/* =================================
   Base & Global Styles
   ================================= */
:root{
  --accent:#2b7cff;
  --dark:#0b1724;
  --muted:#5a6b7a;
  --bg:#f6f8fb;
  --glass: rgba(255,255,255,0.9);
}
html { scroll-behavior: smooth; }
*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  color:var(--dark);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1100px;margin:0 auto;padding:16px}

/* =================================
   Header & Navigation (Shared)
   ================================= */
header{
  background:var(--glass);
  backdrop-filter: blur(6px);
  border-bottom:1px solid #e6eef7;
  position:sticky;
  top:0;
  z-index:10020;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--accent)}
.brand .logo{width:44px;height:44px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#7ab3ff);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;flex:0 0 44px;overflow:hidden}
.brand .logo img{width:100%;height:100%;display:block;object-fit:contain;border-radius:8px}
nav{position:relative; z-index:10015;}

/* Desktop nav */
nav ul{list-style:none;margin:0;padding:0;display:flex;gap:18px;align-items:center; z-index:10016}
nav a{color:var(--dark);text-decoration:none;padding:8px 8px;border-radius:8px;display:inline-block}
nav a:focus{outline:2px solid rgba(43,124,255,0.2);outline-offset:2px}
nav a:hover{background:#b3ceec}

/* CTA Buttons */
.cta{
  background:var(--accent);
  color:#fff;
  padding:8px 12px;
  border-radius:8px;
  text-decoration:none;
  transition: background .18s ease, box-shadow .18s ease;
}
.cta:hover,
.cta:focus,
.cta:focus-visible{
  background:#1558d6;
  box-shadow:0 8px 24px rgba(21,88,214,0.12);
  outline:none;
}
.ctabtn{
    background:#4d73c4; /* Vert */
    color:#fff;
    padding:8px 12px;
    border-radius:8px;
    text-decoration:none;
    transition: background .18s ease, box-shadow .18s ease;
}
.ctabtn:hover,
.ctabtn:focus,
.ctabtn:focus-visible{
    background:#1558d6; /* Bleu au survol/focus */
    box-shadow:0 8px 24px rgba(21,88,214,0.12);
    outline:none;
}

/* Submenu */
.submenu{position:relative}
.submenu-toggle{background:transparent;border:0;color:inherit;padding:8px 8px;border-radius:8px;font:inherit;cursor:pointer}
.submenu-toggle:focus{outline:2px solid rgba(43,124,255,0.15)}
.submenu-list{position:absolute;left:0;top:calc(100% + 8px);background:#fff;border:1px solid #e6eef7;border-radius:8px;padding:8px 0;box-shadow:0 8px 30px rgba(12,40,80,0.08);display:none;min-width:200px;z-index:10100}
.submenu-list a{display:block;padding:8px 14px;color:var(--dark)}
@media (pointer: fine){
  .submenu:hover .submenu-list,
  .submenu:focus-within .submenu-list { display:block; }
}

/* Mobile Nav */
.hamburger{display:none;background:transparent;border:0;font-size:22px;cursor:pointer;line-height:1;padding:6px;border-radius:6px;z-index:10030;touch-action:manipulation}
@media (max-width:900px){
  .hamburger{display:inline-flex;align-items:center;justify-content:center}
  nav ul{
    position:fixed;right:0;top:64px;flex-direction:column;background:#fff;padding:12px;border-left:1px solid #e6eef7;
    box-shadow:-8px 0 30px rgba(12,40,80,0.08);display:none;min-width:230px;height:calc(100vh - 64px);overflow:auto;z-index:10025;
    transition:transform .22s ease,opacity .22s ease;
  }
  nav ul.open{display:flex}
  .submenu-list{position:static;border:none;box-shadow:none;padding-left:8px}
  .submenu-list a{padding-left:22px}
}

/* =================================
   Shared Components
   ================================= */

/* Cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.card{background:#fff;padding:16px;border-radius:12px;box-shadow:0 6px 18px rgba(12,40,80,0.04);position:relative;overflow:hidden}
@media (max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}

/* Flip Card styles */
.card.flip { perspective: 900px; padding:16px; }
.card.flip .card-inner{
  position:relative;
  width:100%;
  height:100%;
  transition: transform .6s cubic-bezier(.2,.9,.3,1);
  transform-style:preserve-3d;
}
.card.flip:hover .card-inner,
.card.flip:focus-within .card-inner{
  transform: rotateY(180deg);
}
.card.flip .card-face{
  position:absolute;
  inset:0;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:16px;
  border-radius:12px;
  box-sizing:border-box;
}
.card.flip .card-front{ background:#fff; z-index:2; text-align:center; }
.card.flip .card-back{
  background: linear-gradient(180deg,#f7fbff,#ffffff);
  transform: rotateY(180deg);
  color:var(--dark);
  text-align:center;
}
.card.flip .card-back h3{ margin:0 0 8px 0; font-size:18px; }
.card.flip .card-back p{ margin:0; color:var(--muted); font-weight:600; }

/* Specific heights for flip cards on different pages */
.cards .card.flip { min-height:140px; } /* index.html */
.cards .card.flip .card-inner { min-height:108px; } /* index.html */
main > .cards .card.flip { min-height:180px; } /* commencer.html */
main > .cards .card.flip .card-inner { min-height:148px; } /* commencer.html */
.card.flip .card-front h3 { font-size: 22px; color: var(--accent); margin: 0 0 8px; }
.card.flip .card-front p { margin: 0; color: var(--muted); }

/* Footer */
footer{padding:24px 0;color:var(--muted);text-align:center;font-size:14px;margin-top:32px;}

/* =================================
   Page: Index
   ================================= */

/* Hero */
.hero{display:flex;gap:20px;align-items:center;padding:36px 0}
.hero h1{margin:0;font-size:28px}
#hero-title{ color: #ffffff;}
#hero-lead{ color: #bbdaf5; font-weight:600; }
.hero p{margin:8px 0 0;color:var(--muted)}
@media (max-width:900px){ .hero{flex-direction:column} }

/* Hero Background */
.hero-background{
  flex:1 1 50%; min-height:240px; border-radius:12px; padding:22px; color:var(--dark);
  display:flex; flex-direction:column; justify-content:center; background-color:#eaf3ff;
  background-image:
    url("../kodikids_bck_hero.PNG"), /* Adjusted path for combined CSS */
    radial-gradient(600px 300px at 10% 20%, rgba(43,124,255,0.12), transparent 20%),
    radial-gradient(500px 240px at 90% 80%, rgba(122,240,179,0.09), transparent 18%),
    linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0.2));
  background-size: cover, 600px 300px, 500px 240px, cover;
  background-position: center, 10% 20%, 90% 80%, center;
  background-repeat: no-repeat;
  box-shadow: 0 6px 18px rgba(12,40,80,0.04);
  overflow:hidden; position:relative;
}
.hero-background::after{
  content:""; position:absolute; left:0;right:0;bottom:0;height:40%; pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,0.0), rgba(255,255,255,0.6));
  border-bottom-left-radius:12px; border-bottom-right-radius:12px;
}

/* Hero Canvas */
.hero-canvas-wrapper{position:relative;min-height:240px;border-radius:12px;overflow:hidden}
.hero-canvas-wrapper canvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0;pointer-events:none;}
.hero-decor-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-overlay{position:relative;z-index:1;padding:18px;display:flex;flex-direction:column;justify-content:center;min-height:240px;pointer-events:auto}
#rotating-title{ transition:opacity .38s ease; display:block; }

/* Carousel */
.carousel { position: relative; overflow: hidden; margin-top: 24px; padding: 0 16px; }
.carousel-track { display: flex; transition: transform 0.4s ease; gap: 16px; }
.carousel-item { flex-shrink: 0; width: 80%; background: #fff; border-radius: 12px; box-shadow: 0 6px 18px rgba(12,40,80,0.04); padding: 16px; text-align: center; }
.carousel-item img { max-width: 100%; border-radius: 8px; margin-bottom: 12px; }
.carousel-item h3 { color: var(--accent); margin: 8px 0; }
.carousel-item p { color: var(--muted); font-size: 14px; }
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%); background: rgba(118, 195, 243, 0.8); backdrop-filter: blur(4px);
  color: var(--dark); border: 1px solid #e6eef7; width: 40px; height: 40px; border-radius: 50%; cursor: pointer;
  transition: all 0.2s ease; z-index: 10; display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.carousel-btn:hover { background: var(--accent); color: #f5f6f8; border-color: var(--accent); }
.carousel-btn.prev { left: -4px; }
.carousel-btn.next { right: -4px; }
@media (min-width: 600px) { .carousel-item { width: calc(50% - 8px); } }
@media (min-width: 900px) { .carousel-item { width: calc(33.333% - 11px); } }

/* Language switcher & Cookie Banner */
.lang-btn { background: transparent; border: 1px solid var(--muted); color: var(--muted); padding: 7px 12px; border-radius: 8px; font-weight: 600; cursor: pointer; }
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; background: rgba(11, 23, 36, 0.95); backdrop-filter: blur(5px);
  color: #f0f4f8; padding: 16px 24px; display: none; align-items: center; justify-content: center;
  gap: 20px; z-index: 11000; font-size: 15px; text-align: center; flex-wrap: wrap;
}
.cookie-banner p { margin: 0; flex-grow: 1; }
.cookie-banner .cookie-accept-btn { background: var(--accent); color: #fff; border: none; padding: 10px 20px; border-radius: 8px; cursor: pointer; font-weight: 600; flex-shrink: 0; }

/* =================================
   Page: Commencer
   ================================= */

/* Page Header */
.page-header { padding: 32px 0; text-align: center; }
.page-header h1 { margin: 0 0 8px; font-size: 32px; }
.page-header p { color: var(--muted); font-size: 18px; max-width: 600px; margin: 0 auto; }

/* Details Section (collapsible) */
.details-section {
  background: #ffffff; border-radius: 12px; box-shadow: 0 8px 24px rgba(12,40,80,0.06);
  margin-top: 40px; opacity: 0; max-height: 0; overflow: hidden; padding: 0 24px;
  transition: all .6s cubic-bezier(.22, .61, .36, 1); border: 1px solid transparent;
}
.details-section:target {
  opacity: 1; max-height: 1000px; padding: 32px 24px; border-color: #e6eef7;
}
.details-section h2 { margin-top: 0; color: var(--accent); text-align: center; }
.details-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.details-options a { text-align: center; padding: 16px; border-radius: 8px; text-decoration: none; }
@media (max-width: 700px) { .details-options { grid-template-columns: 1fr; } }

/* =================================
   Cookie Banner
   ================================= */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(11, 23, 36, 0.95);
  backdrop-filter: blur(5px);
  color: #f0f4f8;
  padding: 16px 24px;
  display: none; /* Hidden by default, shown by JS */
  align-items: center;
  justify-content: center;
  gap: 20px;
  z-index: 11000;
  font-size: 15px;
  text-align: center;
  flex-wrap: wrap;
}
.cookie-banner p { margin: 0; flex-grow: 1; }
.cookie-banner .cookie-accept-btn { background: var(--accent); color: #fff; border: none; padding: 10px 20px; border-radius: 8px; cursor: pointer; font-weight: 600; flex-shrink: 0; }