagged-meta { margin-left: 0; }
}

/* ====================================================================
   Quiz layout with side navigator
   ==================================================================== */

.quiz-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 24px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px;
}
.quiz-main { min-width: 0; }
.quiz-main .quiz-wrap { max-width: none; padding: 0; }

/* Navigator panel (right side on desktop) */
.quiz-nav {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 14px;
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.quiz-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.quiz-nav-header strong { font-size: 14px; color: var(--c-text); }
.nav-close { display: none; padding: 0; font-size: 18px; }
.nav-toggle { display: none; font-size: 13px; }

.quiz-nav-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
}
.nav-cell {
  position: relative;
  background: #f3f4f6;
  border: 1px solid #d1d5db;
  color: #374151;
  border-radius: 6px;
  padding: 8px 4px;
  font-size: 12px;
  cursor: pointer;
  text-align: center;
  transition: transform .08s ease, border-color .15s ease;
  min-height: 36px;
}
.nav-cell:hover { transform: scale(1.06); border-color: var(--c-primary-light); }
.nav-cell-num { display: block; font-weight: 600; }
.nav-cell-mark { display: block; font-size: 14px; line-height: 1; margin-top: 2px; }
.nav-cell.is-unanswered { background: #f3f4f6; color: #6b7280; }
.nav-cell.is-correct {
  background: #d1fae5;
  border-color: #34d399;
  color: #065f46;
}
.nav-cell.is-correct .nav-cell-mark { color: #047857; font-weight: 700; }
.nav-cell.is-incorrect {
  background: #fee2e2;
  border-color: #f87171;
  color: #991b1b;
}
.nav-cell.is-incorrect .nav-cell-mark { color: #b91c1c; font-weight: 700; }
.nav-cell.is-answered {
  background: #dbeafe;
  border-color: #93c5fd;
  color: #1e3a8a;
}
.nav-cell.is-flagged {
  box-shadow: inset 0 0 0 2px #f59e0b;
}
.nav-cell.is-current {
  outline: 3px solid var(--c-primary);
  outline-offset: 1px;
  z-index: 2;
}
.nav-flag {
  position: absolute;
  top: -4px; right: -2px;
  font-size: 10px;
}

.quiz-nav-legend {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--c-border);
  font-size: 11px;
  color: var(--c-muted);
}
.quiz-nav-legend > div {
  display: flex; align-items: center; gap: 6px;
  margin-bottom: 4px;
}
.nav-swatch {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 16px; height: 16px;
  border-radius: 4px;
  background: #f3f4f6;
  border: 1px solid #d1d5db;
  font-size: 10px;
  font-weight: 700;
}
.nav-swatch.is-correct    { background: #d1fae5; border-color: #34d399; color: #047857; }
.nav-swatch.is-incorrect  { background: #fee2e2; border-color: #f87171; color: #b91c1c; }
.nav-swatch.is-answered   { background: #dbeafe; border-color: #93c5fd; color: #1e3a8a; }
.nav-swatch.is-unanswered { }
.nav-swatch.is-flagged    { box-shadow: inset 0 0 0 2px #f59e0b; background: #fff; }
.nav-swatch.is-current    { outline: 2px solid var(--c-primary); }

/* Action row: split into a group on the right when Skip is present */
.quiz-actions .action-group { display: inline-flex; gap: 8px; }

/* Mobile: navigator becomes a drawer */
@media (max-width: 1024px) {
  .quiz-layout { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .nav-close { display: inline-flex; }
  .quiz-nav {
    position: fixed;
    top: 0; right: 0;
    bottom: 0;
    width: 280px;
    max-width: 86vw;
    max-height: none;
    border-radius: 0;
    border-right: none;
    transform: translateX(100%);
    transition: transform .25s ease;
    z-index: 1000;
    box-shadow: -8px 0 32px rgba(0,0,0,.2);
  }
  .quiz-nav.is-open { transform: translateX(0); }
  .quiz-nav-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 600px) {
  .quiz-nav-grid { grid-template-columns: repeat(6, 1fr); }
}