/* Edu-Techno — Modern EdTech SaaS theme
   Soft blue/white palette, clean typography, fully responsive, RTL-aware. */

:root {
  --c-primary: #2563eb;
  --c-primary-600: #1d4ed8;
  --c-primary-50: #eff6ff;
  --c-accent: #06b6d4;
  --c-ink: #0f172a;
  --c-ink-2: #334155;
  --c-muted: #64748b;
  --c-line: #e2e8f0;
  --c-bg: #ffffff;
  --c-bg-soft: #f8fafc;
  --c-success: #10b981;
  --c-warn: #f59e0b;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .05);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, .08), 0 2px 6px rgba(15, 23, 42, .04);
  --shadow-lg: 0 18px 40px rgba(15, 23, 42, .12);
  --container: 1180px;
  --gap: 24px;
  --transition: .2s ease;
  --font-en: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-ar: 'Cairo', 'Tajawal', system-ui, -apple-system, 'Segoe UI', Tahoma, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-en);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
html[lang="ar"] body { font-family: var(--font-ar); }

img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-primary-600); }

h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.25; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw + 1rem, 3.4rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem); letter-spacing: -.01em; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--c-ink-2); }
.lead { font-size: 1.15rem; color: var(--c-ink-2); }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 22px; }

/* ====== Header ====== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--c-line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; color: var(--c-ink);
  font-size: 1.15rem;
}
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  display: grid; place-items: center; color: #fff; font-weight: 800;
  box-shadow: var(--shadow-sm);
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  display: inline-block; padding: 10px 14px; border-radius: 10px;
  color: var(--c-ink-2); font-weight: 500; font-size: .96rem;
}
.nav-links a:hover, .nav-links a.active { background: var(--c-primary-50); color: var(--c-primary-600); }
.nav-right { display: inline-flex; align-items: center; gap: 10px; }
.lang-switch {
  display: inline-flex; align-items: center; gap: 0;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: 999px; padding: 3px;
  font-size: .85rem; font-weight: 600;
}
.lang-switch a {
  padding: 6px 12px; border-radius: 999px; color: var(--c-muted);
}
.lang-switch a.active { background: var(--c-primary); color: #fff; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 12px; font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--c-primary-600); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: #fff; color: var(--c-primary); border-color: var(--c-line); }
.btn-outline:hover { border-color: var(--c-primary); color: var(--c-primary-600); }
.btn-ghost { background: transparent; color: var(--c-ink-2); }
.btn-ghost:hover { background: var(--c-bg-soft); color: var(--c-ink); }
.btn-lg { padding: 14px 22px; font-size: 1rem; border-radius: 14px; }

.menu-toggle {
  display: none; background: transparent; border: 1px solid var(--c-line);
  width: 42px; height: 42px; border-radius: 10px; cursor: pointer;
  align-items: center; justify-content: center;
}
.menu-toggle span { width: 18px; height: 2px; background: var(--c-ink); position: relative; display: inline-block; }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--c-ink); }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

@media (max-width: 920px) {
  .menu-toggle { display: inline-flex; }
  .nav-links {
    position: absolute; top: 70px; inset-inline-start: 0; inset-inline-end: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--c-line);
    padding: 10px 16px 16px; display: none;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; border-radius: 10px; }
}

/* ====== Hero ====== */
.hero {
  position: relative; overflow: hidden;
  padding: 80px 0 70px;
  background:
    radial-gradient(1200px 500px at 80% -10%, #dbeafe 0%, transparent 60%),
    radial-gradient(900px 400px at 0% 0%, #cffafe 0%, transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}
html[dir="rtl"] .hero {
  background:
    radial-gradient(1200px 500px at 20% -10%, #dbeafe 0%, transparent 60%),
    radial-gradient(900px 400px at 100% 0%, #cffafe 0%, transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; gap: 30px; } }
.hero h1 .grad {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { max-width: 580px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--c-line); padding: 6px 12px;
  border-radius: 999px; font-size: .82rem; font-weight: 600; color: var(--c-primary-600);
  box-shadow: var(--shadow-sm); margin-bottom: 18px;
}
.hero-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-success); }

/* Hero illustration (pure CSS mock) */
.hero-mock {
  position: relative; aspect-ratio: 4/3; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #1e3a8a 0%, #0e7490 100%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero-mock::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(closest-side at 30% 30%, rgba(255,255,255,.2), transparent 60%);
}
.hero-mock .frame {
  position: absolute; inset: 18px; border-radius: 14px; background: #fff;
  display: grid; grid-template-rows: 36px 1fr; overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
}
.hero-mock .bar {
  background: #f1f5f9; border-bottom: 1px solid var(--c-line);
  display: flex; align-items: center; gap: 6px; padding: 0 12px;
}
.hero-mock .bar i { width: 10px; height: 10px; border-radius: 50%; background: #cbd5e1; }
.hero-mock .bar i:nth-child(1) { background: #f87171; }
.hero-mock .bar i:nth-child(2) { background: #fbbf24; }
.hero-mock .bar i:nth-child(3) { background: #34d399; }
.hero-mock .body {
  padding: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.hero-mock .tile {
  border-radius: 10px; padding: 14px; color: #fff; min-height: 90px; cursor: pointer;
  display: flex; flex-direction: column; justify-content: space-between;
  font-size: .82rem; font-weight: 600;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
}
.hero-mock .tile.alt { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.hero-mock .tile.green { background: linear-gradient(135deg, #10b981, #06b6d4); }
.hero-mock .tile.amber { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.hero-mock .tile .play {
  width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,.25);
  display: grid; place-items: center;
}

/* ====== Section base ====== */
.section { padding: 70px 0; }
.section.alt { background: var(--c-bg-soft); }
.section-head { max-width: 760px; margin: 0 auto 36px; text-align: center; }
.section-head .eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-primary-600); margin-bottom: 10px;
}
.section-head h2 { margin-bottom: 10px; }

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

.card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--c-primary-50); color: var(--c-primary-600); margin-bottom: 14px;
  font-size: 1.2rem;
}
.card h3 { margin-bottom: 6px; }
.card p { margin: 0; color: var(--c-ink-2); }

/* Game card */
.game-card { padding: 0; overflow: hidden; cursor: pointer; }
.game-thumb {
  aspect-ratio: 16/10; position: relative; color: #fff;
  display: grid; place-items: center;
  cursor: pointer;
}
.game-thumb .label {
  position: absolute; top: 12px; inset-inline-start: 12px;
  background: rgba(255,255,255,.18); backdrop-filter: blur(6px);
  padding: 4px 10px; border-radius: 999px; font-size: .75rem; font-weight: 600;
}
.game-thumb .play-btn {
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(255,255,255,.95); color: var(--c-primary-600);
  display: grid; place-items: center; font-size: 1.4rem;
  box-shadow: 0 10px 25px rgba(0,0,0,.18);
  transition: transform var(--transition);
  border: 0; cursor: pointer;
}
.game-card:hover .play-btn { transform: scale(1.08); }
.game-thumb.t1 { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.game-thumb.t2 { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.game-thumb.t3 { background: linear-gradient(135deg, #10b981, #14b8a6); }
.game-thumb.t4 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.game-thumb.t5 { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.game-thumb.t6 { background: linear-gradient(135deg, #ec4899, #f97316); }
.game-meta { padding: 18px 20px 20px; }
.game-meta h3 { margin: 0 0 4px; font-size: 1.05rem; }
.game-meta p { font-size: .92rem; margin: 0 0 12px; }

/* ====== Video placeholder ====== */
.video-wrap {
  position: relative; aspect-ratio: 16/9; border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
}
.video-wrap::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(closest-side at 50% 50%, rgba(255,255,255,.18), transparent 70%);
}
.video-wrap .play-circle {
  position: absolute; inset: 0; margin: auto;
  width: 92px; height: 92px; border-radius: 50%;
  background: rgba(255,255,255,.96); color: var(--c-primary-600);
  display: grid; place-items: center; font-size: 2rem;
  box-shadow: 0 14px 40px rgba(0,0,0,.3);
  transition: transform var(--transition);
}
.video-wrap:hover .play-circle { transform: scale(1.06); }
.video-wrap .ribbon {
  position: absolute; top: 16px; inset-inline-start: 16px; color: #fff;
  background: rgba(255,255,255,.14); padding: 6px 12px; border-radius: 999px;
  font-size: .8rem; font-weight: 600; backdrop-filter: blur(6px);
}

/* ====== Stats ====== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
@media (max-width: 800px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 22px; text-align: center;
}
.stat .num {
  font-size: 2rem; font-weight: 800; color: var(--c-primary-600);
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .lbl { color: var(--c-muted); font-size: .9rem; margin-top: 4px; }

/* ====== Feature list / problem-solution ====== */
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
@media (max-width: 800px) { .split-grid { grid-template-columns: 1fr; } }
.list-clean { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.list-clean li {
  display: flex; gap: 12px; align-items: flex-start;
  background: #fff; border: 1px solid var(--c-line);
  padding: 14px 16px; border-radius: 12px;
}
.list-clean li .bullet {
  width: 28px; height: 28px; border-radius: 8px; flex-shrink: 0;
  display: grid; place-items: center; font-weight: 700;
  background: var(--c-primary-50); color: var(--c-primary-600);
}
.list-clean.danger li .bullet { background: #fef2f2; color: #ef4444; }
.list-clean.success li .bullet { background: #ecfdf5; color: var(--c-success); }
.list-clean li b { display: block; color: var(--c-ink); margin-bottom: 2px; }

/* ====== Testimonials ====== */
.quote {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 24px;
}
.quote p { font-style: italic; color: var(--c-ink); }
.quote .who { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
.quote .avatar {
  width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff; display: grid; place-items: center; font-weight: 700;
}
.quote .who b { display: block; }
.quote .who span { color: var(--c-muted); font-size: .9rem; }

/* ====== CTA banner ====== */
.cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #0e7490 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 44px;
  display: grid; grid-template-columns: 1fr auto; gap: 22px; align-items: center;
  box-shadow: var(--shadow-lg);
}
@media (max-width: 800px) { .cta-banner { grid-template-columns: 1fr; text-align: center; } }
.cta-banner h2 { color: #fff; margin: 0 0 6px; }
.cta-banner p { color: rgba(255,255,255,.85); margin: 0; }
.cta-banner .btn-primary { background: #fff; color: var(--c-primary-600); }
.cta-banner .btn-primary:hover { background: #f1f5f9; color: var(--c-primary-600); }
.cta-banner .btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.cta-banner .btn-outline:hover { background: rgba(255,255,255,.1); color: #fff; border-color: #fff; }

/* ====== Forms ====== */
.form-grid { display: grid; gap: 14px; }
.form-grid .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .form-grid .row { grid-template-columns: 1fr; } }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; color: var(--c-ink); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--c-line); background: #fff; font: inherit; color: var(--c-ink);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}
.field textarea { min-height: 130px; resize: vertical; }
.form-success {
  background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46;
  padding: 12px 14px; border-radius: 10px; font-weight: 600; display: none;
}
.form-success.show { display: block; }
.form-error {
  background: #fee2e2; border: 1px solid #fca5a5; color: #991b1b;
  padding: 12px 14px; border-radius: 10px; font-weight: 600; display: none;
}
.form-error.show { display: block; }

/* ====== Footer ====== */
.site-footer {
  background: #0b1220; color: #cbd5e1; padding: 56px 0 28px; margin-top: 70px;
}
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px;
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid .brand { color: #fff; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin-top: 36px; padding-top: 18px; border-top: 1px solid #1e293b;
  font-size: .9rem; color: #94a3b8;
}

/* ====== WhatsApp floating ====== */
.wa-float {
  position: fixed; bottom: 20px; inset-inline-end: 20px; z-index: 60;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; color: #fff;
  display: grid; place-items: center; font-size: 1.6rem;
  box-shadow: 0 10px 25px rgba(37,211,102,.45);
  text-decoration: none;
  transition: transform var(--transition);
}
.wa-float:hover { transform: scale(1.06); color: #fff; }

/* ====== Misc ====== */
.muted { color: var(--c-muted); }
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 12px; }
.mt-2 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 24px; }
.flex-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Page hero (smaller) */
.page-hero {
  padding: 60px 0 30px;
  background:
    radial-gradient(900px 360px at 80% 0%, #dbeafe 0%, transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  text-align: center;
}
.page-hero h1 { margin-bottom: 12px; }
.page-hero p { max-width: 720px; margin: 0 auto; }

/* Dashboard mockup */
.dash-mock {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 22px; box-shadow: var(--shadow-md);
}
.dash-mock .top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.dash-mock .top h3 { margin: 0; }
.dash-mock .kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 18px; }
@media (max-width: 600px) { .dash-mock .kpis { grid-template-columns: 1fr; } }
.dash-mock .kpi {
  border: 1px solid var(--c-line); border-radius: 12px; padding: 14px;
  background: var(--c-bg-soft);
}
.dash-mock .kpi .l { color: var(--c-muted); font-size: .8rem; }
.dash-mock .kpi .v { font-size: 1.5rem; font-weight: 800; color: var(--c-ink); }
.dash-mock .chart {
  height: 180px; border-radius: 12px;
  background:
    linear-gradient(180deg, transparent 0 70%, rgba(37,99,235,.06) 70% 100%),
    linear-gradient(90deg, transparent 0 1px, rgba(15,23,42,.05) 1px 1px) 0 0/40px 40px,
    linear-gradient(0deg, transparent 0 1px, rgba(15,23,42,.05) 1px 1px) 0 0/40px 40px,
    #fff;
  border: 1px solid var(--c-line);
  position: relative; overflow: hidden;
}
.dash-mock .chart svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* Code block */
pre.code {
  background: #0b1220; color: #e2e8f0; padding: 18px; border-radius: var(--radius);
  overflow: auto; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .9rem;
  line-height: 1.55; box-shadow: var(--shadow-sm);
}
pre.code .k { color: #93c5fd; }
pre.code .s { color: #86efac; }
pre.code .c { color: #94a3b8; font-style: italic; }
pre.code .f { color: #fbbf24; }

/* RTL tweaks */
html[dir="rtl"] .hero-cta,
html[dir="rtl"] .cta-banner,
html[dir="rtl"] .footer-bottom { direction: rtl; }
html[dir="rtl"] .lang-switch { direction: ltr; } /* keep EN | AR readable */
html[dir="rtl"] pre.code { direction: ltr; text-align: left; }