/* MathDiag Maroc — CSS réservé au nouveau site */
:root{--navy:#06275c;--blue:#1565c0;--gold:#ffb703;--bg:#f5f7fb;--ink:#1f2937;--muted:#596579;--line:#d9e3ef}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}a{color:var(--blue)}.container{width:min(1100px,calc(100% - 36px));margin-inline:auto}.site-header{background:var(--navy);color:#fff}.nav{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:20px}.brand{color:white;font-size:1.3rem;font-weight:800;text-decoration:none}.menu{display:flex;gap:22px;list-style:none;margin:0;padding:0}.menu a{color:#fff;text-decoration:none;font-weight:600}.menu a:hover,.menu a:focus-visible{color:var(--gold)}.hero{background:linear-gradient(135deg,#e7f1ff,#ffffff);padding:74px 0}.hero h1{font-size:clamp(2rem,4.5vw,3.5rem);color:var(--navy);max-width:820px;line-height:1.15;margin:0 0 18px}.hero p{max-width:670px;color:#34445d;font-size:1.12rem}.section{padding:48px 0}.section h2{color:var(--navy);font-size:clamp(1.55rem,3vw,2rem);margin:0 0 10px}.lead{color:var(--muted);margin:0 0 25px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{display:flex;flex-direction:column;background:white;padding:24px;border:1px solid var(--line);border-radius:16px;box-shadow:0 4px 18px #132e5010}.card h3{margin:0 0 8px;color:var(--navy);font-size:1.2rem}.card p{color:var(--muted);margin:0 0 20px}.card .btn{margin-top:auto;align-self:flex-start}.btn{display:inline-block;padding:11px 18px;border-radius:9px;background:var(--blue);color:white;text-decoration:none;font-weight:bold;border:0;cursor:pointer}.btn:hover{background:var(--navy)}.btn.secondary{background:white;color:var(--blue);border:1px solid var(--blue)}.btn.secondary:hover{background:#e9f2ff}.btn[aria-disabled=true]{background:#e6ebf2;color:#607086;cursor:not-allowed;border-color:#e6ebf2}.breadcrumbs{padding:22px 0;font-size:.93rem;color:var(--muted)}.breadcrumbs a{text-decoration:none}.panel{background:white;border:1px solid var(--line);border-radius:16px;padding:25px}.resource-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.resource{padding:18px;border:1px solid var(--line);border-radius:12px;background:#f9fbfe}.resource h3{margin:0 0 8px;color:var(--navy)}.resource p{color:var(--muted);margin:0 0 12px}.tag{font-size:.85rem;color:#6a4b03;background:#fff4cf;border-radius:7px;padding:4px 8px;display:inline-block}.empty{background:#fff7dc;border:1px solid #eedda1;border-radius:12px;padding:17px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{background:#fff;border-radius:12px;padding:20px;border:1px solid var(--line)}.step strong{color:var(--navy)}.site-footer{margin-top:35px;padding:27px 0;background:var(--navy);color:white}.site-footer a{color:#fff}.subtle{color:var(--muted)}:focus-visible{outline:3px solid var(--gold);outline-offset:3px}@media(max-width:800px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.steps{grid-template-columns:1fr}.nav{flex-direction:column;padding:15px 0}.menu{flex-wrap:wrap;justify-content:center;gap:8px 20px}.hero{padding:50px 0}}@media(max-width:560px){.grid,.resource-list{grid-template-columns:1fr}.card{padding:20px}.hero{padding:38px 0}.section{padding:35px 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}


/* Accueil — conserve la couverture prévue dans l'ancien MathDiag Maroc. */
.hero {
  background-image: linear-gradient(90deg, rgba(255,255,255,.90) 0%, rgba(255,255,255,.67) 42%, rgba(255,255,255,.12) 100%), url("images/acceuil.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  min-height: 470px;
  display: flex;
  align-items: center;
}
.hero-content { position: relative; }
.hero h1 { max-width: 760px; }
.hero p { max-width: 690px; color: #22344c; }
.intro-section { background: white; }
.intro-content { max-width: 940px; }
.intro-content p { margin: 14px 0 0; color: #40516a; font-size: 1.05rem; }
.atouts-section { background: #eaf2fb; }
.atouts-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.atout { background: white; padding: 23px 20px; border: 1px solid var(--line); border-radius: 14px; }
.atout-icon { font-size: 1.8rem; }
.atout h3 { color: var(--navy); font-size: 1.04rem; margin: 10px 0; line-height: 1.35; }
.atout p { color: var(--muted); font-size: .94rem; margin: 0; }
@media (max-width: 900px) { .atouts-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 560px) {
  .hero { min-height: 380px; background-image: linear-gradient(rgba(255,255,255,.87),rgba(255,255,255,.87)), url("images/acceuil.png"); }
  .atouts-grid { grid-template-columns: 1fr; }
}

/* Chapitres — cours, cinq séries et évaluations */
.chapter-resources h2{font-size:1.45rem;color:var(--navy);margin:32px 0 12px}
.chapter-resources .series-row{border:1px solid var(--line);background:#fff;border-radius:15px;padding:18px;margin:14px 0}
.chapter-resources .series-row h3{color:var(--navy);margin:0 0 6px}
.chapter-resources .series-row .resource-list{margin-top:12px}
.chapter-resources .resource{min-width:0}
@media(max-width:560px){.chapter-resources .series-row{padding:12px}}

.concours-group{margin:0 0 34px}.concours-group h2{color:var(--navy);margin:0 0 16px}.concours-domain{margin-bottom:14px}.concours-domain h3{margin-top:0;color:var(--navy)}