:root {
  --bg: #ffffff;
  --surface: #f6f8fa;
  --text: #04293a;
  --muted: #55616e;
  --primary: #00b4d8;
  --accent: #003049;
  --card: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 10px 25px rgba(0,0,0,0.06);
}

html[data-theme='dark'] {
  --bg: #0b1220;
  --surface: #0f172a;
  --text: #e6eef6;
  --muted: #a7b3c2;
  --primary: #00b4d8;
  --accent: #5bb5ff;
  --card: #0f172a;
  --border: #1f2937;
  --shadow: 0 10px 25px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1rem; }

/* Header */
header.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--bg), transparent 0%);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(150%) blur(8px);
}
.nav { display: flex; justify-content: space-between; align-items: center; padding: .8rem 0; }
.logo { font-weight: 800; font-size: 1.3rem; color: var(--accent); text-decoration: none; letter-spacing: .2px; }
.logo span { color: var(--primary); }
.logo small { font-weight: 600; font-size: .9rem; margin-left: .3rem; color: var(--muted); }

.menu ul { display: flex; gap: 1rem; list-style: none; margin: 0; padding: 0; }
.menu a { color: var(--text); text-decoration: none; padding: .4rem .6rem; border-radius: 10px; }
.menu a:hover { background: var(--surface); }
.menu-toggle { display: none; }

.theme-toggle { border: 1px solid var(--border); background: var(--card); padding: .4rem .6rem; border-radius: 10px; box-shadow: var(--shadow); cursor: pointer; }

/* Hero */
.hero { 
  position: relative; 
  padding: 5rem 0; 
  background: radial-gradient(1200px 600px at 10% -10%, color-mix(in oklab, var(--accent), transparent 30%), transparent 70%), 
              linear-gradient(180deg, var(--surface), transparent 30%);
  overflow: clip;
}
.hero::before {
  content: "";
  position: absolute; inset: -10% -10% auto -10%;
  height: 50%; 
  background: radial-gradient(800px 300px at 70% 30%, color-mix(in oklab, var(--primary), white 60%), transparent 60%);
  filter: blur(40px);
  opacity: .35;
  pointer-events: none;
}
.hero-text { animation: fadeUp .8s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px);} to { opacity:1; transform:none;} }
.hero-grid { display: grid; gap: 2rem; grid-template-columns: 1.2fr .8fr; align-items: center; }
.hero-text h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 .8rem; }
.highlight { color: var(--primary); }
.hero-text p { color: var(--muted); max-width: 52ch; }

.btn { display: inline-block; padding: .8rem 1.1rem; border-radius: 12px; border: 1px solid var(--border); text-decoration: none; font-weight: 600; transition: transform .15s ease, box-shadow .2s ease, background .2s; }
.btn.small { padding: .5rem .8rem; }
.btn.primary { background: var(--accent); color: #fff; border-color: transparent; }
.btn.primary:hover { transform: translateY(-2px); box-shadow: var(--shadow); filter: brightness(1.03);}
.btn.ghost { background: transparent; }
.btn.ghost:hover { background: var(--surface); }

.badges { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .5rem 1rem; padding: 0; margin: 1rem 0 0; list-style: none; color: var(--muted); }
.hero-visual img { width: 100%; border-radius: 20px; box-shadow: var(--shadow); background: var(--card); }

/* Sections */
.section { padding: 4rem 0; }
.section.alt { background: var(--surface); }
.section-head h2 { font-size: 1.8rem; margin: 0; }
.section-head p { color: var(--muted); margin: .4rem 0 0; }

.cards { margin-top: 1.2rem; display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 1.1rem; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 16px 30px rgba(0,0,0,.08); }
.card h3 { margin: .2rem 0 .6rem; font-size: 1.1rem; }

/* Equipement */
.equip-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; margin-top: 1.2rem; }
.equip { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 1rem; text-align: left; box-shadow: var(--shadow); }
.equip .icon { font-size: 1.6rem; }

/* Split */
.split { display: grid; grid-template-columns: 1.3fr .7fr; gap: 2rem; align-items: start; }
.stat-block { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: .6rem; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: .9rem; text-align: center; box-shadow: var(--shadow); }
.stat span { display: block; font-weight: 800; font-size: 1.1rem; }
.stat small { color: var(--muted); }

/* Gallery */
.gallery { margin-top: 1.2rem; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.gallery figure { margin: 0; background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.gallery img { width: 100%; height: 180px; object-fit: cover; display: block; transition: transform .3s ease; }
.gallery figure:hover img { transform: scale(1.03); }
.gallery figcaption { padding: .6rem .8rem; color: var(--muted); font-size: .95rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 1.5rem; align-items: start; }
.contact-form { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 1rem; box-shadow: var(--shadow); }
.contact-form label { display: grid; gap: .4rem; margin: .6rem 0; font-weight: 600; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%; padding: .8rem .9rem; border-radius: 12px; border: 1px solid var(--border); background: var(--bg); color: var(--text);
}
.checkbox { display: flex; align-items: center; gap: .6rem; font-weight: normal; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center; padding: 1.4rem 0; }
footer .logo { font-size: 1.1rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .equip-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .menu ul { display: none; }
  .menu-toggle { display: inline-block; border: 1px solid var(--border); background: var(--card); padding: .4rem .6rem; border-radius: 10px; }
  .menu.open ul { display: flex; flex-direction: column; position: absolute; right: 1rem; top: 60px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: .6rem; box-shadow: var(--shadow); }
  .menu.open ul a { padding: .6rem .8rem; }
}

@media (max-width: 520px) {
  .badges { grid-template-columns: 1fr; }
  .equip-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
}


/* Modern Footer */
.footer-modern {
  background-color: #002238;
  color: #f1f1f1;
  padding: 2rem 1rem;
  font-size: 0.95rem;
}
.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-left {
  flex: 1 1 250px;
}
.footer-logo {
  width: 140px;
  margin-bottom: 0.5rem;
}
.footer-right {
  flex: 1 1 250px;
  text-align: right;
}
.footer-right a {
  color: #00b4d8;
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer-right a:hover {
  color: #90e0ef;
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 1.5rem;
  text-align: center;
  padding-top: 1rem;
  font-size: 0.85rem;
  opacity: 0.8;
}
@media (max-width: 700px) {
  .footer-container { flex-direction: column; text-align: center; }
  .footer-right { text-align: center; }
}