/* ==========================================================================
   PORTAIL DE COURS — UNIVERSITÉ DE BORDEAUX & IUT DE BORDEAUX
   Charte graphique : Process Cyan (#009DE0), Terracotta (#D97706), Dark Slate (#0A111A)
   Compatible avec l'identité visuelle de ramet.gitlab.io
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bitter:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&family=Fira+Code:wght@400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Charte Université de Bordeaux */
  --ub-cyan: #009DE0;
  --ub-cyan-hover: #38BDF8;
  --ub-cyan-glow: rgba(0, 157, 224, 0.28);
  --ub-cyan-subtle: rgba(0, 157, 224, 0.12);
  --ub-brown: #443A31;
  --ub-terracotta: #D97706;
  --ub-amber-glow: rgba(217, 119, 6, 0.22);
  
  /* Thème sombre haute fidélité (par défaut) */
  --bg-primary: #0A111A;
  --bg-secondary: #0F1A28;
  --bg-surface: #142336;
  --card-bg: rgba(18, 30, 48, 0.85);
  --card-border: rgba(0, 157, 224, 0.20);
  --card-hover-border: rgba(0, 157, 224, 0.60);
  --card-shadow: 0 12px 35px rgba(0, 0, 0, 0.45);
  
  --nav-bg: rgba(10, 17, 26, 0.94);
  --nav-border: rgba(0, 157, 224, 0.22);
  --nav-pill-bg: rgba(15, 23, 42, 0.75);
  --drawer-bg: rgba(10, 17, 26, 0.65);
  --footer-bg: rgba(10, 17, 26, 0.96);
  --avatar-bg: rgba(15, 23, 42, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --badge-bg: rgba(255, 255, 255, 0.06);
  --input-bg: rgba(16, 26, 42, 0.85);
  --input-border: rgba(0, 157, 224, 0.3);
  --name-gradient: linear-gradient(135deg, #FFFFFF 30%, var(--ub-cyan-hover) 100%);
  
  /* Typographie */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #8899A6;
  --text-heading: #FFFFFF;
  
  --font-heading: 'Outfit', 'Bitter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Fira Code', 'SFMono-Regular', Consolas, monospace;
  
  --trans-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  /* Thème clair haute fidélité (Charte UB) */
  --bg-primary: #F8FAFC;
  --bg-secondary: #EDF2F7;
  --bg-surface: #E2E8F0;
  --card-bg: rgba(255, 255, 255, 0.96);
  --card-border: rgba(0, 157, 224, 0.20);
  --card-hover-border: var(--ub-cyan);
  --card-shadow: 0 8px 26px rgba(15, 23, 42, 0.07);
  
  --nav-bg: rgba(255, 255, 255, 0.94);
  --nav-border: rgba(0, 157, 224, 0.22);
  --nav-pill-bg: rgba(241, 245, 249, 0.92);
  --drawer-bg: rgba(248, 250, 252, 0.96);
  --footer-bg: #FFFFFF;
  --avatar-bg: #FFFFFF;
  --border-subtle: rgba(0, 0, 0, 0.08);
  --badge-bg: rgba(0, 0, 0, 0.05);
  --input-bg: #FFFFFF;
  --input-border: rgba(0, 157, 224, 0.3);
  --name-gradient: linear-gradient(135deg, #0F172A 25%, var(--ub-cyan) 100%);
  
  --ub-cyan-glow: rgba(0, 157, 224, 0.16);
  --ub-cyan-subtle: rgba(0, 157, 224, 0.09);
  
  /* Typographie & Lisibilité */
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-heading: #0F172A;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(circle at 10% 12%, rgba(0, 157, 224, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 90% 25%, rgba(0, 117, 191, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(217, 119, 6, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--trans-smooth), color var(--trans-smooth);
}

[data-theme="light"] body {
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(circle at 10% 12%, rgba(0, 157, 224, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 90% 25%, rgba(0, 117, 191, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(217, 119, 6, 0.05) 0%, transparent 50%);
}

/* Commutation des logos clair / sombre */
.logo-light {
  display: none !important;
}
.logo-dark {
  display: block !important;
}

[data-theme="light"] .logo-light {
  display: block !important;
}
[data-theme="light"] .logo-dark {
  display: none !important;
}

/* ==========================================================================
   1. Barre Institutionnelle Supérieure Sticky (Avatar & Logos)
   ========================================================================== */
.inst-navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.25);
  transition: background var(--trans-smooth), border-color var(--trans-smooth), box-shadow var(--trans-smooth);
}

[data-theme="light"] .inst-navbar {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.inst-nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-left-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* Avatar avec lien vers ramet.gitlab.io */
.avatar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  padding: 3px 8px 3px 4px;
  border-radius: 9999px;
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  transition: all var(--trans-fast);
  white-space: nowrap;
}

.avatar-link:hover {
  background: rgba(0, 157, 224, 0.15);
  border-color: var(--ub-cyan);
  transform: translateY(-1px);
  box-shadow: 0 0 14px var(--ub-cyan-glow);
}

.avatar-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--ub-cyan);
  object-fit: cover;
  background: var(--avatar-bg);
}

.avatar-info {
  display: flex;
  flex-direction: column;
}

.avatar-name {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: 0.2px;
}

.avatar-sub {
  font-size: 0.72rem;
  color: var(--ub-cyan);
  display: flex;
  align-items: center;
  gap: 4px;
}

[data-theme="dark"] .avatar-sub,
:root:not([data-theme="light"]) .avatar-sub {
  color: var(--ub-cyan-hover);
}

.nav-divider {
  width: 1px;
  height: 28px;
  background: var(--border-subtle);
}

/* Logos Institutionnels */
.inst-logos-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.inst-logo-link {
  display: flex;
  align-items: center;
  transition: transform var(--trans-fast), opacity var(--trans-fast);
  text-decoration: none;
}

.inst-logo-link:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

.logo-iut {
  height: 36px;
  width: auto;
  filter: drop-shadow(0 2px 8px rgba(0, 157, 224, 0.25));
}

.logo-ub {
  height: 32px;
  width: auto;
  opacity: 0.95;
}

/* Menu de navigation rapide */
.nav-menu-wrapper {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.main-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--nav-pill-bg);
  padding: 4px 6px;
  border-radius: 9999px;
  border: 1px solid var(--card-border);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15), 0 2px 10px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
  white-space: nowrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--trans-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-heading);
  background: rgba(0, 157, 224, 0.14);
  border-color: rgba(0, 157, 224, 0.35);
  transform: translateY(-1px);
}

.nav-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(0, 157, 224, 0.40), rgba(0, 117, 191, 0.55));
  border-color: rgba(0, 157, 224, 0.7);
  box-shadow: 0 0 12px var(--ub-cyan-glow);
  font-weight: 600;
}

.inst-nav-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

/* Sélecteur de thème dans la barre supérieure */
.theme-switch {
  display: inline-flex;
  align-items: center;
  background: var(--nav-pill-bg);
  border: 1px solid var(--card-border);
  border-radius: 9999px;
  padding: 3px;
  gap: 2px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
  flex-shrink: 0;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: all var(--trans-fast);
  padding: 0;
  user-select: none;
}

.theme-btn:hover {
  color: var(--text-heading);
  background: rgba(0, 157, 224, 0.12);
  transform: scale(1.08);
}

.theme-btn.active {
  background: linear-gradient(135deg, var(--ub-cyan), #0075BF);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 10px var(--ub-cyan-glow);
  transform: scale(1.04);
}

.season-badge {
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.80rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  letter-spacing: 0.3px;
  white-space: nowrap;
  flex-shrink: 0;
}

.season-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ub-cyan);
  box-shadow: 0 0 8px var(--ub-cyan);
}

/* ==========================================================================
   2. Hero Banner (Présentation du Cours & Équipe)
   ========================================================================== */
.hero-banner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 24px 20px;
}

.hero-main {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.course-code-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(0, 157, 224, 0.20), rgba(0, 117, 191, 0.30));
  border: 1px solid rgba(0, 157, 224, 0.5);
  color: var(--ub-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 6px 18px;
  border-radius: 9999px;
  margin-bottom: 16px;
  letter-spacing: 1px;
  box-shadow: 0 0 16px var(--ub-cyan-glow);
}

[data-theme="dark"] .course-code-pill,
:root:not([data-theme="light"]) .course-code-pill {
  color: #38BDF8;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.25;
  margin-bottom: 14px;
}

.hero-subtitle {
  font-size: 1.18rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 22px;
}

.hero-chips-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.hero-chip {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-size: 0.88rem;
  padding: 6px 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--card-shadow);
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.hero-chip.highlight {
  border-color: rgba(0, 157, 224, 0.5);
  background: rgba(0, 157, 224, 0.12);
  color: var(--ub-cyan);
  font-weight: 600;
}

[data-theme="dark"] .hero-chip.highlight,
:root:not([data-theme="light"]) .hero-chip.highlight {
  color: var(--ub-cyan-hover);
}

/* Équipe Pédagogique Card */
.team-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px 24px;
  margin: 0 auto;
  max-width: 860px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: var(--card-shadow);
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.team-members-list {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.team-member {
  display: flex;
  align-items: center;
  gap: 10px;
}

.team-member-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.team-member-details {
  display: flex;
  flex-direction: column;
}

.team-role-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  font-weight: 700;
  color: var(--ub-cyan);
  margin-bottom: 2px;
}

[data-theme="dark"] .team-role-label,
:root:not([data-theme="light"]) .team-role-label {
  color: var(--ub-cyan-hover);
}

.team-person-name {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.35;
}

.team-repos-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-repo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--trans-fast);
}

.btn-repo-gitlab {
  background: rgba(226, 67, 41, 0.12);
  border: 1px solid rgba(226, 67, 41, 0.35);
  color: #E24329;
}

[data-theme="dark"] .btn-repo-gitlab,
:root:not([data-theme="light"]) .btn-repo-gitlab {
  background: rgba(226, 67, 41, 0.15);
  color: #FFA08C;
}

.btn-repo-gitlab:hover {
  background: rgba(226, 67, 41, 0.28);
  border-color: #E24329;
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-repo-iut {
  background: rgba(0, 157, 224, 0.12);
  border: 1px solid rgba(0, 157, 224, 0.35);
  color: var(--ub-cyan);
}

[data-theme="dark"] .btn-repo-iut,
:root:not([data-theme="light"]) .btn-repo-iut {
  color: var(--ub-cyan-hover);
}

.btn-repo-iut:hover {
  background: rgba(0, 157, 224, 0.28);
  border-color: var(--ub-cyan);
  transform: translateY(-2px);
  color: #ffffff;
}

/* ==========================================================================
   3. Sections de Contenu
   ========================================================================== */
.content-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 30px 24px 60px;
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.section-block {
  scroll-margin-top: 85px;
}

.section-header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-subtitle {
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ==========================================================================
   4. Bloc Cadrage & Fiche descriptive (Markdown)
   ========================================================================== */
.syllabus-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 28px 32px;
  box-shadow: var(--card-shadow);
  line-height: 1.7;
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.syllabus-markdown h1, 
.syllabus-markdown h2, 
.syllabus-markdown h3 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  margin: 24px 0 12px;
}

.syllabus-markdown h1:first-child {
  margin-top: 0;
}

.syllabus-markdown h1 {
  font-size: 1.6rem;
  color: var(--ub-cyan);
  border-bottom: 1px solid rgba(0, 157, 224, 0.25);
  padding-bottom: 8px;
}

[data-theme="dark"] .syllabus-markdown h1,
:root:not([data-theme="light"]) .syllabus-markdown h1 {
  color: var(--ub-cyan-hover);
}

.syllabus-markdown h2 {
  font-size: 1.3rem;
  color: var(--text-heading);
}

.syllabus-markdown p {
  margin-bottom: 14px;
  color: var(--text-secondary);
}

.syllabus-markdown ul, 
.syllabus-markdown ol {
  margin-left: 24px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.syllabus-markdown li {
  margin-bottom: 6px;
}

.syllabus-markdown hr {
  border: none;
  border-top: 1px dashed var(--border-subtle);
  margin: 24px 0;
}

.syllabus-markdown code {
  font-family: var(--font-mono);
  background: var(--ub-cyan-subtle);
  color: var(--ub-cyan);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

[data-theme="dark"] .syllabus-markdown code,
:root:not([data-theme="light"]) .syllabus-markdown code {
  color: #38BDF8;
}

.syllabus-markdown blockquote {
  border-left: 3px solid var(--ub-cyan);
  background: var(--drawer-bg);
  padding: 10px 16px;
  margin: 16px 0;
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
}

.syllabus-markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.syllabus-markdown th,
.syllabus-markdown td {
  border: 1px solid var(--border-subtle);
  padding: 8px 12px;
  text-align: left;
}

.syllabus-markdown th {
  background: var(--drawer-bg);
  color: var(--text-heading);
}

.syllabus-footer-note {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   5. Séquences Pédagogiques (Multi-supports)
   ========================================================================== */
.sequences-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sequence-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 24px 28px;
  box-shadow: var(--card-shadow);
  transition: border-color var(--trans-fast), transform var(--trans-fast), box-shadow var(--trans-fast), background var(--trans-smooth);
}

.sequence-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
  box-shadow: var(--card-shadow), 0 0 18px var(--ub-cyan-glow);
}

.sequence-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.sequence-badge-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.seq-number-badge {
  background: linear-gradient(135deg, var(--ub-cyan), #0075BF);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.90rem;
  padding: 4px 14px;
  border-radius: 9999px;
  box-shadow: 0 0 10px var(--ub-cyan-glow);
}

.seq-duration-badge {
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.82rem;
  padding: 3px 10px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.sequence-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.sequence-summary {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 18px;
}

.sequence-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.seq-tag-pill {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  background: var(--ub-cyan-subtle);
  color: var(--ub-cyan);
  border: 1px solid rgba(0, 157, 224, 0.28);
  padding: 2px 8px;
  border-radius: 4px;
}

[data-theme="dark"] .seq-tag-pill,
:root:not([data-theme="light"]) .seq-tag-pill {
  color: #38BDF8;
}

/* Supports multiples à l'intérieur d'une séquence */
.sequence-materials {
  background: var(--drawer-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.material-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.material-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.material-info h4 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 8px;
}

.material-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.material-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--trans-fast);
}

.btn-preview-html {
  background: linear-gradient(135deg, rgba(0, 157, 224, 0.25), rgba(0, 117, 191, 0.35));
  border: 1px solid rgba(0, 157, 224, 0.6);
  color: #ffffff;
}

.btn-preview-html:hover {
  background: linear-gradient(135deg, var(--ub-cyan), #0075BF);
  box-shadow: 0 0 14px var(--ub-cyan-glow);
  transform: translateY(-2px);
}

.btn-download-pdf {
  background: rgba(217, 119, 6, 0.15);
  border: 1px solid rgba(217, 119, 6, 0.5);
  color: #D97706;
}

[data-theme="dark"] .btn-download-pdf,
:root:not([data-theme="light"]) .btn-download-pdf {
  background: rgba(217, 119, 6, 0.18);
  color: #FCD34D;
}

.btn-download-pdf:hover {
  background: rgba(217, 119, 6, 0.32);
  border-color: #F59E0B;
  color: #ffffff;
  box-shadow: 0 0 14px var(--ub-amber-glow);
  transform: translateY(-2px);
}

.btn-download-code {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #10B981;
}

[data-theme="dark"] .btn-download-code,
:root:not([data-theme="light"]) .btn-download-code {
  background: rgba(16, 185, 129, 0.15);
  color: #6EE7B7;
}

.btn-download-code:hover {
  background: rgba(16, 185, 129, 0.28);
  border-color: #10B981;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.35);
}

/* Fichiers et scripts associés */
.scripts-list-container {
  width: 100%;
}

.scripts-pills-grid {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.script-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 6px;
  text-decoration: none;
  transition: all var(--trans-fast);
}

.script-pill:hover {
  background: rgba(0, 157, 224, 0.18);
  border-color: var(--ub-cyan);
  color: var(--text-heading);
  transform: translateY(-1px);
}

[data-theme="dark"] .script-pill:hover,
:root:not([data-theme="light"]) .script-pill:hover {
  color: var(--ub-cyan-hover);
}

/* --- Note Pédagogique Dépliable (Extraite du guide) --- */
.seq-note-collapsible {
  margin-top: 18px;
  background: var(--drawer-bg);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--ub-cyan);
  border-radius: 8px;
  padding: 12px 18px;
  transition: all var(--trans-smooth);
}

.seq-note-collapsible[open] {
  background: rgba(14, 24, 38, 0.75);
}

[data-theme="light"] .seq-note-collapsible[open] {
  background: rgba(241, 245, 249, 0.95);
}

.seq-note-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-heading);
  user-select: none;
  outline: none;
}

.seq-note-summary:hover {
  color: var(--ub-cyan);
}

.seq-note-summary::-webkit-details-marker {
  display: none;
}

.seq-note-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.seq-note-arrow {
  font-size: 0.85rem;
  transition: transform var(--trans-fast);
  color: var(--text-muted);
}

.seq-note-collapsible[open] .seq-note-arrow {
  transform: rotate(180deg);
}

.seq-note-body {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.90rem;
  color: var(--text-secondary);
}

.seq-note-body h3 {
  font-size: 1.02rem;
  color: var(--text-heading);
  margin: 14px 0 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.seq-note-body h3:first-child {
  margin-top: 0;
}

.seq-note-body p {
  margin-bottom: 10px;
}

.seq-note-body ul {
  margin-left: 20px;
  margin-bottom: 12px;
}

.seq-note-body li {
  margin-bottom: 4px;
}

.seq-note-body pre {
  background: #060B11;
  color: #E2E8F0;
  padding: 12px 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  margin: 10px 0 14px;
  border: 1px solid var(--border-subtle);
}

.seq-note-body blockquote {
  border-left: 3px solid var(--ub-terracotta);
  background: rgba(217, 119, 6, 0.08);
  padding: 8px 14px;
  margin: 12px 0;
  border-radius: 0 6px 6px 0;
  font-size: 0.88rem;
}

/* ==========================================================================
   6. Bloc Évaluation / Projet (SAE) & Annales
   ========================================================================== */
.eval-card,
.evaluation-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 24px 28px;
  box-shadow: var(--card-shadow);
  margin-bottom: 24px;
  transition: border-color var(--trans-fast), background var(--trans-smooth);
}

.eval-card:hover,
.evaluation-card:hover {
  border-color: var(--card-hover-border);
}

.eval-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.eval-badge {
  background: linear-gradient(135deg, var(--ub-terracotta), #B45309);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 4px 14px;
  border-radius: 9999px;
  box-shadow: 0 0 10px var(--ub-amber-glow);
}

.eval-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.eval-desc {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 16px;
}

.eval-year-box {
  background: var(--drawer-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 20px;
}

.eval-year-title {
  font-size: 1.0rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.eval-year-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eval-year-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.90rem;
  color: var(--text-secondary);
}

.eval-year-item::before {
  content: "✦";
  color: var(--ub-cyan);
  font-weight: bold;
}

/* Grille des annales */
.annales-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.annale-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  text-decoration: none;
  transition: all var(--trans-fast);
}

.annale-card:hover {
  border-color: var(--ub-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--ub-cyan-glow);
}

.annale-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.annale-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.annale-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.annale-info p {
  font-size: 0.80rem;
  color: var(--text-muted);
}

.annale-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.annale-tag {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--ub-terracotta);
  background: var(--ub-amber-glow);
  padding: 2px 8px;
  border-radius: 4px;
}

.annale-action {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ub-cyan);
}

[data-theme="dark"] .annale-action,
:root:not([data-theme="light"]) .annale-action {
  color: var(--ub-cyan-hover);
}

/* ==========================================================================
   7. Bloc Ressources & Cours Connexes
   ========================================================================== */
.ressources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 30px;
}

.ressource-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 18px 20px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--trans-smooth), border-color var(--trans-smooth), box-shadow var(--trans-smooth), background var(--trans-smooth);
  box-shadow: var(--card-shadow);
}

.ressource-card:hover {
  border-color: var(--card-hover-border);
  background: var(--card-bg);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px var(--ub-cyan-glow);
}

.res-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}

.res-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.res-info h3 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.res-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.res-footer {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
}

.res-tag {
  background: var(--ub-cyan-subtle);
  color: var(--ub-cyan);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

[data-theme="dark"] .res-tag,
:root:not([data-theme="light"]) .res-tag {
  color: var(--ub-cyan-hover);
}

.res-action {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.ressource-card:hover .res-action {
  color: var(--ub-cyan);
}

[data-theme="dark"] .ressource-card:hover .res-action,
:root:not([data-theme="light"]) .ressource-card:hover .res-action {
  color: var(--ub-cyan-hover);
}

/* Cours Connexes */
.related-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.related-course-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px 18px;
  text-decoration: none;
  transition: transform var(--trans-smooth), border-color var(--trans-smooth), box-shadow var(--trans-smooth), background var(--trans-smooth);
  box-shadow: var(--card-shadow);
}

.related-course-card:hover {
  background: var(--card-bg);
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--ub-cyan-glow);
}

.rel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.rel-code {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ub-cyan);
  font-size: 0.86rem;
}

[data-theme="dark"] .rel-code,
:root:not([data-theme="light"]) .rel-code {
  color: var(--ub-cyan-hover);
}

.rel-tag {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.rel-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.rel-desc {
  font-size: 0.80rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   8. Pied de Page Institutionnel
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--nav-border);
  background: var(--footer-bg);
  padding: 36px 24px;
  margin-top: 40px;
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--trans-fast);
}

.footer-links a:hover {
  color: var(--ub-cyan);
}

[data-theme="dark"] .footer-links a:hover,
:root:not([data-theme="light"]) .footer-links a:hover {
  color: var(--ub-cyan-hover);
}

/* ==========================================================================
   9. Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.0rem;
  }
  .inst-nav-inner {
    padding: 10px 16px;
  }
  .nav-menu-wrapper {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  .main-nav-links {
    width: 100%;
    justify-content: space-around;
  }
  .team-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .material-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .material-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ==========================================================================
   10. Prévisualisation de Carnets Jupyter & Lecteur Markdown (Bi-Thème)
   ========================================================================== */
.nb-preview-bar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.4);
  padding: 10px 24px;
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

[data-theme="light"] .nb-preview-bar {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: rgba(0, 157, 224, 0.22);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.nb-bar-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.nb-bar-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.nb-logos {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nb-logo-iut {
  height: 30px;
  width: auto;
}

.nb-logo-ub {
  height: 24px;
  width: auto;
}

.nb-divider {
  width: 1px;
  height: 22px;
  background: var(--border-subtle);
}

.nb-bar-title {
  color: var(--text-heading);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.2px;
}

[data-theme="light"] .nb-bar-title {
  color: var(--text-heading);
}

.nb-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--trans-fast);
  line-height: 1.2;
}

.btn-nb-primary {
  background: linear-gradient(135deg, var(--ub-cyan), #0075BF);
  color: #ffffff !important;
  border: none;
  box-shadow: 0 2px 10px rgba(0, 157, 224, 0.3);
}

.btn-nb-primary:hover {
  filter: brightness(1.12);
  box-shadow: 0 4px 18px var(--ub-cyan-glow);
  transform: translateY(-1px);
}

.btn-nb-outline {
  background: var(--badge-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary) !important;
}

.btn-nb-outline:hover {
  background: rgba(0, 157, 224, 0.12);
  border-color: var(--ub-cyan);
  color: var(--ub-cyan) !important;
  transform: translateY(-1px);
}

.nb-preview-footer {
  text-align: center;
  padding: 40px 20px 30px;
  margin-top: 60px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-body);
  background: var(--footer-bg);
}

.nb-footer-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.nb-preview-footer p {
  margin-bottom: 6px;
  font-weight: 500;
}

.nb-footer-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 18px !important;
}

.nb-footer-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

@media print {
  .nb-preview-bar, .nb-preview-footer { display: none !important; }
}

/* Surcharge dynamique du Thème Clair JupyterLab */
[data-theme="light"] body.jp-Notebook,
[data-theme="light"] .jp-Notebook,
body.jp-Notebook[data-jp-theme-light="true"] {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  --jp-layout-color0: #FFFFFF;
  --jp-layout-color1: #F8FAFC;
  --jp-layout-color2: #F1F5F9;
  --jp-layout-color3: #E2E8F0;
  --jp-ui-font-color0: #0F172A;
  --jp-ui-font-color1: #1E293B;
  --jp-ui-font-color2: #334155;
  --jp-ui-font-color3: #64748B;
  --jp-content-font-color0: #0F172A;
  --jp-content-font-color1: #1E293B;
  --jp-content-font-color2: #334155;
  --jp-content-font-color3: #64748B;
  --jp-cell-editor-background: #F1F5F9;
  --jp-cell-editor-border-color: #CBD5E1;
  --jp-border-color0: #E2E8F0;
  --jp-border-color1: #CBD5E1;
  --jp-border-color2: #94A3B8;
  --jp-rendermime-table-row-background: #FFFFFF;
  --jp-rendermime-table-row-alt-background: #F8FAFC;
}

[data-theme="light"] .jp-Cell,
body.jp-Notebook[data-jp-theme-light="true"] .jp-Cell {
  background: transparent !important;
  color: var(--text-primary) !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon {
  color: var(--text-primary) !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon h1,
[data-theme="light"] .jp-RenderedHTMLCommon h2,
[data-theme="light"] .jp-RenderedHTMLCommon h3,
[data-theme="light"] .jp-RenderedHTMLCommon h4,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon h1,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon h2,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon h3,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon h4 {
  color: var(--text-heading) !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon p,
[data-theme="light"] .jp-RenderedHTMLCommon li,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon p,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon li {
  color: var(--text-primary) !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon code,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon code {
  background: rgba(0, 0, 0, 0.05) !important;
  color: #0F172A !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon pre,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon pre {
  background: #F8FAFC !important;
  border: 1px solid #E2E8F0 !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon table,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon table {
  color: var(--text-primary) !important;
  border-collapse: collapse;
}

[data-theme="light"] .jp-RenderedHTMLCommon th,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon th {
  background: #F1F5F9 !important;
  color: var(--text-heading) !important;
  border: 1px solid #CBD5E1 !important;
}

[data-theme="light"] .jp-RenderedHTMLCommon td,
body.jp-Notebook[data-jp-theme-light="true"] .jp-RenderedHTMLCommon td {
  border: 1px solid #E2E8F0 !important;
}

[data-theme="light"] .jp-InputArea-editor,
body.jp-Notebook[data-jp-theme-light="true"] .jp-InputArea-editor {
  background: #F1F5F9 !important;
  border-color: #CBD5E1 !important;
}

[data-theme="light"] .cm-editor,
body.jp-Notebook[data-jp-theme-light="true"] .cm-editor {
  background: #F1F5F9 !important;
  color: #0F172A !important;
}

[data-theme="light"] .cm-scroller,
body.jp-Notebook[data-jp-theme-light="true"] .cm-scroller {
  background: #F1F5F9 !important;
  color: #0F172A !important;
}

[data-theme="light"] .cm-line,
body.jp-Notebook[data-jp-theme-light="true"] .cm-line {
  color: #0F172A !important;
}

[data-theme="light"] .jp-OutputArea-output pre,
body.jp-Notebook[data-jp-theme-light="true"] .jp-OutputArea-output pre {
  background: #F8FAFC !important;
  color: #0F172A !important;
}

[data-theme="light"] .jp-InputPrompt,
body.jp-Notebook[data-jp-theme-light="true"] .jp-InputPrompt {
  color: #0075BF !important;
}

[data-theme="light"] .jp-OutputPrompt,
body.jp-Notebook[data-jp-theme-light="true"] .jp-OutputPrompt {
  color: #D97706 !important;
}

/* Lecteur Markdown */
.reader-container {
  max-width: 960px;
  margin: 30px auto;
  padding: 0 20px;
}

.reader-content {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--card-shadow);
  transition: background var(--trans-smooth), border-color var(--trans-smooth);
}

.reader-content h1, .reader-content h2, .reader-content h3, .reader-content h4 {
  color: var(--text-heading);
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  line-height: 1.3;
}

.reader-content h1 { font-size: 2rem; border-bottom: 1px solid var(--border-subtle); padding-bottom: 10px; }
.reader-content h2 { font-size: 1.45rem; color: var(--ub-cyan); }
.reader-content h3 { font-size: 1.2rem; color: var(--ub-terracotta); }
.reader-content h4 { font-size: 1.05rem; }

.reader-content p {
  margin-bottom: 1.2em;
  color: var(--text-primary);
  line-height: 1.7;
}

.reader-content ul, .reader-content ol {
  margin-top: 0.8em;
  margin-bottom: 1.4em;
  padding-left: 28px;
}

.reader-content li {
  margin-bottom: 0.5em;
  line-height: 1.65;
  color: var(--text-primary);
}

.reader-content pre {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 1.2em 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

[data-theme="light"] .reader-content pre {
  background: #F8FAFC;
  border-color: #CBD5E1;
}

.reader-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 157, 224, 0.12);
  color: var(--ub-cyan);
}

[data-theme="light"] .reader-content code {
  background: rgba(0, 157, 224, 0.08);
  color: #0075BF;
}

.reader-content blockquote {
  border-left: 4px solid var(--ub-cyan);
  padding: 12px 20px;
  margin: 1.4em 0;
  background: rgba(0, 157, 224, 0.08);
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

.reader-content img,
.reader-content figure img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 24px auto;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  box-sizing: border-box;
}

[data-theme="light"] .reader-content img,
[data-theme="light"] .reader-content figure img {
  background: #FFFFFF;
  border-color: rgba(0, 157, 224, 0.22);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
}

.reader-content figure {
  margin: 28px auto;
  text-align: center;
  max-width: 100%;
}

.reader-content figcaption {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-style: italic;
}