/* shared.css — Shatir design tokens (PRD §34)
 * v2.0  2026-05-21 — Brand refresh: DeepSeek-inspired palette + Gemini-style typography.
 *                    Removed "Bacc" terminology positioning (per Mustafa 2026-05-21);
 *                    landing emphasises AI-for-education identity.
 *                    Legacy teal-* aliases retained for pay.css / schools.css until
 *                    a follow-up sweep migrates them to primary-*.
 */
:root {
  /* ── Primary palette — DeepSeek-inspired blue → indigo → purple ── */
  --primary-50:  #EEF0FF;
  --primary-100: #DCE0FE;
  --primary-200: #B8C2FD;
  --primary-300: #95A6FC;
  --primary-400: #6F86FB;
  --primary-500: #4D6BFE;   /* signature accent */
  --primary-600: #3B5BFE;
  --primary-700: #2E4AE5;
  --primary-800: #2238B5;
  --primary-900: #1B2D90;

  --indigo-500: #6366F1;
  --purple-500: #8B5CF6;
  --purple-600: #7C3AED;

  /* ── Ink scale — neutral with slight cool tint (DeepSeek-like) ── */
  --ink-50:  #F7F8FC;
  --ink-100: #EFF1F6;
  --ink-200: #E2E6EE;
  --ink-300: #C7CDD8;
  --ink-500: #6B7280;
  --ink-700: #364152;
  --ink-800: #1F2937;
  --ink-900: #0F1117;       /* near-black DeepSeek body text */

  /* ── Legacy teal aliases (DO NOT delete — pay.css / schools.css still reference) ── */
  --teal-50:  var(--primary-50);
  --teal-100: var(--primary-100);
  --teal-500: var(--primary-500);
  --teal-600: var(--primary-600);
  --teal-700: var(--primary-700);
  --teal-900: var(--primary-900);

  /* ── Legacy slate aliases (mapped to ink) ── */
  --slate-50:  var(--ink-50);
  --slate-100: var(--ink-100);
  --slate-200: var(--ink-200);
  --slate-300: var(--ink-300);
  --slate-500: var(--ink-500);
  --slate-700: var(--ink-700);
  --slate-800: var(--ink-800);
  --slate-900: var(--ink-900);

  /* ── Status colours ── */
  --amber-100: #FEF3C7;
  --amber-500: #F59E0B;
  --rose-100:  #FEE2E2;
  --rose-500:  #EF4444;

  /* ── Radii ── */
  --radius-sm:  10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  /* ── Shadows (DeepSeek-style — soft, blue-tinted) ── */
  --shadow-card: 0 4px 24px rgba(77, 107, 254, 0.08);
  --shadow-elev: 0 16px 48px rgba(77, 107, 254, 0.14);
  --shadow-glow: 0 8px 32px rgba(77, 107, 254, 0.35);

  /* ── Layout ── */
  --container-max: 1180px;
  --gutter: 1.5rem;

  /* ── Typography — Gemini-inspired (Google's own Noto family) ── */
  --font-arabic: 'Noto Sans Arabic', 'Tajawal', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Noto Kufi Arabic', 'Noto Sans Arabic', system-ui, sans-serif;
}

* { box-sizing: border-box; }
*:focus-visible { outline: 3px solid var(--primary-500); outline-offset: 3px; border-radius: 4px; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-arabic);
  background: white;
  color: var(--ink-800);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 800;
  margin: 0 0 0.5rem;
  color: var(--ink-900);
  text-align: center;
  letter-spacing: -0.015em;
}

.section-sub {
  text-align: center;
  color: var(--ink-500);
  font-size: 1.05rem;
  margin: 0 0 2.5rem;
}

/* ── Buttons — DeepSeek-style with glow ──────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
  cursor: pointer;
  border: 2px solid transparent;
  font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  background: var(--primary-600);
  box-shadow: 0 12px 36px rgba(77, 107, 254, 0.45);
}
.btn-secondary {
  background: white;
  color: var(--primary-600);
  border-color: var(--primary-200);
}
.btn-secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-500);
}

/* ── Header ──────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--ink-100);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}
.brand { display: flex; flex-direction: column; text-decoration: none; }
.brand-mark {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-600), var(--purple-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  letter-spacing: -0.02em;
}
.brand-tagline { font-size: 0.75rem; color: var(--ink-500); margin-top: 3px; font-weight: 500; }
.site-nav { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.site-nav a {
  color: var(--ink-700);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--primary-600); }
.nav-portal {
  background: var(--primary-50);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--primary-200);
  color: var(--primary-700) !important;
  font-weight: 700 !important;
}
.nav-portal:hover {
  background: var(--primary-100);
  border-color: var(--primary-500);
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--ink-900);
  color: var(--ink-200);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-300), var(--purple-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.site-footer h4 { color: white; margin: 0 0 0.7rem; font-size: 0.95rem; font-weight: 700; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.site-footer a { color: var(--ink-200); text-decoration: none; font-weight: 500; font-size: 0.9rem; transition: color 0.15s ease; }
.site-footer a:hover { color: var(--primary-300); }
.site-footer p { color: var(--ink-300); margin: 0.5rem 0 0; font-size: 0.9rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.2rem;
  font-size: 0.8rem;
  color: var(--ink-500);
}
.footer-version { opacity: 0.5; font-family: 'JetBrains Mono', ui-monospace, monospace; }

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; }
  .site-nav { gap: 0.7rem; font-size: 0.85rem; }
}