/* =====================================================================
   EDUTYS — Design System
   Zero-dependency stylesheet: no external fonts/build step required.
   ===================================================================== */

:root{
  /* Brand palette — dérivée du logo (bleu > vert > jaune/orange > rouge, accent violet) */
  --c-blue-900:#0b2a6b;
  --c-blue-700:#1547c9;
  --c-blue-500:#2f6bf0;
  --c-green-600:#159a4a;
  --c-green-400:#3fbf6b;
  --c-yellow-500:#f5a623;
  --c-orange-500:#f2790f;
  --c-red-500:#e83a3a;
  --c-purple-600:#6b3fd6;

  --grad-brand: linear-gradient(100deg, var(--c-blue-700) 0%, var(--c-green-500,#22b55e) 42%, var(--c-yellow-500) 70%, var(--c-red-500) 100%);
  --grad-hero: linear-gradient(135deg, #0b2a6b 0%, #15409e 32%, #159a4a 68%, #f5a623 100%);
  --grad-soft: linear-gradient(135deg, rgba(21,71,201,.08), rgba(21,154,74,.08));

  --ink-900:#111827;
  --ink-700:#374151;
  --ink-500:#6b7280;
  --ink-300:#d1d5db;
  --ink-100:#f3f4f6;
  --surface:#ffffff;
  --surface-alt:#f7f8fb;
  --border:#e6e8ee;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --shadow-sm: 0 1px 2px rgba(17,24,39,.06), 0 1px 1px rgba(17,24,39,.04);
  --shadow-md: 0 8px 24px rgba(17,24,39,.08);
  --shadow-lg: 0 20px 48px rgba(17,24,39,.14);

  --container: 1180px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--ink-900);
  background:var(--surface);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}

.container{max-width:var(--container);margin-inline:auto;padding-inline:20px}
.section{padding-block:64px}
.section-sm{padding-block:32px}
.text-center{text-align:center}
.mt-0{margin-top:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--c-blue-700);
  background:rgba(21,71,201,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.lead{font-size:1.15rem;color:var(--ink-700)}
.muted{color:var(--ink-500)}
.grad-text{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:2px solid transparent;transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:var(--grad-brand); color:#fff; box-shadow:var(--shadow-md);
}
.btn-primary:hover{box-shadow:var(--shadow-lg); transform:translateY(-1px)}
.btn-dark{background:var(--c-blue-900);color:#fff}
.btn-dark:hover{background:#081d4d}
.btn-outline{background:transparent;border-color:var(--ink-300);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--c-blue-700);color:var(--c-blue-700)}
.btn-white{background:#fff;color:var(--c-blue-700)}
.btn-white:hover{box-shadow:var(--shadow-md)}
.btn-block{width:100%}
.btn-sm{padding:9px 18px;font-size:.85rem}

/* ---------- Navbar ---------- */
.navbar{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
}
.navbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem}
.brand img{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a, .nav-links button{font-weight:600;font-size:.95rem;color:var(--ink-700);position:relative;padding:6px 0;background:none;border:0}
.nav-links a:hover, .nav-links a.active, .nav-links button:hover, .nav-links button.active{color:var(--c-blue-700)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;color:var(--ink-900)}
.nav-dropdown{position:relative}
.nav-dropdown > a{display:flex;align-items:center;gap:4px;cursor:pointer;background:none;border:0;font:inherit}
/* Zone tampon invisible qui comble le vide entre le lien et le panneau,
   pour que la souris ne "sorte" jamais de la zone survolable */
.nav-dropdown::after{
  content:"";position:absolute;top:100%;left:50%;transform:translateX(-50%);
  width:260px;height:16px;
}
.nav-dropdown-panel{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-lg);padding:14px;min-width:240px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .15s ease;
  z-index:110;
}
.nav-dropdown.open .nav-dropdown-panel{opacity:1;visibility:visible;pointer-events:auto}
.nav-dropdown-panel a{display:block;padding:9px 12px;border-radius:var(--radius-sm);font-size:.9rem}
.nav-dropdown-panel a:hover{background:var(--surface-alt)}

@media (max-width:920px){
  .nav-links, .nav-cta .btn-outline{display:none}
  .nav-toggle{display:block}
  .navbar.open .nav-links{
    display:flex;flex-direction:column;position:absolute;top:74px;left:0;right:0;
    background:#fff;padding:20px;border-bottom:1px solid var(--border);gap:4px;box-shadow:var(--shadow-md);
  }
  .navbar.open .nav-dropdown::after{display:none}
  .navbar.open .nav-dropdown-panel{position:static;transform:none;box-shadow:none;border:0;padding:6px 0 6px 12px;
    opacity:1;visibility:visible;pointer-events:auto;height:0;overflow:hidden;transition:height .15s ease}
  .navbar.open .nav-dropdown.open .nav-dropdown-panel{height:auto}
}

/* ---------- Hero ---------- */
.hero{
  background:var(--grad-hero);
  color:#fff;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 15%, rgba(255,255,255,.14), transparent 45%);
}
.hero .container{position:relative;padding-block:76px 90px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{color:#fff}
.hero p.lead{color:rgba(255,255,255,.9)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:flex;gap:28px;margin-top:40px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-size:1.6rem;font-weight:800}
.hero-stats div span{font-size:.82rem;color:rgba(255,255,255,.8)}
.hero-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
@media (max-width:860px){ .hero .container{grid-template-columns:1fr} .hero-media{order:-1} }

.page-header{background:var(--grad-soft);border-bottom:1px solid var(--border);padding-block:48px}
.page-header h1{margin-bottom:8px}

/* ---------- Grids & Cards ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){ .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)} }
@media (max-width:600px){ .grid-2,.grid-3,.grid-4{grid-template-columns:1fr} }

.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm); transition:box-shadow .2s ease, transform .2s ease;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card-body{padding:22px}
.card-img{aspect-ratio:16/10;overflow:hidden;border-radius:var(--radius-md) var(--radius-md) 0 0}
.card-img img{width:100%;height:100%;object-fit:cover}

.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:.72rem;font-weight:700;
  padding:4px 11px;border-radius:999px;
}
.badge-blue{background:rgba(21,71,201,.1);color:var(--c-blue-700)}
.badge-green{background:rgba(21,154,74,.12);color:var(--c-green-600)}
.badge-yellow{background:rgba(245,166,35,.15);color:#8a5a08}
.badge-red{background:rgba(232,58,58,.12);color:var(--c-red-500)}
.badge-purple{background:rgba(107,63,214,.12);color:var(--c-purple-600)}

/* ---------- Scholarship card (flagship component) ---------- */
.scholarship-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);position:relative;
}
.scholarship-card:hover{box-shadow:var(--shadow-md)}
.scholarship-card.featured{border:2px solid var(--c-yellow-500)}
.scholarship-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.scholarship-card h3{margin-bottom:2px}
.scholarship-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:.85rem;color:var(--ink-500)}
.scholarship-meta span{display:inline-flex;align-items:center;gap:6px}
.scholarship-actions{display:flex;gap:10px;margin-top:8px;flex-wrap:wrap}

/* ---------- Sections ---------- */
.section-alt{background:var(--surface-alt)}
.section-dark{background:var(--c-blue-900);color:#fff}
.section-dark .muted{color:rgba(255,255,255,.7)}

.cta-banner{
  background:var(--grad-brand);border-radius:var(--radius-lg);color:#fff;
  padding:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.cta-banner h2{color:#fff;margin-bottom:6px}

/* ---------- Forms ---------- */
.form-group{margin-bottom:18px}
label{display:block;font-weight:700;font-size:.88rem;margin-bottom:6px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],
select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--ink-300);border-radius:var(--radius-sm);
  font-size:.95rem;font-family:inherit;background:#fff;color:var(--ink-900);
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--c-blue-700);box-shadow:0 0 0 3px rgba(21,71,201,.12)}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:36px;max-width:480px;margin-inline:auto;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:520px){ .form-row{grid-template-columns:1fr} }
.alert{padding:14px 18px;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:18px}
.alert-success{background:rgba(21,154,74,.1);color:#0d6b34;border:1px solid rgba(21,154,74,.25)}
.alert-error{background:rgba(232,58,58,.1);color:#b32323;border:1px solid rgba(232,58,58,.25)}
.help-text{font-size:.8rem;color:var(--ink-500);margin-top:4px}

/* ---------- Filters bar ---------- */
.filters-bar{
  display:flex;gap:14px;flex-wrap:wrap;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-md);padding:18px;box-shadow:var(--shadow-sm);margin-bottom:28px;
}
.filters-bar select, .filters-bar input{flex:1;min-width:160px}

/* ---------- Progress bar (quiz) ---------- */
.progress-track{height:8px;border-radius:999px;background:var(--ink-100);overflow:hidden}
.progress-fill{height:100%;background:var(--grad-brand);border-radius:999px;transition:width .3s ease}

/* ---------- Dashboard layout ---------- */
.dash-shell{display:grid;grid-template-columns:250px 1fr;gap:0;min-height:70vh}
.dash-sidebar{background:var(--c-blue-900);color:#fff;padding:28px 16px}
.dash-sidebar a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--radius-sm);font-weight:600;font-size:.92rem;color:rgba(255,255,255,.85)}
.dash-sidebar a:hover, .dash-sidebar a.active{background:rgba(255,255,255,.12);color:#fff}
.dash-content{padding:36px;background:var(--surface-alt)}
.dash-stat{background:#fff;border-radius:var(--radius-md);padding:20px;border:1px solid var(--border)}
.dash-stat strong{font-size:1.8rem;display:block}
@media (max-width:800px){
  .dash-shell{grid-template-columns:1fr}
  .dash-sidebar{display:flex;overflow-x:auto;gap:6px;padding:14px}
  .dash-sidebar a{white-space:nowrap}
}

/* ---------- Footer ---------- */
footer{background:var(--c-blue-900);color:rgba(255,255,255,.85);padding-block:56px 28px}
footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
footer a{color:rgba(255,255,255,.7);font-size:.9rem;line-height:2.1}
footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;color:rgba(255,255,255,.6)}
@media (max-width:760px){ .footer-grid{grid-template-columns:1fr 1fr} }
@media (max-width:480px){ .footer-grid{grid-template-columns:1fr} }

/* ---------- Utilities ---------- */
.flex{display:flex}
.flex-between{display:flex;justify-content:space-between;align-items:center}
.gap-8{gap:8px} .gap-12{gap:12px} .gap-20{gap:20px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.skeleton{background:linear-gradient(90deg,#eee,#f5f5f5,#eee);background-size:200% 100%;animation:shimmer 1.4s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}