/* ═══════════════════════════════════════════════════════════════════
   CHARTE GRAPHIQUE JE-FPA
   Modifiez les couleurs ici — s'applique à tout le site
   ═══════════════════════════════════════════════════════════════════ */
:root {
  --cyan-600:  #0891b2;
  --cyan-700:  #0e7490;
  --cyan-800:  #155e75;
  --cyan-50:   #ecfeff;
  --cyan-100:  #cffafe;
  --cyan-300:  #67e8f9;
  --cyan-light:#f0fdff;
  --purple:    #4f3db5;
  --purple-light: #ede9fe;
  --dark:      #0a1628;
  --dark-2:    #1a2332;
  --text:      #3D4F65;
  --text-light:#5A6B82;
  --text-muted:#6B7C93;
  --text-faint:#8896A6;
  --gray-bg:   #F8FAFD;
  --border:    #E8EDF4;
  --green:     #059669;
  --orange:    #D97706;
  --red:       #DC2626;
  --white:     #ffffff;
  --radius:    16px;
  --radius-sm: 12px;
  --radius-xs: 10px;
  --shadow:    0 10px 40px rgba(8,145,178,0.07);
  --shadow-hover: 0 20px 60px rgba(8,145,178,0.12);
  --font-display: 'Outfit', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--gray-bg); color: var(--dark-2); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* Accessibilité — focus visible */
:focus-visible { outline: 3px solid var(--cyan-600); outline-offset: 2px; border-radius: 4px; }
.skip-link { position: absolute; top: -100px; left: 8px; background: var(--cyan-700); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 9999; transition: top .2s; }
.skip-link:focus { top: 8px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ═══ ANIMATIONS ═══ */
@keyframes fadeUp { from { opacity:0; transform:translateY(30px) } to { opacity:1; transform:translateY(0) } }
@keyframes fadeIn { from { opacity:0 } to { opacity:1 } }
@keyframes float  { 0%,100% { transform:translateY(0) } 50% { transform:translateY(-12px) } }

.fade-up    { animation: fadeUp .7s ease-out both; }
.fade-up-d1 { animation-delay: .1s; }
.fade-up-d2 { animation-delay: .2s; }
.fade-up-d3 { animation-delay: .3s; }
.fade-up-d4 { animation-delay: .4s; }
.fade-up-d5 { animation-delay: .5s; }

/* ═══ LAYOUT ═══ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 100px 0; }
.section-white { background: var(--white); }
.section-gray  { background: var(--gray-bg); }

@media (max-width: 700px) { .section { padding: 64px 0; } }

/* ═══ COMPOSANTS ═══ */
.tag { display: inline-block; padding: 5px 14px; border-radius: 20px; font-size: 11px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; background: var(--cyan-50); color: var(--cyan-700); border: 1px solid var(--cyan-100); }

.section-header { text-align: center; margin-bottom: 56px; }
.section-title  { font-family: var(--font-display); font-weight: 800; font-size: clamp(28px,5vw,42px); color: var(--dark); line-height: 1.15; margin-top: 14px; }
.section-sub    { font-size: 16px; color: var(--text-light); line-height: 1.7; max-width: 580px; margin: 14px auto 0; }
.section-title .grad { background:linear-gradient(135deg,var(--cyan-600),var(--purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }

.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--cyan-600), var(--cyan-700)); color: #fff; border: none; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; transition: all .3s; cursor: pointer; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(8,145,178,.35); }

.btn-outline { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--cyan-700); border: 2px solid var(--cyan-600); padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; transition: all .3s; cursor: pointer; }
.btn-outline:hover { background: var(--cyan-600); color: #fff; transform: translateY(-2px); }

.card { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); transition: all .4s cubic-bezier(.25,.46,.45,.94); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--cyan-100); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px,1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 20px; }

/* ═══ NAVBAR ═══ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.88); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232,237,244,.8); transition: all .3s;
}
.navbar.scrolled { background: rgba(255,255,255,.97); box-shadow: 0 4px 30px rgba(0,0,0,.05); }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.navbar-logo  { display: flex; align-items: center; gap: 10px; }
.logo-img     { width: 44px; height: 44px; object-fit: contain; border-radius: 8px; }
.logo-text-main { font-family: var(--font-display); font-weight: 800; font-size: 17px; color: var(--dark); line-height: 1.1; }
.logo-text-sub  { font-size: 10.5px; color: var(--text-muted); font-weight: 500; }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-link { position: relative; color: #4A5568; font-weight: 500; font-size: 13px; cursor: pointer; padding: 8px 0; transition: color .3s; text-transform: uppercase; letter-spacing: .5px; background: none; border: none; }
.nav-link:hover, .nav-link.active { color: var(--cyan-600); }
.nav-link.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--cyan-600); border-radius: 2px; }
.nav-cta { padding: 10px 20px !important; font-size: 13px !important; margin-left: 6px; }
.mobile-toggle { display: none; background: none; border: none; padding: 8px; }

@media (max-width: 900px) {
  .mobile-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px; gap: 16px; box-shadow: 0 20px 40px rgba(0,0,0,.1); border-radius: 0 0 16px 16px; }
  .nav-links.open { display: flex; }
  .nav-link { width: 100%; padding: 10px 0; }
}

/* ═══ PAGE HERO (sous-pages) ═══ */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(160deg, #f0fdff 0%, #ffffff 60%, #f8fafd 100%);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(8,145,178,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(8,145,178,.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero-content { position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.breadcrumb a { color: var(--cyan-600); font-weight: 600; }
.breadcrumb span { color: var(--text-faint); }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(32px,5vw,52px); font-weight: 900; color: var(--dark); line-height: 1.1; margin-bottom: 20px; margin-top: 14px; }
.page-hero h1 .grad { background: linear-gradient(135deg, var(--cyan-600), var(--purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero p { font-size: 18px; color: var(--text-light); line-height: 1.75; max-width: 600px; }

/* ═══ CTA BANNER ═══ */
.cta-banner {
  padding: 48px 40px; border-radius: 20px;
  background: linear-gradient(135deg, var(--cyan-700), var(--purple));
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px;
  position: relative; overflow: hidden;
}
.cta-banner::before { content: ''; position: absolute; top: -50%; right: -5%; width: 280px; height: 280px; background: rgba(255,255,255,.04); border-radius: 50%; }
.cta-banner h3 { font-family: var(--font-display); color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.cta-banner p  { color: rgba(255,255,255,.75); font-size: 15px; }
.cta-banner .btn-white { background: #fff; color: var(--cyan-700); border: none; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 700; font-size: 15px; cursor: pointer; transition: all .3s; text-decoration: none; display: inline-block; }
.cta-banner .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,.2); }

/* ═══ FOOTER ═══ */
.footer { background: var(--dark); color: #fff; padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo img { width: 38px; height: 38px; object-fit: contain; border-radius: 6px; background: rgba(255,255,255,.05); }
.footer-desc { color: rgba(255,255,255,.5); font-size: 13px; line-height: 1.7; }
.footer-heading { font-weight: 700; font-size: 14px; margin-bottom: 16px; color: rgba(255,255,255,.9); }
.footer-link { color: rgba(255,255,255,.45); font-size: 13px; display: block; margin-bottom: 10px; transition: color .3s; cursor: pointer; }
.footer-link:hover { color: rgba(255,255,255,.85); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-copy { color: rgba(255,255,255,.3); font-size: 12px; }

/* ═══ FORMULAIRE ═══ */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 14px 18px; border: 2px solid var(--border); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; transition: all .3s; background: #FAFBFD; outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--cyan-600); background: #fff; box-shadow: 0 0 0 4px rgba(8,145,178,.09); }
.form-textarea { resize: vertical; min-height: 140px; }
.form-success { padding: 16px; background: #ECFDF5; border: 1px solid #6EE7B7; color: #065F46; border-radius: var(--radius-sm); margin-bottom: 16px; display: none; }
.form-success.show { display: block; }

/* Honeypot anti-spam (caché) */
.honeypot { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

/* ═══ RESSOURCES (page) ═══ */
.resource-block { margin-bottom: 56px; }
.resource-semester { font-family: var(--font-display); font-weight: 800; font-size: 24px; color: var(--dark); margin-bottom: 24px; padding-bottom: 12px; border-bottom: 2px solid var(--cyan-100); }
.course-card { padding: 24px; display: block; }
.course-code { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--cyan-600); margin-bottom: 8px; letter-spacing: .5px; }
.course-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--dark); margin-bottom: 16px; line-height: 1.3; }
.course-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-muted); }

/* ═══ CONTACT (page) ═══ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info-card { padding: 32px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid var(--border); }
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--cyan-50); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; border: 1px solid var(--cyan-100); }
.contact-info-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; font-weight: 600; margin-bottom: 4px; }
.contact-info-value { color: var(--dark); font-weight: 500; font-size: 15px; word-break: break-word; }
.contact-info-value a { color: var(--cyan-700); }
.contact-info-value a:hover { text-decoration: underline; }

/* ═══════════════════════════════════════════════════════
   NOUVEAUX COMPOSANTS v2
   ═══════════════════════════════════════════════════════ */

/* ── Filtre catégories articles ── */
.cat-filters { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:40px; justify-content:center; }
.cat-filter { padding:8px 20px; border-radius:30px; font-weight:600; font-size:13px; border:2px solid var(--border); background:var(--white); color:var(--text-muted); cursor:pointer; transition:all .25s; }
.cat-filter:hover  { border-color:var(--cyan-600); color:var(--cyan-600); }
.cat-filter.active { background:var(--cyan-600); color:#fff; border-color:var(--cyan-600); }

/* ── Événements ── */
.event-card { padding:24px; display:flex; gap:20px; align-items:flex-start; }
@media (max-width:500px) { .event-card { flex-direction:column; gap:12px; } }
.event-date-badge { display:flex; flex-direction:column; align-items:center; justify-content:center; background:var(--cyan-light); border:1px solid var(--cyan-100); border-radius:12px; padding:12px 14px; min-width:56px; text-align:center; flex-shrink:0; }
.event-day   { font-family:var(--font-mono); font-weight:700; font-size:22px; color:var(--cyan-700); line-height:1; }
.event-month { font-size:11px; color:var(--cyan-600); font-weight:600; text-transform:uppercase; margin-top:4px; }
.event-body  { flex:1; }
.event-type  { display:inline-block; font-size:11px; font-weight:700; padding:3px 10px; border-radius:20px; margin-bottom:8px; }
.event-title { font-family:var(--font-display); font-weight:700; font-size:17px; color:var(--dark); margin-bottom:6px; line-height:1.3; }
.event-meta  { font-size:13px; color:var(--text-muted); margin-bottom:8px; }
.event-desc  { font-size:13px; color:var(--text-light); line-height:1.6; margin-bottom:10px; }
.event-link  { font-size:13px; font-weight:600; color:var(--cyan-600); }

.event-card-mini { padding:16px 20px; display:flex; gap:16px; align-items:center; }
.event-date-mini { font-family:var(--font-mono); font-size:12px; font-weight:600; color:var(--cyan-700); background:var(--cyan-light); padding:6px 10px; border-radius:8px; white-space:nowrap; flex-shrink:0; }

/* ── Projets ── */
.project-card  { padding:28px; }
.project-header{ display:flex; align-items:center; justify-content:space-between; margin-bottom:12px; }
.project-type  { font-size:11px; font-weight:700; padding:4px 10px; border-radius:20px; background:var(--cyan-50); color:var(--cyan-700); border:1px solid var(--cyan-100); }
.project-year  { font-family:var(--font-mono); font-size:12px; color:var(--text-faint); font-weight:600; }
.project-title { font-family:var(--font-display); font-weight:700; font-size:18px; color:var(--dark); margin-bottom:6px; line-height:1.3; }
.project-sector{ font-size:13px; color:var(--cyan-600); font-weight:600; margin-bottom:10px; }
.project-desc  { font-size:14px; color:var(--text-light); line-height:1.65; margin-bottom:14px; }
.project-tags  { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:14px; }
.project-result{ font-size:13px; font-weight:600; color:var(--green); background:#ECFDF5; padding:8px 14px; border-radius:8px; }

/* ── Ressources onglets ── */
.tabs { display:flex; gap:12px; justify-content:center; margin-bottom:32px; flex-wrap:wrap; }
.tab-btn { padding:10px 28px; border-radius:var(--radius-xs); font-weight:600; font-size:14px; transition:all .3s; border:2px solid var(--border); background:var(--white); color:#4A5568; cursor:pointer; }
.tab-btn:hover  { border-color:var(--cyan-600); color:var(--cyan-600); }
.tab-btn.active { background:var(--cyan-600); color:#fff; border-color:var(--cyan-600); }

.grid-courses      { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:20px; }
.course-header     { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.course-code-icon  { width:44px; height:44px; border-radius:10px; background:var(--cyan-light); display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-size:11px; font-weight:600; color:var(--cyan-700); flex-shrink:0; border:1px solid var(--cyan-100); }
.course-name-full  { font-family:var(--font-display); font-weight:700; font-size:15px; color:var(--dark); }
.course-code-text  { font-size:12px; color:var(--text-faint); font-family:var(--font-mono); }
.course-stats-row  { display:flex; gap:12px; }
.course-stat-box   { flex:1; padding:12px 16px; background:var(--gray-bg); border-radius:var(--radius-xs); text-align:center; }
.course-stat-num   { font-family:var(--font-mono); font-weight:700; font-size:20px; line-height:1; }
.course-stat-lbl   { font-size:11px; color:var(--text-muted); font-weight:600; margin-top:4px; }
.course-dl-btn     { display:block; width:100%; margin-top:16px; padding:10px; border:2px solid var(--border); border-radius:var(--radius-xs); background:#fff; font-weight:600; font-size:13px; color:var(--cyan-700); transition:all .3s; cursor:pointer; text-align:center; text-decoration:none; }
.course-dl-btn:hover { border-color:var(--cyan-600); background:var(--cyan-50); }

/* ── Bouton retour en haut ── */
#backToTop {
  position:fixed; bottom:28px; right:28px; z-index:500;
  width:44px; height:44px; border-radius:50%;
  background:linear-gradient(135deg,var(--cyan-600),var(--cyan-700));
  color:#fff; border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 20px rgba(8,145,178,.35);
  opacity:0; pointer-events:none;
  transition:opacity .3s, transform .3s;
  transform:translateY(12px);
  font-size:18px;
}
#backToTop.visible { opacity:1; pointer-events:auto; transform:translateY(0); }
#backToTop:hover   { transform:translateY(-2px); box-shadow:0 8px 28px rgba(8,145,178,.45); }