/* ==========================================================
   EduGlobal - components.css
   Navigation, hero, sections, cards, footer.
   ========================================================== */

/* ---------- Navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: rgba(6, 21, 46, 0.86);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: border-color 0.2s;
}
.site-header.scrolled { border-color: var(--line); }
.nav { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand img { height: 42px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a:not(.btn) { color: var(--muted); font-weight: 600; font-size: 0.93rem; transition: color 0.2s; }
.nav-links a:not(.btn):hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-actions { display: flex; align-items: center; gap: 0.6rem; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line); color: var(--white);
  width: 42px; height: 42px; border-radius: 10px; cursor: pointer; align-items: center; justify-content: center;
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    position: fixed; inset: var(--nav-h) 0 auto 0; background: var(--navy-2);
    border-bottom: 1px solid var(--line); padding: 1.2rem 1.25rem 1.6rem;
    display: none; flex-direction: column; align-items: stretch; gap: 1.2rem;
  }
  .nav-menu.open { display: flex; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-links a:not(.btn) { padding: 0.85rem 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav-actions { flex-direction: column; align-items: stretch; }
  .nav-actions .btn { width: 100%; }
}
@media (min-width: 881px) {
  .nav-menu { display: flex; align-items: center; gap: 2rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; padding: clamp(3rem, 9vw, 6.5rem) 0 clamp(3rem, 8vw, 5.5rem);
  background:
    radial-gradient(60% 55% at 85% 10%, rgba(22, 139, 255, 0.28), transparent 70%),
    radial-gradient(40% 40% at 5% 95%, rgba(255, 200, 61, 0.1), transparent 70%),
    var(--navy);
}
.hero-grid { display: grid; gap: 3rem; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.15fr 0.85fr; } }
.hero h1 .gold { color: var(--gold); }
.hero .lead { font-size: clamp(1.02rem, 2.4vw, 1.2rem); max-width: 34rem; margin-bottom: 1.8rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.hero-note { margin-top: 1.4rem; font-size: 0.88rem; color: var(--muted); }
.hero-note strong { color: var(--white); }

.hero-panel {
  background: linear-gradient(160deg, var(--navy-3), var(--navy-2));
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.6rem; box-shadow: var(--glow);
}
.hero-panel h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.panel-list { display: grid; gap: 0.7rem; }
.panel-item { display: flex; gap: 0.9rem; align-items: flex-start; padding: 0.85rem; border-radius: var(--radius); background: rgba(6, 21, 46, 0.55); border: 1px solid var(--line); }
.panel-item .icon { color: var(--blue-soft); width: 1.5em; height: 1.5em; margin-top: 2px; }
.panel-item strong { display: block; font-size: 0.97rem; }
.panel-item span { font-size: 0.86rem; color: var(--muted); line-height: 1.45; display: block; }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 5rem) 0; }
.section-alt { background: var(--navy-2); border-block: 1px solid var(--line); }
.section-head { max-width: 40rem; margin-bottom: 2.2rem; }
.section-head p { font-size: 1.02rem; }

.grid { display: grid; gap: 1.1rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(170deg, var(--navy-3), var(--navy-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
a.card:hover, .card.hoverable:hover { border-color: rgba(22, 139, 255, 0.6); box-shadow: var(--glow); }
.card h3 { margin-bottom: 0.4rem; }
.card p { margin: 0; font-size: 0.93rem; }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 1rem;
  background: rgba(22, 139, 255, 0.14); color: var(--blue-soft); border: 1px solid rgba(22, 139, 255, 0.3);
}
.card-icon.gold { background: rgba(255, 200, 61, 0.12); color: var(--gold); border-color: rgba(255, 200, 61, 0.3); }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.9rem; }
.chip { padding: 0.3rem 0.75rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; color: var(--blue-soft); background: rgba(22, 139, 255, 0.1); border: 1px solid rgba(22, 139, 255, 0.25); }
.chip.gold { color: var(--gold); background: rgba(255, 200, 61, 0.08); border-color: rgba(255, 200, 61, 0.28); }

/* ---------- How it works (a real sequence, so numbered) ---------- */
.steps { counter-reset: step; }
.step { position: relative; padding-top: 3.4rem; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 1.2rem; left: 1.4rem; width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; font-size: 0.9rem; color: #1a1300;
  background: linear-gradient(135deg, #ffe08a, var(--gold));
}

/* ---------- Empty state ---------- */
.empty {
  text-align: center; padding: 2.6rem 1.4rem; border: 1px dashed rgba(120, 170, 255, 0.35);
  border-radius: var(--radius-lg); background: rgba(11, 32, 64, 0.5);
}
.empty .card-icon { margin-inline: auto; }
.empty p { max-width: 30rem; margin-inline: auto; margin-bottom: 1.2rem; }

/* ---------- International split ---------- */
.split { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; gap: 3rem; } }
.country-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
.country { padding: 0.75rem 1rem; border-radius: var(--radius); background: var(--navy-3); border: 1px solid var(--line); font-weight: 600; font-size: 0.93rem; }
.country.more { color: var(--gold); border-style: dashed; }

/* ---------- Call to action ---------- */
.cta {
  text-align: center; padding: clamp(2.4rem, 6vw, 4rem) 1.4rem; border-radius: var(--radius-lg);
  background: radial-gradient(70% 120% at 50% 0%, rgba(22, 139, 255, 0.35), transparent 70%), linear-gradient(160deg, var(--navy-3), var(--navy-2));
  border: 1px solid rgba(22, 139, 255, 0.4); box-shadow: var(--glow);
}
.cta p { max-width: 32rem; margin-inline: auto; margin-bottom: 1.6rem; }
.cta .hero-cta { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer { background: #040e20; border-top: 1px solid var(--line); padding: 3.2rem 0 1.6rem; margin-top: 0; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.footer-grid h4 { font-size: 0.95rem; margin-bottom: 0.8rem; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: var(--muted); font-size: 0.92rem; transition: color 0.2s; }
.footer-grid a:hover { color: var(--white); }
.footer-brand img { height: 40px; width: auto; margin-bottom: 0.8rem; }
.footer-brand p { font-size: 0.92rem; max-width: 20rem; }
.footer-bottom { margin-top: 2.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem; font-size: 0.85rem; color: var(--muted); }
.footer-bottom p { margin: 0; }

/* ==========================================================
   PREMIUM POLISH (added in Stage 2 upgrade)
   ========================================================== */

/* Subtle grid behind the hero, faded at the edges */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 170, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, 0.07) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(75% 85% at 70% 30%, #000 25%, transparent 78%);
  mask-image: radial-gradient(75% 85% at 70% 30%, #000 25%, transparent 78%);
}
.hero .container { position: relative; z-index: 1; }

/* Headline: gold gradient */
.hero h1 .gold {
  background: linear-gradient(100deg, #ffe08a 10%, #ffc83d 55%, #f0a500);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Globe sits behind a glass panel */
.hero-visual { position: relative; }
.hero-globe {
  position: absolute; width: 125%; max-width: 560px; right: -14%; top: -22%;
  z-index: 0; filter: drop-shadow(0 0 40px rgba(22, 139, 255, 0.45));
}
.orbit { transform-origin: 200px 200px; animation: spin 90s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-panel {
  position: relative; z-index: 1;
  background: linear-gradient(160deg, rgba(17, 41, 77, 0.78), rgba(11, 32, 64, 0.72));
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
@media (max-width: 959px) { .hero-globe { right: -30%; top: -18%; width: 110%; opacity: 0.55; } }

/* Facts strip */
.facts { border-block: 1px solid var(--line); background: linear-gradient(90deg, rgba(22, 139, 255, 0.08), rgba(255, 200, 61, 0.05)); }
.facts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1.4rem; padding-block: 1.6rem; }
.facts-grid strong { display: block; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; color: var(--white); }
.facts-grid span { font-size: 0.86rem; color: var(--muted); }

/* Cards: gradient edge and soft top light */
.card { position: relative; background: linear-gradient(180deg, rgba(22, 139, 255, 0.07), transparent 40%), linear-gradient(170deg, var(--navy-3), var(--navy-2)); }
a.card:hover, .card.hoverable:hover { transform: translateY(-3px); }
a.card { transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s; }

/* Section dividers: thin glowing line */
.section-alt { position: relative; }
.section-alt::before {
  content: ""; position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: min(60%, 520px); height: 1px; background: linear-gradient(90deg, transparent, var(--blue), transparent);
}

/* Buttons: soft glow on hover */
.btn-primary:hover { box-shadow: 0 10px 34px -6px rgba(22, 139, 255, 0.9); }
.btn-gold:hover { box-shadow: 0 10px 34px -8px rgba(255, 200, 61, 0.85); }