/**
 * PORTAIL UNIVERSITAIRE GROUPE L'ÉRUDIT (ISCA & I2S)
 * Charte Graphique Inspirée de l'Université Paris 1 Panthéon-Sorbonne
 */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800;900&family=Playfair+Display:ital,wght@0,600;0,700;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Charte Officielle Groupe L'Érudit */
  --color-accent: #ae46ad;          /* Signature Magenta / Orchidée */
  --color-accent-light: #c75ec7;    /* Accent lumineux */
  --color-accent-lighter: #f8e8f8;  /* Teinte très subtile */
  --color-accent-dark: #8c2d8b;     /* Accent profond / actif */
  --color-accent-subtle: rgba(174, 70, 173, 0.08); /* Fond léger badge/carte */
  --color-accent-glow: rgba(174, 70, 173, 0.3);    /* Halo d'élévation */
  
  --color-dark: #0a0a0a;            /* Noir pur obsidian */
  --color-dark-surface: #141414;    /* Surface sombre rehaussée */
  --color-dark-elevated: #1f1f1f;   /* Cartes & modales sombres */
  
  /* Structure & Titres Sémantiques */
  --color-primary: #0a0a0a;         /* Noir profond institutionnel */
  --color-primary-light: #ae46ad;   /* Liens et accents actifs */
  --color-primary-dark: #0a0a0a;    /* Topbar, footer & bannières sombres */
  
  /* Remplacement des tokens gold par l'orchidée #ae46ad */
  --color-gold: #ae46ad;            /* Boutons d'action, liserés, accents */
  --color-gold-light: #d977d9;      /* Texte d'accent sur fond sombre */
  --color-gold-dark: #8c2d8b;       /* Hover sur boutons d'accent */
  
  --color-i2s: #ae46ad;             /* Teinte I2S unifiée */
  --color-isca: #0a0a0a;            /* Teinte ISCA */
  
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-subtle: #f1f5f9;
  
  --color-text: #0a0a0a;
  --color-text-muted: #52525b;
  --color-text-light: #71717a;
  
  --border-color: #e4e4e7;
  --border-color-dark: rgba(255, 255, 255, 0.12);
  
  --font-serif: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --shadow-sm: 0 2px 4px rgba(10, 10, 10, 0.04);
  --shadow-md: 0 8px 24px rgba(10, 10, 10, 0.08);
  --shadow-lg: 0 16px 36px rgba(10, 10, 10, 0.12);
  --shadow-hover: 0 20px 40px rgba(10, 10, 10, 0.16);
  --shadow-glow: 0 0 30px rgba(174, 70, 173, 0.35);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --page-banner-bg: radial-gradient(circle at 80% 20%, #2b112c 0%, #160817 60%, #0a0a0a 100%);
}

/* ==========================================================
   RESET & BASE
   ========================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-gold);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================
   TOP UTILITY BAR (Ruban d'accès direct)
   ========================================================== */
.topbar {
  background-color: var(--color-primary-dark);
  color: #cbd5e1;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 101;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 6px;
  padding-bottom: 6px;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-info a, .topbar-info span {
  color: #cbd5e1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.topbar-info a:hover {
  color: var(--color-gold-light);
}

.topbar-portals {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-badge {
  color: var(--color-gold-light);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(174, 70, 173, 0.45);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* ==========================================================
   NAVIGATION PRINCIPALE (Sorbonne Header)
   ========================================================== */
.site-header {
  background: #ffffff;
  border-bottom: 3px solid var(--color-gold);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(10, 10, 10, 0.06);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  gap: 20px;
}

/* Bloc Logos Officiels */
.header-branding-block {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-principal {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.brand-logo:hover .logo-principal {
  transform: scale(1.02);
}

.header-sublogos {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 12px;
  border-left: 2px solid #e2e8f0;
}

.sublogo-item {
  display: flex;
  align-items: center;
  text-decoration: none;
  border-radius: 4px;
  padding: 2px 4px;
  background: #ffffff;
  border: 1px solid transparent;
  transition: var(--transition);
}

.sublogo-item:hover {
  border-color: var(--color-gold);
  transform: translateY(-1px);
}

.sublogo-item img {
  height: 38px;
  width: auto;
  max-width: 65px;
  object-fit: contain;
  display: block;
}

.sublogo-divider {
  width: 1px;
  height: 28px;
  background: #cbd5e1;
  margin: 0 4px;
}

.sublogo-tutelle img {
  height: 34px;
}

/* Menu de navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-gold-dark);
  background: var(--color-bg-alt);
}

.nav-link i {
  font-size: 0.72rem;
  transition: transform 0.2s ease;
}

.nav-item:hover .nav-link i {
  transform: rotate(180deg);
}

/* Dropdowns Standards & Méga-Menus */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 45px rgba(10, 10, 10, 0.14);
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--color-gold);
  padding: 10px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.dropdown-mega {
  min-width: 540px;
  padding: 0;
}

.dropdown-mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 18px 20px;
}

.dropdown-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dropdown-header {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding-bottom: 6px;
  margin-bottom: 6px;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dropdown-info-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.78rem;
  border: 1px solid var(--border-color);
  margin: 6px 0;
  line-height: 1.6;
  color: var(--color-text);
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.dropdown-item strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.dropdown-item span {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: 2px;
}

.dropdown-item:hover {
  background: var(--color-bg-alt);
}

.dropdown-item:hover strong {
  color: var(--color-gold-dark);
}

.dropdown-item .badge-pill {
  margin-left: 8px;
  font-size: 0.65rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.search-toggle-btn:hover {
  background: var(--color-bg-alt);
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-candidater {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff !important;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-gold);
  box-shadow: 0 4px 12px rgba(174, 70, 173, 0.3);
  transition: var(--transition);
}

.btn-candidater:hover {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
  color: #ffffff !important;
  box-shadow: 0 6px 18px rgba(174, 70, 173, 0.4);
  transform: translateY(-2px);
}

.mobile-toggle-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
}

.mobile-close-btn {
  display: none;
}

/* ==========================================================
   HERO SECTION UNIVERSITAIRE (Sorbonne Grandeur)
   ========================================================== */
.hero-sorbonne {
  position: relative;
  background: 
    linear-gradient(135deg, rgba(10, 10, 10, 0.94) 0%, rgba(28, 11, 29, 0.90) 50%, rgba(10, 10, 10, 0.96) 100%),
    url('../img/hero/campus-nkolondom-batiment.jpg') center center / cover no-repeat;
  color: #ffffff;
  padding: 95px 0 115px;
  overflow: hidden;
  border-bottom: 4px solid var(--color-gold);
}

.hero-sorbonne::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(rgba(174, 70, 173, 0.15) 1px, transparent 1px),
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-sorbonne::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to top, var(--color-bg), transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(174, 70, 173, 0.5);
  color: #f8fafc;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.hero-badge i {
  color: var(--color-gold-light);
}

.hero-title {
  font-size: 3.25rem;
  color: #ffffff;
  margin-bottom: 20px;
  line-height: 1.15;
  letter-spacing: 0.5px;
}

.hero-title span {
  color: var(--color-gold-light);
  font-style: italic;
}

.hero-lead {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 35px;
  max-width: 620px;
  font-weight: 400;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-gold);
  color: var(--color-primary-dark) !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 20px rgba(174, 70, 173, 0.4);
  transition: var(--transition);
}

.btn-hero-primary:hover {
  background: #ffffff;
  color: var(--color-primary) !important;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(255, 255, 255, 0.3);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 26px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-3px);
}

/* Formulaire de recherche rapide de filière dans le Hero */
.hero-finder-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-text);
  position: relative;
}

.hero-finder-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.finder-header {
  margin-bottom: 20px;
}

.finder-title {
  font-size: 1.35rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.finder-title i {
  color: var(--color-gold);
}

.finder-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.finder-form .form-group {
  margin-bottom: 16px;
}

.finder-form label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.finder-form select, .finder-form input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  background: #ffffff;
  color: var(--color-text);
  transition: var(--transition);
}

.finder-form select:focus, .finder-form input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(174, 70, 173, 0.2);
}

.btn-finder-submit {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-finder-submit:hover {
  background: var(--color-primary-light);
  box-shadow: 0 4px 15px rgba(174, 70, 173, 0.35);
}

/* ==========================================================
   BANDEAU PARTENAIRES & 4 PILIERS D'ACCÈS RAPIDE
   ========================================================== */
.hero-partner-strip {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(10, 10, 10, 0.03);
  padding: 24px 0;
  margin-bottom: 60px;
  position: relative;
  z-index: 5;
}

.quick-access-section {
  position: relative;
  z-index: 10;
  margin-top: 0;
  margin-bottom: 70px;
}

.quick-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.quick-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.quick-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.quick-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(174, 70, 173, 0.4);
}

.quick-card:hover::after {
  transform: scaleX(1);
}

.quick-card-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  transition: var(--transition);
}

.quick-card:hover .quick-card-icon {
  background: var(--color-primary);
  color: var(--color-gold);
}

.quick-card-title {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.quick-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  flex-grow: 1;
}

.quick-card-link {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.quick-card:hover .quick-card-link {
  color: var(--color-gold-dark);
}

/* ==========================================================
   SECTIONS GÉNÉRALES
   ========================================================== */
.section {
  padding: 80px 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-dark {
  background-color: var(--color-primary);
  color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  letter-spacing: 2.5px;
  display: inline-block;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.4rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  position: relative;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-gold);
  margin: 14px auto 0;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.section-dark .section-desc {
  color: #cbd5e1;
}

/* ==========================================================
   SECTION DOCUMENTS À LA UNE (Exigence Utilisateur)
   ========================================================== */
.docs-featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.doc-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.doc-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.doc-card-badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: #fef3c7;
  color: #92400e;
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.doc-card-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}

.doc-file-icon {
  font-size: 2.4rem;
  line-height: 1;
}

.icon-pdf { color: #e11d48; }
.icon-word { color: #2563eb; }
.icon-excel { color: #16a34a; }
.icon-zip { color: #d97706; }

.doc-card-title {
  font-size: 1.125rem;
  color: var(--color-primary);
  line-height: 1.35;
}

.doc-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.doc-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.doc-meta {
  font-size: 0.78rem;
  color: var(--color-text-light);
  display: flex;
  flex-direction: column;
}

.doc-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-download-direct {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #ffffff !important;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.btn-download-direct:hover {
  background: var(--color-gold);
  color: var(--color-primary-dark) !important;
  transform: translateY(-2px);
}

.view-all-docs-wrap {
  text-align: center;
  margin-top: 40px;
}

/* ==========================================================
   SECTION INFORMATIONS RÉCENTES (Exigence Utilisateur)
   ========================================================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.news-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(174, 70, 173, 0.35);
}

.news-card-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.news-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.news-card:hover .news-card-img-wrap img {
  transform: scale(1.05);
}

.news-category-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-primary);
  color: var(--color-gold-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
}

.news-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}

.news-card-title {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.35;
}

.news-card-title a {
  color: inherit;
}

.news-card-title a:hover {
  color: var(--color-gold-dark);
}

.news-card-summary {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
  flex-grow: 1;
}

.news-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.news-read-more {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-read-more:hover {
  color: var(--color-gold-dark);
  gap: 10px;
}

/* ==========================================================
   LES DEUX ÉCOLES (ISCA & I2S)
   ========================================================== */
.schools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.school-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.school-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.school-box.isca::before {
  background: linear-gradient(90deg, #0a0a0a, #ae46ad);
}

.school-box.i2s::before {
  background: linear-gradient(90deg, #ae46ad, #c75ec7);
}

.school-box:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.school-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.school-sigle {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-primary-dark);
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(174, 70, 173, 0.3);
}

.school-box.i2s .school-sigle {
  background: #0f766e;
  color: #ffffff;
}

.school-name {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.school-accreditation {
  font-size: 0.8125rem;
  color: #047857;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
}

.school-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.school-features {
  list-style: none;
  margin-bottom: 30px;
}

.school-features li {
  font-size: 0.875rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
}

.school-features li i {
  color: var(--color-gold);
}

.school-actions {
  margin-top: auto;
  display: flex;
  gap: 12px;
}

/* ==========================================================
   CHIFFRES CLÉS & STATISTIQUES ANIMÉES
   ========================================================== */
.stats-bar {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a0b1c 50%, #0a0a0a 100%);
  color: #ffffff;
  padding: 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-gold-light);
  line-height: 1;
  margin-bottom: 10px;
}

.stat-label {
  font-size: 0.95rem;
  color: #cbd5e1;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==========================================================
   DOSSIER D'INSCRIPTION & ACCORDÉON DES 7 PIÈCES
   ========================================================== */
.admission-highlight-box {
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f6 100%);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 50px;
  box-shadow: var(--shadow-md);
}

.admission-steps-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 30px 0;
}

.admission-step-item {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 18px 20px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.admission-step-item:hover {
  border-color: var(--color-gold);
  transform: translateX(4px);
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-gold);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-text {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* ==========================================================
   MÉDIATHÈQUE & GALERIE (Exigence Utilisateur)
   ========================================================== */
.gallery-filter-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 250px;
  cursor: pointer;
  background: #000;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
  opacity: 0.85;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.92) 0%, rgba(174, 70, 173, 0.3) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-title {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.gallery-category {
  color: var(--color-gold-light);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.gallery-zoom-icon {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================
   ESPACE ENTREPRISES & PARTENAIRES
   ========================================================== */
.enterprise-options-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.enterprise-opt-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 30px 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
}

.enterprise-opt-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary-light);
}

.opt-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: #eff6ff;
  color: var(--color-primary-light);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.opt-title {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.opt-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================
   FOOTER SORBONNE
   ========================================================== */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #cbd5e1;
  padding: 80px 0 30px;
  border-top: 4px solid var(--color-gold);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand img {
  height: 55px;
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-contacts-list {
  list-style: none;
  font-size: 0.875rem;
}

.footer-contacts-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #cbd5e1;
}

.footer-contacts-list li i {
  color: var(--color-gold);
  margin-top: 4px;
}

.footer-contacts-list a {
  color: #cbd5e1;
}

.footer-contacts-list a:hover {
  color: var(--color-gold-light);
}

.footer-title {
  font-size: 1.15rem;
  color: #ffffff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background: var(--color-gold);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  transform: translateX(4px);
}

.social-links-group {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: var(--transition);
}

.social-btn:hover {
  background: var(--color-gold);
  color: var(--color-primary-dark);
  transform: translateY(-3px);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: #64748b;
}

.footer-bottom a {
  color: #94a3b8;
}

/* ==========================================================
   MODALE DE RECHERCHE RAPIDE
   ========================================================== */
.search-modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 100px;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.search-modal.open {
  opacity: 1;
  visibility: visible;
}

.search-modal-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 650px;
  padding: 30px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  transform: translateY(-20px);
  transition: transform 0.3s ease;
}

.search-modal.open .search-modal-box {
  transform: translateY(0);
}

.search-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.search-modal-input-wrap {
  position: relative;
  margin-top: 10px;
}

.search-modal-input-wrap input {
  width: 100%;
  padding: 16px 20px 16px 50px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-primary-light);
  font-size: 1.1rem;
  outline: none;
}

.search-modal-input-wrap i {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--color-primary-light);
}

/* ==========================================================
   BADGES & ÉLÉMENTS COMMUNS
   ========================================================== */
.badge-bts { background: #dbeafe; color: #1e40af; }
.badge-hnd { background: #fef3c7; color: #92400e; }
.badge-licence { background: #dcfce7; color: #166534; }
.badge-master { background: #f3e8ff; color: #6b21a8; }
.badge-default { background: #f1f5f9; color: #475569; }

.badge-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary-dark);
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(174, 70, 173, 0.35);
}

.btn-gold {
  background: linear-gradient(135deg, #ae46ad 0%, #8c2d8b 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(174, 70, 173, 0.35);
}

.btn-gold:hover {
  background: linear-gradient(135deg, #c75ec7 0%, #ae46ad 100%);
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(174, 70, 173, 0.45);
}

.btn-outline {
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent) !important;
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(174, 70, 173, 0.3);
}


/* ==========================================================
   BANNIÈRE DE TITRE OFFICIELLE RÉUTILISABLE
   ========================================================== */
.page-banner {
  background: var(--page-banner-bg);
  color: #ffffff;
  padding: 60px 0;
  border-bottom: 3px solid var(--color-accent);
  position: relative;
}

.page-banner-compact {
  padding: 50px 0;
}