/* ========================================
   ISAD PORT - Stylesheet
   Version: 4.0 | Structure: BEM + Variables + A11y + Design Logo
   ======================================== */

/* ---- THEME VARIABLES (Basé sur Logo ISAD PORT) ---- */
:root {
  /* Fonds et surfaces */
  --bg: #f4f7f9; 
  --surface: #ffffff;
  --surface-2: #e9edf2;

  /* Textes */
  --text: #0c182b; 
  --muted: #4e637d; 

  /* Couleurs de marque : NAVY (ISAD & Bateau) */
  --primary: #112340; 
  --primary-2: #1a3663; 
  --primary-3: #081121; 
  --primary-light: #e3edf7;
  
  /* Couleurs d'accentuation : ORANGE (PORT & Conteneurs) */
  --accent: #F37A1F;
  --accent-2: #d96611;
  
  /* Couleur secondaire : CYAN (Vagues de l'eau) */
  --cyan: #1ca3e3;
  --cyan-dark: #137AAB;
  
  --line: #cdd6e0;

  /* Ombres et lueurs (Glow) */
  --glow: rgba(17, 35, 64, 0.1);
  --glow-accent: rgba(243, 122, 31, 0.25);
  --glow-cyan: rgba(28, 163, 227, 0.2);

  --notice-bg: linear-gradient(145deg, #eef5ea, #e0ebd9);
  --notice-border: #b8dcc4;
  --notice-text: #1a6b3a;
  
  --input-focus-bg: #fff;
  
  --hero-badge-bg: rgba(255, 255, 255, 0.95);
  --hero-badge-text: var(--text);
  --hero-badge-border: rgba(17, 35, 64, 0.15);
  
  --sh-xs: 0 1px 4px rgba(17, 35, 64, 0.06);
  --sh-sm: 0 4px 20px rgba(17, 35, 64, 0.08);
  --sh: 0 20px 60px rgba(17, 35, 64, 0.12);
  --sh-lg: 0 40px 80px rgba(17, 35, 64, 0.18);
  
  --r-sm: 14px; --r: 24px; --r-lg: 32px;
  --ease: .35s cubic-bezier(.4,0,.2,1);
  --ease-out: .8s cubic-bezier(.19,1,.22,1);
  --ease-spring: .6s cubic-bezier(.34,1.56,.64,1);
  --container: 1220px;
}

[data-theme="dark"] {
  /* Fonds profonds */
  --bg: #050a12; 
  --surface: #0a1324;
  --surface-2: #111f38;
  
  --text: #e6eef5;
  --muted: #859bb3;

  /* En mode sombre, le Cyan devient plus visible que le Navy */
  --primary: #1ca3e3; 
  --primary-2: #137AAB; 
  --primary-3: #0a4866;
  --primary-light: #152745; 

  --accent: #F37A1F;
  --accent-2: #ff913d; 
  --cyan: #1ca3e3;

  --line: #1c304d;
  
  --glow: rgba(28, 163, 227, 0.15);
  --glow-accent: rgba(243, 122, 31, 0.25);
  --glow-cyan: rgba(28, 163, 227, 0.2);

  --notice-bg: linear-gradient(145deg, #0a2012, #07170d);
  --notice-border: #1a4a2a; 
  --notice-text: #4dc770;
  
  --input-focus-bg: #0a1324;
  
  --hero-badge-bg: rgba(10, 19, 36, 0.92);
  --hero-badge-text: #e6eef5;
  --hero-badge-border: rgba(28, 163, 227, 0.2);
  
  --sh-xs: 0 1px 4px rgba(0,0,0,.3);
  --sh-sm: 0 4px 20px rgba(0,0,0,.4);
  --sh: 0 20px 60px rgba(0,0,0,.5);
  --sh-lg: 0 40px 80px rgba(0,0,0,.6);
}

/* ---- RESET & BASE ---- */
*,*::before,*::after {
  box-sizing:border-box; margin:0; padding:0;
  transition:background-color .5s var(--ease),border-color .5s var(--ease),color .4s var(--ease),box-shadow .5s var(--ease);
}
html { scroll-behavior:smooth; font-size:100%; } /* Base 16px par défaut */
body { font-family:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif; background:var(--bg); color:var(--text); line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden; font-size: 1rem; }
img { max-width:100%; display:block; }
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
::selection { background:var(--cyan); color:#fff; }

/* ---- LAYOUT ---- */
.container { width:min(92%,var(--container)); margin:0 auto; }
section { padding:110px 0; }

/* ---- ANIMATIONS ---- */
@keyframes ld-spin { to { transform:rotate(360deg); } }
@keyframes pulse-glow { 0%,100% { transform:scale(1); opacity:1; } 50% { transform:scale(1.15); opacity:.7; } }
@keyframes orb-float { 0%,100% { transform:translate(0,0) scale(1); } 25% { transform:translate(20px,-30px) scale(1.1); } 50% { transform:translate(-10px,20px) scale(.95); } 75% { transform:translate(15px,10px) scale(1.05); } }
@keyframes pulse-dot { 0%,100% { box-shadow:0 0 12px var(--cyan),0 0 24px var(--glow-cyan); } 50% { box-shadow:0 0 20px var(--cyan),0 0 40px var(--glow-cyan); } }
@keyframes float-circle { 0%,100% { transform:translate(0,0); } 50% { transform:translate(-15px,10px); } }

/* ---- SCROLL REVEAL ---- */
.an { opacity:0; transform:translateY(50px) scale(.97); transition:opacity .9s var(--ease-out),transform .9s var(--ease-out); }
.an.d1 { transition-delay:.1s; } .an.d2 { transition-delay:.22s; } .an.d3 { transition-delay:.34s; } .an.d4 { transition-delay:.46s; }
.an.vis { opacity:1; transform:none; }
.an-left { opacity:0; transform:translateX(-60px); transition:opacity .9s var(--ease-out),transform .9s var(--ease-out); }
.an-left.vis { opacity:1; transform:none; }
.stagger-children > * { opacity:0; transform:translateY(40px); }
.stagger-children.vis > * { opacity:1; transform:none; transition:opacity .7s var(--ease-out),transform .7s var(--ease-out); }
.stagger-children.vis > *:nth-child(1) { transition-delay:.05s; }
.stagger-children.vis > *:nth-child(2) { transition-delay:.12s; }
.stagger-children.vis > *:nth-child(3) { transition-delay:.19s; }
.stagger-children.vis > *:nth-child(4) { transition-delay:.26s; }

/* ---- LOADER ---- */
.loader { position:fixed; inset:0; z-index:9999; background:var(--text); display:flex; align-items:center; justify-content:center; flex-direction:column; gap:20px; transition:opacity .6s ease,visibility .6s ease; }
.loader--done { opacity:0; visibility:hidden; }
.loader__ring { width:50px; height:50px; border:3px solid var(--glow-cyan); border-top-color:var(--cyan); border-radius:50%; animation:ld-spin .9s linear infinite; }
.loader__text { color:rgba(255,255,255,.4); font-size:0.75rem; font-weight:700; letter-spacing:.2em; text-transform:uppercase; }

/* ---- CURSOR GLOW (GPU Accelerated) ---- */
.cursor-glow { 
  position:fixed; inset:0; pointer-events:none; z-index:0; opacity:0; transition:opacity .6s; 
  --x: 50vw; --y: 50vh; 
}
.cursor-glow--active { opacity:1; }
.cursor-glow::before { 
  content:""; position:absolute; width:500px; height:500px; border-radius:50%; 
  background:radial-gradient(circle, var(--glow-cyan), transparent 70%); 
  top: 0; left: 0;
  transform: translate3d(calc(var(--x) - 50%), calc(var(--y) - 50%), 0);
  will-change: transform; 
}

/* ========================================
   COMPONENTS
   ======================================== */

/* ---- THEME TOGGLE ---- */
.theme-toggle { width:44px; height:44px; border-radius:12px; border:none; background:transparent; cursor:pointer; display:grid; place-items:center; color:var(--muted); position:relative; overflow:hidden; flex-shrink:0; }
.theme-toggle:hover { background:var(--primary-light); color:var(--cyan); }
.theme-toggle__icon { position:absolute; transition:all .5s var(--ease-spring); }
.theme-toggle__icon--sun { width:22px; height:22px; opacity:1; transform:rotate(0deg) scale(1); }
.theme-toggle__icon--moon { width:20px; height:20px; opacity:0; transform:rotate(-90deg) scale(.5); }
[data-theme="dark"] .theme-toggle__icon--sun { opacity:0; transform:rotate(90deg) scale(.5); }
[data-theme="dark"] .theme-toggle__icon--moon { opacity:1; transform:rotate(0deg) scale(1); }

/* ---- BUTTONS ---- */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:13px 26px; border-radius:999px; font-weight:700; font-size:0.875rem; font-family:inherit; cursor:pointer; border:none; line-height:1; position:relative; overflow:hidden; }
.btn::before { content:""; position:absolute; inset:0; background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent); transform:translateX(-100%); transition:transform .6s; }
.btn:hover::before { transform:translateX(100%); }
.btn:active { transform:scale(.96); }
.btn:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }

/* Bouton principal : Orange vibrant */
.btn--primary { background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; box-shadow:0 6px 28px var(--glow-accent); }
[data-theme="dark"] .btn--primary { box-shadow:0 6px 28px rgba(243, 122, 31, 0.3); }
.btn--primary:hover { transform:translateY(-3px); box-shadow:0 12px 36px var(--glow-accent); }

/* Bouton secondaire */
.btn--white { background:var(--surface); color:var(--text); border:1.5px solid var(--line); box-shadow:var(--sh-sm); }
.btn--white:hover { background:var(--primary-light); border-color:var(--cyan); color:var(--cyan); transform:translateY(-2px); }

.btn--glass { background:rgba(255,255,255,.1); color:#fff; border:1.5px solid rgba(255,255,255,.25); backdrop-filter:blur(10px); }
.btn--glass:hover { background:rgba(255,255,255,.2); transform:translateY(-2px); }

/* ---- TAGS ---- */
.tag { background:linear-gradient(145deg,var(--primary-light),rgba(28, 163, 227, 0.08)); border:1px solid rgba(28, 163, 227, 0.1); color:var(--primary-2); padding:6px 14px; border-radius:999px; font-size:0.75rem; font-weight:700; transition:all .3s; cursor:default; }
[data-theme="dark"] .tag { color:var(--cyan); }
.tag:hover { transform:translateY(-2px); box-shadow:0 4px 12px var(--glow-cyan); }

/* ---- CARD ---- */
.card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r); padding:36px; box-shadow:var(--sh-xs); position:relative; overflow:hidden; }
.card::before { content:""; position:absolute; bottom:0; left:0; right:0; height:3px; background:linear-gradient(90deg,var(--primary),var(--cyan)); transform:scaleX(0); transform-origin:left; transition:transform .5s var(--ease-out); }
.card:hover { box-shadow:var(--sh); transform:translateY(-6px); }
.card:hover::before { transform:scaleX(1); }
.card__title { font-size:1.5rem; font-weight:800; margin-bottom:14px; letter-spacing:-.02em; }
.card__text { color:var(--muted); font-size:0.96875rem; line-height:1.75; }
.card__list { margin-top:22px; display:grid; gap:13px; }
.card__list-item { display:flex; align-items:flex-start; gap:12px; color:var(--muted); font-size:0.9375rem; transition:transform .3s; }
.card__list-item:hover { transform:translateX(4px); }
.card__list-item::before { content:"\2713"; flex-shrink:0; width:24px; height:24px; border-radius:50%; background:linear-gradient(145deg,var(--primary-light),rgba(28, 163, 227, 0.1)); color:var(--cyan); display:grid; place-items:center; font-size:0.6875rem; font-weight:800; margin-top:1px; }
.card--image { padding:0; overflow:hidden; }
.card--image img { width:100%; height:100%; object-fit:cover; min-height:400px; transition:transform 1.2s var(--ease-out); }
.card--image:hover img { transform:scale(1.06); }

/* ========================================
   HEADER / NAVIGATION
   ======================================== */
.topbar { position:sticky; top:0; z-index:100; background:rgba(255,255,255,.82); backdrop-filter:blur(24px) saturate(200%); -webkit-backdrop-filter:blur(24px) saturate(200%); border-bottom:1px solid rgba(208,224,228,.5); transition:box-shadow .4s,background .4s; }
[data-theme="dark"] .topbar { background:rgba(10,19,36,.82); border-bottom-color:rgba(28,48,77,.5); }
.topbar--scrolled { box-shadow:var(--sh-sm); background:rgba(255,255,255,.95); }
[data-theme="dark"] .topbar--scrolled { background:rgba(10,19,36,.95); }
.nav { height:84px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand { display:flex; align-items:center; gap:14px; font-weight:800; font-size:1.0625rem; letter-spacing:-.01em; position:relative; }
/* Logo Icon Navy gradient */
.brand__mark { width:48px; height:48px; border-radius:14px; background:linear-gradient(145deg,var(--primary),var(--primary-3)); color:#fff; display:grid; place-items:center; font-size:0.875rem; font-weight:800; letter-spacing:.04em; box-shadow:var(--sh-sm),inset 0 1px 0 rgba(255,255,255,.18),0 0 30px var(--glow); flex-shrink:0; position:relative; overflow:hidden; transition:transform .4s var(--ease-spring),box-shadow .4s; }
.brand__mark::before { content:""; position:absolute; inset:0; background:linear-gradient(145deg,transparent 50%,rgba(255,255,255,.12) 100%); border-radius:inherit; }
.brand:hover .brand__mark { transform:scale(1.08) rotate(-3deg); box-shadow:var(--sh),inset 0 1px 0 rgba(255,255,255,.22),0 0 40px var(--glow); }
.brand__subtitle { display:block; color:var(--muted); font-weight:500; font-size:0.75rem; margin-top:2px; letter-spacing:.01em; }

.menu { display:flex; align-items:center; gap:6px; font-size:0.875rem; font-weight:600; }
.menu__link { position:relative; padding:9px 16px; border-radius:999px; color:var(--muted); overflow:hidden; }
.menu__link::before { content:""; position:absolute; inset:0; background:var(--primary-light); border-radius:inherit; transform:scaleX(0); transform-origin:left; transition:transform .4s var(--ease-out); z-index:-1; }
.menu__link:hover { color:var(--cyan); }
.menu__link:hover::before { transform:scaleX(1); }
.menu__link--active { color:var(--cyan); background:var(--primary-light); }
.menu__link:focus-visible { outline:3px solid var(--cyan); outline-offset:2px; }
.nav__right { display:flex; align-items:center; gap:10px; }

/* Hamburger */
.hamburger { display:none; flex-direction:column; justify-content:center; gap:5px; width:44px; height:44px; border:none; background:none; cursor:pointer; padding:10px; border-radius:12px; position:relative; }
.hamburger:hover { background:var(--primary-light); }
.hamburger__line { display:block; height:2.5px; width:22px; background:var(--text); border-radius:3px; transition:all .4s var(--ease-spring); margin:0 auto; }
.hamburger--open .hamburger__line:nth-child(1) { transform:translateY(7.5px) rotate(45deg); }
.hamburger--open .hamburger__line:nth-child(2) { opacity:0; transform:scaleX(0); }
.hamburger--open .hamburger__line:nth-child(3) { transform:translateY(-7.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu { display:none; position:fixed; inset:0; top:84px; z-index:99; background:rgba(255,255,255,.97); backdrop-filter:blur(30px); padding:32px 24px; flex-direction:column; gap:6px; transform:translateY(-10px); opacity:0; transition:all .4s var(--ease-out); }
[data-theme="dark"] .mobile-menu { background:rgba(10,19,36,.97); }
.mobile-menu--open { display:flex; transform:translateY(0); opacity:1; }
.mobile-menu__link { padding:16px 20px; border-radius:16px; font-weight:600; font-size:1.125rem; color:var(--text); transition:background var(--ease),color var(--ease),transform .3s; }
.mobile-menu__link:hover { background:var(--primary-light); color:var(--cyan); transform:translateX(6px); }
.mobile-menu__link:focus-visible { outline:3px solid var(--cyan); outline-offset:2px; }

/* ========================================
   HERO
   ======================================== */
.hero { padding:64px 0 80px; position:relative; }
.hero__grid { display:grid; grid-template-columns:1.1fr .9fr; gap:28px; align-items:stretch; }

/* Hero fond Navy profond avec halo */
.hero__box { background:linear-gradient(155deg,#112340 0%,#1a3663 50%,#081121 100%); color:#fff; border-radius:var(--r-lg); padding:56px 52px; box-shadow:var(--sh-lg),0 0 0 1px rgba(255,255,255,.06) inset; position:relative; overflow:hidden; display:flex; flex-direction:column; justify-content:space-between; z-index:1; }
.hero__box::before { content:""; position:absolute; width:450px; height:450px; border-radius:50%; background:radial-gradient(circle,rgba(28,163,227,.12),transparent 70%); top:-140px; right:-120px; pointer-events:none; animation:pulse-glow 6s ease-in-out infinite; }
.hero__box::after { content:""; position:absolute; width:260px; height:260px; border-radius:50%; background:radial-gradient(circle,rgba(243,122,31,.08),transparent 70%); bottom:-80px; left:60px; pointer-events:none; animation:pulse-glow 8s ease-in-out infinite 2s; }

/* Mesh gradient avec couleurs du Logo */
.hero__mesh { position:absolute; inset:0; pointer-events:none; overflow:hidden; border-radius:inherit; z-index:1; }
.hero__orb { position:absolute; border-radius:50%; filter:blur(80px); opacity:.15; animation:orb-float 12s ease-in-out infinite; }
.hero__orb:nth-child(1) { width:300px; height:300px; background:var(--accent); top:-100px; right:-80px; animation-delay:0s; } /* Orange */
.hero__orb:nth-child(2) { width:250px; height:250px; background:var(--primary); bottom:-80px; left:-60px; animation-delay:-4s; } /* Navy */
.hero__orb:nth-child(3) { width:200px; height:200px; background:var(--cyan); top:50%; left:50%; animation-delay:-8s; } /* Cyan */

.hero__eyebrow { display:inline-flex; align-items:center; gap:10px; background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.18); color:rgba(255,255,255,.9); padding:8px 18px; border-radius:999px; font-size:0.75rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; margin-bottom:26px; width:fit-content; position:relative; z-index:3; backdrop-filter:blur(10px); }
.hero__eyebrow::before { content:""; display:block; width:8px; height:8px; border-radius:50%; background:var(--cyan); box-shadow:0 0 12px var(--cyan),0 0 24px var(--glow-cyan); animation:pulse-dot 2.5s ease-in-out infinite; }

.hero__title { font-size:clamp(2.375rem,5.4vw,3.875rem); line-height:1.06; font-weight:800; margin-bottom:22px; max-width:15ch; position:relative; z-index:3; letter-spacing:-.02em; }
.hero__title-accent { font-style:normal; color:var(--cyan); text-shadow:0 0 40px rgba(28,163,227,.4); }
.hero__description { color:rgba(255,255,255,.8); font-size:1.0625rem; max-width:52ch; margin-bottom:36px; line-height:1.75; position:relative; z-index:3; }
.hero__actions { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:40px; position:relative; z-index:3; }
.hero__tags { display:flex; gap:10px; flex-wrap:wrap; padding-top:28px; border-top:1px solid rgba(255,255,255,.1); position:relative; z-index:3; }
.hero__tag { display:flex; align-items:center; gap:8px; padding:9px 16px; border-radius:999px; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.08); font-size:0.8125rem; font-weight:600; backdrop-filter:blur(10px); }
.hero__tag:hover { background:rgba(255,255,255,.12); transform:translateY(-2px); }
.hero__tag::before { content:"\2713"; font-size:0.6875rem; color:var(--cyan); font-weight:800; width:18px; height:18px; border-radius:50%; background:rgba(28,163,227,.15); display:grid; place-items:center; }

/* Hero image */
.hero__media { border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-lg); position:relative; min-height:520px; transform-style:preserve-3d; }
.hero__media::before { content:""; position:absolute; inset:0; background:linear-gradient(180deg,transparent 40%,rgba(17,35,64,.7) 100%); z-index:1; pointer-events:none; }
.hero__media img { width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease-out); }
.hero__media:hover { transform:translateY(-4px) rotateX(2deg); box-shadow:0 50px 100px rgba(17,35,64,.22); }
[data-theme="dark"] .hero__media:hover { box-shadow:0 50px 100px rgba(0,0,0,.5); }
.hero__media:hover img { transform:scale(1.08); }

.hero__badge { position:absolute; left:20px; bottom:20px; right:20px; background:var(--hero-badge-bg); backdrop-filter:blur(20px) saturate(180%); color:var(--hero-badge-text); padding:18px 22px; border-radius:20px; box-shadow:var(--sh); font-size:0.84375rem; line-height:1.6; z-index:2; border:1px solid var(--hero-badge-border); transition:transform .4s var(--ease-out),background .5s,color .5s; }
.hero__badge-title { display:block; font-size:0.9375rem; color:var(--cyan); margin-bottom:5px; font-weight:800; }
.hero__media:hover .hero__badge { transform:translateY(-4px); }

/* Particle canvas */
.particle-canvas { position:absolute; inset:0; pointer-events:none; z-index:2; border-radius:inherit; overflow:hidden; }

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-head { margin-bottom:56px; }
.section-head__label { display:inline-flex; align-items:center; gap:8px; color:var(--cyan); font-size:0.75rem; letter-spacing:.14em; text-transform:uppercase; font-weight:800; margin-bottom:12px; }
.section-head__label::before { content:""; width:24px; height:2px; background:linear-gradient(90deg,var(--cyan),var(--primary-light)); border-radius:2px; }
.section-head__title { font-size:clamp(1.875rem,4.2vw,3rem); font-weight:800; line-height:1.1; margin-bottom:16px; letter-spacing:-.025em; }
.section-head__text { color:var(--muted); max-width:60ch; font-size:1.0625rem; line-height:1.75; }
.section-head--center { text-align:center; }
.section-head--center .section-head__text { margin:0 auto; }
.section-head--center .section-head__label { justify-content:center; }
.section-head--center .section-head__label::before { width:0; }
.section-head--center .section-head__label::after { content:""; width:24px; height:2px; background:linear-gradient(90deg,var(--primary-light),var(--cyan)); border-radius:2px; margin-left:8px; }

/* ========================================
   ABOUT / SOCIÉTÉ
   ======================================== */
.about { background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); position:relative; }
.about::before { content:""; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,var(--primary-light),transparent); opacity:.5; }
.about__grid { display:grid; grid-template-columns:1.1fr .9fr; gap:28px; align-items:stretch; }

/* ========================================
   PRODUCTS
   ======================================== */
.products { background:var(--bg); position:relative; }
.products__grid { display:grid; grid-template-columns:repeat(2,1fr); gap:28px; margin-bottom:32px; }

.product { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-xs); position:relative; }
.product::after { content:""; position:absolute; inset:0; border-radius:inherit; box-shadow:0 0 0 0 var(--glow); transition:box-shadow .5s; pointer-events:none; }
.product:hover { transform:translateY(-8px); }
.product:hover::after { box-shadow:0 20px 60px var(--glow-cyan); }
.product__header { padding:28px 32px 22px; background:linear-gradient(145deg,var(--primary),var(--primary-2)); color:#fff; position:relative; overflow:hidden; }
.product__header::before { content:""; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent); }
.product__header::after { content:""; position:absolute; right:-40px; top:-40px; width:160px; height:160px; border-radius:50%; background:rgba(255,255,255,.06); animation:float-circle 8s ease-in-out infinite; }
.product__ref { display:inline-block; font-size:0.6875rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase; color:rgba(255,255,255,.55); margin-bottom:6px; }
.product__name { font-size:2.375rem; font-weight:800; margin-bottom:5px; letter-spacing:-.02em; }
.product__subtitle { color:rgba(255,255,255,.75); font-size:0.90625rem; }
.product__body { padding:28px 32px; }

.specs { display:grid; gap:0; }
.specs__row { display:grid; grid-template-columns:auto 1fr; gap:12px; padding:12px 0; border-bottom:1px solid var(--line); font-size:0.90625rem; align-items:baseline; margin:0 -8px; padding-left:8px; padding-right:8px; border-radius:8px; }
.specs__row:hover { background:var(--primary-light); }
.specs__row:last-child { border:none; }
.specs__label { color:var(--text); font-weight:600; white-space:nowrap; }
.specs__value { color:var(--muted); }

.tags { display:flex; gap:8px; flex-wrap:wrap; margin-top:20px; padding-top:20px; border-top:1px solid var(--line); }

.showcase { display:grid; grid-template-columns:.85fr 1.15fr; gap:28px; align-items:stretch; }
.showcase__media { border-radius:var(--r); overflow:hidden; box-shadow:var(--sh); min-height:340px; position:relative; }
.showcase__media::before { content:""; position:absolute; inset:0; background:linear-gradient(135deg,rgba(17,35,64,.08),transparent 60%); z-index:1; pointer-events:none; }
.showcase__media img { width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease-out); }
.showcase__media:hover img { transform:scale(1.08); }

.gas-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:24px; }
.gas-item { padding:16px 12px; border-radius:var(--r-sm); background:var(--surface-2); border:1.5px solid var(--line); text-align:center; font-weight:800; font-size:0.9375rem; color:var(--primary-2); position:relative; overflow:hidden; }
[data-theme="dark"] .gas-item { color:var(--cyan); }
.gas-item::before { content:""; position:absolute; inset:0; background:linear-gradient(145deg,var(--primary),var(--primary-2)); opacity:0; transition:opacity .4s; }
.gas-item:hover { background:var(--primary); border-color:var(--primary); color:#fff; transform:translateY(-4px) scale(1.02); box-shadow:0 12px 28px var(--glow); }
.gas-item:hover::before { opacity:1; }
.gas-item__text { position:relative; z-index:1; }

/* ========================================
   QUALITÉ
   ======================================== */
.quality { background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); position:relative; overflow:hidden; }
.quality::before { content:""; position:absolute; width:600px; height:600px; border-radius:50%; background:radial-gradient(circle,var(--glow-cyan),transparent 70%); top:-200px; right:-200px; pointer-events:none; }
.quality__grid { display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }

.quality-card { background:var(--surface); border:1.5px solid var(--line); border-radius:var(--r); padding:32px 28px; box-shadow:var(--sh-xs); position:relative; overflow:hidden; }
.quality-card::before { content:""; position:absolute; inset:0; background:linear-gradient(180deg,var(--glow),transparent); opacity:0; transition:opacity .4s; }
.quality-card::after { content:""; position:absolute; bottom:0; left:0; right:0; height:3px; background:linear-gradient(90deg,var(--primary),var(--cyan)); transform:scaleX(0); transform-origin:left; transition:transform .5s var(--ease-out); }
.quality-card:hover { box-shadow:var(--sh); transform:translateY(-8px); border-color:var(--glow-cyan); }
.quality-card:hover::before { opacity:1; }
.quality-card:hover::after { transform:scaleX(1); }
.quality-card__icon { width:56px; height:56px; border-radius:16px; background:linear-gradient(145deg,var(--primary-light),rgba(28,163,227,.08)); display:grid; place-items:center; margin-bottom:22px; box-shadow:0 4px 16px var(--glow-cyan); transition:all .4s var(--ease-spring); }
.quality-card:hover .quality-card__icon { transform:scale(1.1) rotate(-5deg); box-shadow:0 8px 24px var(--glow-cyan); }
.quality-card__icon svg { width:26px; height:26px; stroke:var(--cyan); fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.quality-card__title { font-size:1.125rem; font-weight:800; margin-bottom:12px; }
.quality-card__text { color:var(--muted); font-size:0.90625rem; line-height:1.7; }

/* ========================================
   CONTACT
   ======================================== */
.contact { background:var(--bg); position:relative; }
.contact__grid { display:grid; grid-template-columns:1fr 1.2fr; gap:28px; }

.contact-panel { background:var(--surface); border:1.5px solid var(--line); border-radius:var(--r); padding:40px; box-shadow:var(--sh-xs); position:relative; overflow:hidden; }
.contact-panel:hover { box-shadow:var(--sh-sm); }
.contact-panel__title { font-size:1.5rem; font-weight:800; margin-bottom:26px; letter-spacing:-.02em; }

.contact-list { display:grid; gap:14px; }
.contact-item { display:flex; align-items:flex-start; gap:16px; padding:15px 18px; border-radius:var(--r-sm); background:var(--surface-2); border:1.5px solid var(--line); transition:all .4s var(--ease); }
.contact-item:hover { background:var(--primary-light); border-color:var(--glow-cyan); transform:translateX(6px); }
.contact-item__icon { width:42px; height:42px; border-radius:12px; flex-shrink:0; background:linear-gradient(145deg,var(--primary-light),rgba(28,163,227,.08)); display:grid; place-items:center; transition:all .4s var(--ease-spring); }
.contact-item:hover .contact-item__icon { transform:scale(1.1); background:linear-gradient(145deg,var(--primary),var(--primary-2)); }
.contact-item:hover .contact-item__icon svg { stroke:#fff; }
.contact-item__icon svg { width:20px; height:20px; stroke:var(--cyan); fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.contact-item__label { display:block; font-size:0.6875rem; font-weight:700; color:var(--muted); text-transform:uppercase; letter-spacing:.08em; margin-bottom:4px; }
.contact-item__value { font-size:0.96875rem; color:var(--text); font-weight:500; }
.link-contact[href] { text-decoration:underline; text-underline-offset:4px; transition:color .3s; }
.link-contact[href]:hover { color:var(--accent); }

.notice { margin-top:26px; padding:16px 20px; border-radius:var(--r-sm); background:var(--notice-bg); border:1.5px solid var(--notice-border); color:var(--notice-text); font-size:0.8125rem; font-weight:700; display:flex; align-items:center; gap:10px; transition:transform .3s,background .5s,border-color .5s,color .5s; }
.notice:hover { transform:translateY(-2px); }
.notice svg { flex-shrink:0; width:18px; height:18px; stroke:currentColor; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

.form { display:grid; gap:18px; }
.form__row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form__label { font-size:0.8125rem; font-weight:700; color:var(--text); display:block; margin-bottom:7px; }
.form__input { width:100%; padding:15px 18px; border-radius:var(--r-sm); border:1.5px solid var(--line); background:var(--surface-2); font:inherit; font-size:0.9375rem; color:var(--text); outline:none; transition: border-color .2s ease; }
.form__input:focus { border-color:var(--cyan); background:var(--input-focus-bg); box-shadow:0 0 0 4px var(--glow-cyan); transform:translateY(-1px); }
.form__input:focus-visible { outline:none; }
.form__textarea { resize:vertical; min-height:130px; }
.form__hint { margin-top:8px; font-size:0.78125rem; color:var(--muted); line-height:1.5; }

/* Styles de validation */
.form__input:invalid { border-color:var(--line); }
.form__input:invalid:focus { border-color:#e74c3c; box-shadow:0 0 0 4px rgba(231,76,60,.15); }
.form__input:valid { border-color:#2ecc71; }
.form__input:valid:focus { border-color:#2ecc71; box-shadow:0 0 0 4px rgba(46,204,113,.15); }

/* ===== MODAL STYLES ===== */
.modal { position:fixed; top:0; left:0; width:100%; height:100%; display:flex; align-items:center; justify-content:center; z-index:2000; opacity:0; visibility:hidden; transition:opacity 0.3s ease,visibility 0.3s ease; }
.modal.active { opacity:1; visibility:visible; }
.modal__overlay { position:absolute; top:0; left:0; width:100%; height:100%; background-color:rgba(17,35,64,0.6); backdrop-filter:blur(5px); }
.modal__content { position:relative; background:var(--surface); padding:2.5rem; border-radius:12px; max-width:500px; width:90%; text-align:center; box-shadow:0 10px 30px rgba(0,0,0,0.2); z-index:2001; transform:translateY(20px); transition:transform 0.3s ease; }
.modal.active .modal__content { transform:translateY(0); }
.modal__close { position:absolute; top:1rem; right:1rem; background:none; border:none; font-size:1.5rem; color:var(--muted); cursor:pointer; transition:color 0.2s ease; }
.modal__close:hover { color:var(--accent); }
.modal__icon { width:60px; height:60px; margin:0 auto 1.5rem; color:#2ecc71; background:rgba(46,204,113,0.1); border-radius:50%; display:flex; align-items:center; justify-content:center; }
.modal__title { font-size:1.5rem; margin-bottom:1rem; color:var(--text); }
.modal__text { color:var(--muted); margin-bottom:1.5rem; line-height:1.6; }

/* ========================================
   FOOTER
   ======================================== */
.footer { background:linear-gradient(180deg,#112340,#081121); color:rgba(255,255,255,.6); padding:64px 0 36px; position:relative; overflow:hidden; }
.footer::before { content:""; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,rgba(28,163,227,.4),transparent); }
.footer__grid { display:grid; grid-template-columns:1.7fr 1fr 1fr; gap:48px; padding-bottom:44px; border-bottom:1px solid rgba(255,255,255,.08); position:relative; z-index:1; }
.footer__brand { display:flex; align-items:center; gap:14px; margin-bottom:18px; }
.footer__brand .brand__mark { box-shadow:0 0 30px var(--glow-cyan); }
.footer__brand-name { color:#fff; font-size:1.0625rem; font-weight:800; }
.footer__desc { font-size:0.90625rem; line-height:1.8; max-width:34ch; color:rgba(255,255,255,.5); }
.footer__col-title { color:#fff; font-size:0.8125rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; margin-bottom:20px; }
.footer__links { display:grid; gap:12px; }
.footer__link { font-size:0.90625rem; display:inline-block; position:relative; padding-left:0; }
.footer__link::before { content:""; position:absolute; left:-14px; top:50%; transform:translateY(-50%) scale(0); width:6px; height:6px; border-radius:50%; background:var(--cyan); transition:transform .3s var(--ease-spring); }
.footer__link:hover { color:#fff; padding-left:14px; }
.footer__link:hover::before { transform:translateY(-50%) scale(1); }
.footer__link:focus-visible { outline:2px solid var(--cyan); outline-offset:3px; }
.footer__bottom { padding-top:32px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px; font-size:0.8125rem; position:relative; z-index:1; }
.footer__bottom span { color:rgba(255,255,255,.4); }

/* ========================================
   BACK TO TOP
   ======================================== */
.back-to-top { position:fixed; right:24px; bottom:24px; z-index:99; width:50px; height:50px; border-radius:50%; background:linear-gradient(145deg,var(--accent),var(--accent-2)); color:#fff; border:none; cursor:pointer; display:grid; place-items:center; box-shadow:0 8px 28px var(--glow-accent); opacity:0; transform:translateY(20px) scale(.9); transition:opacity .4s,transform .4s var(--ease-spring),box-shadow .3s,background .5s; }
.back-to-top--visible { opacity:1; transform:translateY(0) scale(1); }
.back-to-top:hover { transform:translateY(-4px) scale(1.08); box-shadow:0 12px 36px var(--glow-accent); }
.back-to-top:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
.back-to-top svg { width:22px; height:22px; stroke:#fff; fill:none; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; }

/* ========================================
   UTILITIES
   ======================================== */
.gradient-text { background:linear-gradient(135deg,var(--primary),var(--cyan)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }

/* ---- TYPOGRAPHIE ---- */
:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

/* On applique Outfit aux titres, SANS les forcer en majuscules */
h1, h2, h3, h4, h5, h6,
.hero__title, 
.section-head__title, 
.card__title, 
.product__name,
.contact-panel__title,
.footer__brand-name {
  font-family: var(--font-heading);
  /* ⚠️ SUPPRIMER : text-transform: uppercase; */
  letter-spacing: -0.02em; /* Resserre légèrement pour faire plus chic */
}

/* On affine la taille du très gros titre (HERO) */
.hero__title { 
  /* On réduit légèrement le clamp par rapport à avant */
  font-size: clamp(2rem, 4.5vw, 3.5rem); 
  line-height: 1.15; /* On aère l'espace entre les lignes (avant c'était 1.06) */
  font-weight: 700; /* 700 au lieu de 800 pour alléger le visuel */
  margin-bottom: 22px; 
  max-width: 15ch; 
  position: relative; 
  z-index: 3; 
}
/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width:1060px) {
  .quality__grid { grid-template-columns:repeat(2,1fr); }
  .footer__grid { grid-template-columns:1fr 1fr; }
  .footer__grid > *:first-child { grid-column:1/-1; }
}
@media (max-width:860px) {
  .hero__grid,.about__grid,.products__grid,.showcase,.contact__grid { grid-template-columns:1fr; }
  .hero__box { padding:40px 32px; }
  .hero__media { min-height:320px; }
  .form__row { grid-template-columns:1fr; }
  .gas-grid { grid-template-columns:repeat(2,1fr); }
  section { padding:80px 0; }
  .menu,.topbar .btn--primary { display:none; }
  .hamburger { display:flex; }
}
@media (max-width:560px) {