/* === Thème 3e (fusionné) === */
/* Variables & palette issues de style-3e-modern.css */
:root{
  --bg:#023133;
  --fg:#e8edf3;
  --muted:#a9b2c3;
  --brand:#023133;
  --brand2:#0AB6BC;
  --accent-yellow:#26F3AD;
  --accent-red:#0AB6BC;
  --accent-blue:#26F3AD;
  --accent-green:#0AB6BC;
  --highlight1:#0AB6BC;
  --highlight2:#26F3AD;
  --glass:rgba(255,255,255,0.08);
  --border:rgba(255,255,255,0.12);
  --shadow:0 10px 30px rgba(0,0,0,0.35);
}

*{ box-sizing:border-box }
html,body{ min-height:100% }
html{ scroll-behavior:smooth; }

/* --- Fond général & typographie --- */
body{
  margin:0;
  font-family: Manrope, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  color:var(--fg);
  /* léger voile + fallback sombre */
  background: radial-gradient(1000px 500px at 50% -20%, rgba(255,255,255,.06), transparent 40%), #0a0a0b;
}

/* === FOND image pleine page : seul le contenu bouge === */
html {
  background: url("./fond5.png") center / cover fixed no-repeat;
  background-color: #0a0a0b; /* fallback */
}
body { background: transparent; }

/* --- Spline en arrière-plan (issu de sequence3eme.html) --- */
#spline-container{ position:fixed; inset:0; z-index:-2; }
#spline-container spline-viewer{
  position:fixed !important; inset:0 !important;
  width:100vw !important; height:100vh !important;
  z-index:-2 !important; pointer-events:none !important;
}


/* */



/* --- Header compact --- */
.site-header{
  position:fixed; top:0; left:0; right:0;
  display:flex; align-items:center; justify-content:flex-start;
  padding:10px 16px; z-index:80;
  backdrop-filter:saturate(140%) blur(8px);
  background: linear-gradient(180deg, rgba(10,10,11,0.65), rgba(10,10,11,0.15) 70%, transparent);
  border-bottom:1px solid var(--border);
}
.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--fg); }
.brand-logo{ width:44px; height:44px; border-radius:50%; box-shadow: var(--shadow); display:block; }
.brand-title{ font-weight:800; letter-spacing:.2px; font-size:18px; color: var(--fg); }

/* --- Conteneur principal --- */
.shell{ position:relative; z-index:45; padding: calc(64px + 12px) clamp(16px, 5vw, 48px) 64px; max-width:1200px; margin:0 auto; }
.reveal-root{ opacity: 0; transform: translateY(10px); transition: opacity .35s ease, transform .35s ease; }
body.is-ready .reveal-root{ opacity: 1; transform: none; }

/* --- Cartes en verre : dimensions IDENTIQUES --- */
.glass{
  background: color-mix(in oklab, var(--glass) 70%, transparent);
  border:1px solid var(--border); border-radius:24px; box-shadow: var(--shadow);
}

/* --- Héro --- */
.hero{ padding:24px; }
.hero-title{
  position: relative; overflow: hidden;
  font-family: Rajdhani, Manrope, sans-serif;
  font-size: clamp(28px, 3.5vw, 48px);
  line-height:1.05; letter-spacing:.5px; margin:6px 0 10px;
  text-shadow:0 1px 0 rgba(0,0,0,0.3);
}
.hero.hero-strong{
  background:
    linear-gradient(180deg, rgba(0,0,0,0.45), rgba(0,0,0,0.25)),
    color-mix(in oklab, var(--glass) 90%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px) saturate(150%);
}
.hero-sub{ color:var(--muted); margin:0 0 8px; font-size: clamp(14px, 1.3vw, 18px); }
.hero-title .reveal-mask{
  position:absolute; inset:0;
  background: linear-gradient(90deg, rgba(10,10,11,0) 0%, rgba(10,10,11,0) 12%, rgba(10,10,11,1) 13%, rgba(10,10,11,1) 87%, rgba(10,10,11,0) 88%, rgba(10,10,11,0) 100%);
  mix-blend-mode: multiply; pointer-events:none; transform: translateX(-110%);
  animation: typebar 1.3s cubic-bezier(.22,.61,.36,1) .2s both;
}
.hero-title .shine{
  position:absolute; inset:0; background: radial-gradient(600px 60px at 0% 50%, rgba(255,255,255,0.25), transparent 70%);
  mix-blend-mode: screen; transform: translateX(-120%); animation: titleshine 2s ease .15s both;
}
@keyframes typebar{ 0%{ transform: translateX(-110%);} 100%{ transform: translateX(110%);} }
@keyframes titleshine{ 0%{ transform: translateX(-120%); opacity: .0;} 20%{ opacity: 1;} 100%{ transform: translateX(120%); opacity:.0;} }

/* --- Breadcrumbs --- */
/* Base lisible (comme activity-style), puis surcharges 3e */
.breadcrumbs{
  margin: 8px 0 10px;
  font-weight: 600;
  color: #000;
}
.breadcrumbs ul{
  margin: 0; padding: 0;
  list-style: none;
  display: inline-flex; gap: 8px; align-items: center;
}
.breadcrumbs a{
  text-decoration: none;
  color: #000;
  background: color-mix(in oklab, var(--glass) 65%, white);
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: 999px;
  padding: 6px 10px;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.breadcrumbs a:hover{ transform: translateY(-1px); border-color: rgba(0,0,0,0.5); }
.breadcrumbs .sep{ opacity:.6; }

/* Accent 3e : séparateur + item courant en vert */
.breadcrumbs .sep,
.breadcrumbs li:last-child{
  color: var(--accent-green) !important;
  font-weight: 600;
}

/* === Gabarit IDENTIQUE à sequence1.html (stack vertical) === */
.cards.stack{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}
.card.block{ position: relative; padding: 18px; }
.card-title{ margin-top:10px; font-size:22px; font-weight:800; }
.card-sub{ color:var(--muted); margin-top:6px; font-weight:600; }

/* Points de couleur */
.traffic{
  position: absolute; top: 10px; right: 12px;
  display:inline-flex; gap:8px; align-items:center;
}
.traffic .dot{
  width:12px; height:12px; border-radius:50%;
  border:1px solid rgba(0,0,0,0.35);
  box-shadow: 0 0 6px rgba(0,0,0,0.25);
}
.traffic .dot.r{ background:#ff4d4f; }
.traffic .dot.o{ background:#ff9800; }
.traffic .dot.g{ background:#1ecb4f; }

/* Boutons (ghost conservés) */
.btn{
  appearance:none; border:0; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center;
  height:44px; padding:0 18px; border-radius:12px;
  font-weight:800; letter-spacing:.2px;
  text-decoration:none; color:var(--fg);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, opacity .2s ease, border-color .2s ease;
}
.btn.ghost{
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
}
.btn:hover{ transform: translateY(-1px); }

/* Liste de boutons + labels à gauche (mêmes tailles) */
.btn-list{
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 10px 0 4px;
}
.btn-item{
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-label{
  color: var(--muted);
  font-weight: 700;
  min-width: 180px;
}
.btn-list .btn{
  width: auto;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  font-weight: 700;
}
@media (max-width: 640px){
  .btn-item{ flex-direction: column; align-items: flex-start; }
  .btn-label{ min-width: 0; }
}

/* Footer */
.site-footer{ position:fixed; bottom:0; width:100%; z-index:45; padding:18px; text-align:center; color:var(--muted); }

/* Focus */
:focus-visible{ outline: 2px solid var(--highlight2); outline-offset: 2px; border-radius: 8px; }

/* --- Bouton "haut de page" (identique) --- */
.btn-top{
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 120;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background:
    radial-gradient(120px 60px at 30% 0%, color-mix(in oklab, var(--brand) 20%, transparent), transparent 60%),
    color-mix(in oklab, var(--glass) 80%, transparent);
  color: var(--fg);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn-top.show{ opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.btn-top:hover{
  transform: translateY(-2px) scale(1.05);
  border-color: color-mix(in oklab, var(--brand2) 40%, var(--border));
  box-shadow: 0 12px 34px rgba(0,0,0,0.45), 0 0 14px rgba(0,0,0,0.18);
}
.btn-top:active{ transform: translateY(0) scale(0.98); }
.btn-top svg{ display:block; filter: drop-shadow(0 0 2px rgba(0,0,0,0.35)); }

/* Responsive */
@media (max-width: 900px){ .cards{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px){
  .brand-title{ display:none; }
  .hero{ padding:16px; }
  .cards{ grid-template-columns: 1fr; }
}



/* === Ajustements demandés (accent vert plus présent) === */

/* 1) Fil d’Ariane : rendre '3e' (3ème <li>) vert comme 'nom de la séquence' */
.breadcrumbs li:nth-child(3){
  color: var(--accent-green) !important;
  font-weight: 600;
}

/* 2) Rendre le vert plus présent globalement */

/* Cartes en verre : liseré légèrement teinté de vert */
.glass{
  border-color: color-mix(in oklab, var(--accent-green) 28%, var(--border));
}

/* Hero : halo/ombre avec un soupçon de vert */
.hero.hero-strong{
  box-shadow:
    var(--shadow),
    0 0 0 1px color-mix(in oklab, var(--accent-green) 40%, transparent),
    0 0 40px color-mix(in oklab, var(--accent-green) 18%, transparent);
}

/* Boutons ghost : bordure et hover tirant vers le vert */
.btn.ghost{
  border-color: color-mix(in oklab, var(--accent-green) 30%, var(--border));
}
.btn.ghost:hover{
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--accent-green) 12%, transparent),
    transparent 60%);
  border-color: color-mix(in oklab, var(--accent-green) 60%, var(--border));
  box-shadow:
    0 10px 30px rgba(0,0,0,0.35),
    0 0 14px color-mix(in oklab, var(--accent-green) 30%, transparent);
}

/* Breadcrumbs : survol en vert pour les liens */
.breadcrumbs a:hover{
  color: var(--accent-green);
  border-color: color-mix(in oklab, var(--accent-green) 50%, rgba(0,0,0,0.2));
  background: color-mix(in oklab, var(--accent-green) 10%, white);
}

/* Bouton retour haut : survol avec bordure/halo verts */
.btn-top:hover{
  border-color: color-mix(in oklab, var(--accent-green) 50%, var(--border));
  box-shadow:
    0 12px 34px rgba(0,0,0,0.45),
    0 0 14px color-mix(in oklab, var(--accent-green) 25%, transparent);
}




/* === Halo renforcé (entête) === */
.hero.hero-strong{
  position: relative;
  isolation: isolate; /* permet au pseudo-élément de briller derrière sans déborder le stacking context */
  /* halo plus présent, tirant vers le vert du thème */
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent-green) 55%, transparent),
    0 0 60px color-mix(in oklab, var(--accent-green) 32%, transparent),
    0 0 120px color-mix(in oklab, var(--accent-green) 18%, transparent),
    var(--shadow);
}
.hero.hero-strong::after{
  content: "";
  position: absolute;
  inset: -10px;              /* n'augmente pas la taille réelle du bloc */
  border-radius: inherit;
  pointer-events: none;
  z-index: -1;
  /* halo doux multicouche (radial + conique) */
  background:
    radial-gradient(140% 120% at 50% -10%,
      color-mix(in oklab, var(--accent-green) 30%, transparent),
      color-mix(in oklab, var(--accent-green) 12%, transparent) 45%,
      transparent 70%),
    conic-gradient(from 0deg at 50% 50%,
      color-mix(in oklab, var(--accent-green) 16%, transparent) 0 25%,
      transparent 25% 50%,
      color-mix(in oklab, var(--accent-green) 16%, transparent) 50% 75%,
      transparent 75% 100%);
  filter: blur(18px);
  opacity: 0.9;
}

/* Optionnel : léger halo sur les cards, discret pour ne pas changer la hiérarchie visuelle */
.card.block{
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent-green) 24%, var(--border)),
    0 0 22px color-mix(in oklab, var(--accent-green) 12%, transparent),
    var(--shadow);
}




/* === Ajustement halo (plus fort mais raisonnable, latéral gauche/droite) === */
.hero.hero-strong{
  /* un peu plus présent que la version initiale, moins que la précédente */
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent-green) 50%, transparent),
    0 0 48px color-mix(in oklab, var(--accent-green) 24%, transparent),
    0 0 90px color-mix(in oklab, var(--accent-green) 12%, transparent),
    var(--shadow);
}

.hero.hero-strong::after{
  content: "";
  position: absolute;
  inset: -8px;               /* n'augmente pas la taille visuelle */
  border-radius: inherit;
  pointer-events: none;
  z-index: -1;
  /* halo placé sur les côtés gauche & droit, pas seulement dans les coins */
  background:
    radial-gradient(60% 120% at -10% 50%,
      color-mix(in oklab, var(--accent-green) 24%, transparent),
      color-mix(in oklab, var(--accent-green) 10%, transparent) 60%,
      transparent 80%),
    radial-gradient(60% 120% at 110% 50%,
      color-mix(in oklab, var(--accent-green) 24%, transparent),
      color-mix(in oklab, var(--accent-green) 10%, transparent) 60%,
      transparent 80%);
  filter: blur(14px);
  opacity: 0.78;
}