/* ===== E.Y.A — design tokens =====
   Palette : nuit indigo (voile teint à l'indigo) / sable-parchemin (dunes, cuir)
   / or (identité du logo). Rythme jour-nuit entre sections, en écho à la
   traversée du désert — pertinent pour une entreprise de transport. */

:root{
  --indigo-deep:#161F33;
  --indigo-mid:#223058;
  --indigo-line:#3A4C82;
  --sand:#D9A76A;
  --sand-light:#F1E6CE;
  --sand-paper:#F8F2E4;
  --gold:#C4922B;
  --gold-bright:#E0B25A;
  --charcoal:#17140F;
  --cream-ink:#EFE7D6;

  --font-display:"Syne", "IBM Plex Sans Arabic", sans-serif;
  --font-body:"IBM Plex Sans", "IBM Plex Sans Arabic", sans-serif;

  --maxw:1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--cream-ink);
  background:var(--indigo-deep);
  line-height:1.6;
  font-size:16px;
}
[dir="rtl"] body{font-family:"IBM Plex Sans Arabic", var(--font-body);}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  margin:0 0 .4em;
  letter-spacing:.01em;
}
[dir="rtl"] h1, [dir="rtl"] h2, [dir="rtl"] h3{font-family:"IBM Plex Sans Arabic", sans-serif;}

p{margin:0 0 1em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.section{padding:88px 0;}
.section--light{background:var(--sand-paper);color:var(--charcoal);}
.section--light h2{color:var(--charcoal);}
.section--dark{background:var(--indigo-deep);}

.eyebrow{
  color:var(--gold-bright);
  font-size:14px;
  font-weight:600;
  margin:0 0 10px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(22,31,51,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--indigo-line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:42px;width:auto;border-radius:4px;}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:18px;color:var(--cream-ink);}
.brand-tag{font-size:11px;color:var(--sand);display:block;margin-top:1px;}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{font-size:15px;color:var(--cream-ink);opacity:.85;}
.main-nav a:hover{opacity:1;color:var(--gold-bright);}

.lang-switch{display:flex;gap:6px;border:1px solid var(--indigo-line);border-radius:20px;padding:4px;}
.lang-switch button{
  background:none;border:none;color:var(--cream-ink);opacity:.6;
  font-size:12px;font-weight:600;padding:5px 10px;border-radius:16px;cursor:pointer;
}
.lang-switch button.active{opacity:1;background:var(--gold);color:var(--charcoal);}

.nav-toggle{display:none;background:none;border:1px solid var(--indigo-line);border-radius:8px;color:var(--cream-ink);padding:8px 10px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:110px 0 70px;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(196,146,43,.14), transparent 55%),
    var(--indigo-deep);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
.hero h1{font-size:44px;line-height:1.12;color:var(--cream-ink);max-width:12.5ch;}
.hero .lead{font-size:17px;color:var(--sand-light);max-width:46ch;opacity:.9;}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}

.btn{
  display:inline-block;padding:13px 24px;border-radius:2px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--gold);color:var(--charcoal);}
.btn-primary:hover{background:var(--gold-bright);}
.btn-ghost{border-color:var(--indigo-line);color:var(--cream-ink);background:transparent;}
.btn-ghost:hover{border-color:var(--gold);}

.hero-motif{width:100%;height:auto;opacity:.9;}

/* horizon divider between sections — dune silhouette */
.horizon{display:block;width:100%;height:46px;}
.horizon path{fill:var(--sand-paper);}
.horizon--to-dark path{fill:var(--indigo-deep);}

/* ---------- Activités ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px;}
.activity-card{
  background:var(--sand-light);
  border:1px solid rgba(23,20,15,.1);
  padding:30px 26px;
}
.activity-card .icon{width:40px;height:40px;margin-bottom:18px;}
.activity-card h3{font-size:19px;color:var(--charcoal);}
.activity-card p{font-size:14.5px;color:#4B4536;margin-bottom:0;}

/* ---------- Chiffres ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:52px;border-top:1px solid var(--indigo-line);padding-top:36px;}
.stat b{display:block;font-family:var(--font-display);font-size:30px;color:var(--gold-bright);}
.stat span{font-size:13.5px;color:var(--sand-light);opacity:.85;}

/* ---------- Projets ---------- */
.grid-projects{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:44px;background:var(--indigo-line);}
.project-card{background:var(--indigo-mid);padding:26px;min-height:190px;display:flex;flex-direction:column;justify-content:flex-end;}
.project-card .tag{font-size:12px;color:var(--gold-bright);margin-bottom:8px;}
.project-card h3{font-size:17px;margin-bottom:6px;}
.project-card p{font-size:13.5px;color:var(--sand-light);opacity:.85;margin:0;}

/* ---------- Partenaires / documents ---------- */
.doc-callout{
  margin-top:50px;
  border:1px solid var(--gold);
  background:var(--indigo-mid);
  padding:32px;
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
}
[dir="rtl"] .doc-callout{grid-template-columns:auto 1fr;}
.doc-callout h3{font-size:18px;margin-bottom:6px;}
.doc-callout p{margin:0;font-size:14.5px;color:var(--sand-light);opacity:.9;}

.logos-row{display:flex;gap:38px;flex-wrap:wrap;align-items:center;margin-top:36px;opacity:.75;}
.logos-row div{
  border:1px dashed rgba(23,20,15,.25);
  padding:14px 22px;font-size:13px;color:#6b6350;
}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;margin-top:40px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;margin-bottom:6px;color:var(--sand-light);}
.field input,.field textarea{
  width:100%;padding:12px 14px;background:var(--indigo-mid);
  border:1px solid var(--indigo-line);color:var(--cream-ink);font-family:var(--font-body);font-size:14.5px;
}
.field textarea{min-height:110px;resize:vertical;}
.contact-info dt{font-size:12.5px;color:var(--gold-bright);margin-top:18px;}
.contact-info dd{margin:2px 0 0;font-size:15px;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--indigo-line);padding:34px 0;}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;}
footer p{margin:0;font-size:13px;color:var(--sand-light);opacity:.7;}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .main-nav{position:fixed;inset:64px 0 auto 0;background:var(--indigo-deep);flex-direction:column;align-items:flex-start;padding:22px 28px;border-bottom:1px solid var(--indigo-line);gap:16px;display:none;}
  .main-nav.open{display:flex;}
  .nav-toggle{display:block;}
  .hero .wrap{grid-template-columns:1fr;}
  .hero h1{font-size:32px;max-width:none;}
  .grid-3,.grid-projects,.stats,.contact-grid{grid-template-columns:1fr;}
  .doc-callout{grid-template-columns:1fr;}
}