/* Ustaz public landing page — styles
   Design contract: design/CURRENT.md + docs/DECISIONS.md D1e/D1f (Mizan violet palette).
   Written with CSS logical properties so the single stylesheet works for both the
   English (ltr) page and the Arabic (rtl) page without duplication. */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f5f4f7;
  --surface-3: #ecebf0;
  --border: #dedbe4;
  --border-strong: #b9b3c5;
  --text: #19151f;
  --text-muted: #615b69;
  --primary: #5932d9;
  --on-primary: #ffffff;
  --primary-soft: #f0eaff;
  --on-primary-soft: #4521b3;
  --success: #0e6b45;
  --success-soft: #e1f0e8;
  --on-success-soft: #0a5334;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "Noto Sans Arabic", "Geeza Pro", "Arabic Typesetting", sans-serif;

  --container: 1200px;
  --radius: 14px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #100e15;
    --surface: #1a1721;
    --surface-2: #231f2c;
    --surface-3: #2d2738;
    --border: #393142;
    --border-strong: #51465f;
    --text: #f5f1fa;
    --text-muted: #bdb5c9;
    --primary: #bca7ff;
    --on-primary: #211044;
    --primary-soft: #30224f;
    --on-primary-soft: #dfd3ff;
    --success: #54c490;
    --success-soft: #0f2c22;
    --on-success-soft: #8cdcb4;
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.55;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  inset-inline-start: -999px;
  top: auto;
  background: var(--primary);
  color: var(--on-primary);
  padding: var(--space-1) var(--space-2);
  border-radius: 0 0 8px 0;
  z-index: 10;
}

.skip-link:focus {
  position: fixed;
  inset-inline-start: 0;
  top: 0;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* ---------- header ---------- */

.site-header {
  border-block-end: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: var(--space-2);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: none;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.lang-switch {
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}

.lang-switch:hover {
  background: var(--surface-2);
}

/* ---------- hero ---------- */

.hero {
  padding-block: var(--space-5) var(--space-4);
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--on-primary-soft);
  background: var(--primary-soft);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-block-end: var(--space-3);
}

.hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.2rem);
  line-height: 1.15;
  margin: 0 0 var(--space-3);
  max-width: 20ch;
  margin-inline: auto;
}

[lang="ar"] .hero h1 {
  max-width: 18ch;
}

.hero .promise {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  max-width: 42ch;
  margin: 0 auto var(--space-4);
}

.cta-row {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

.pilot-note {
  margin: var(--space-2) 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.btn {
  display: inline-block;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover {
  opacity: 0.92;
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary-soft);
}

/* ---------- sections ---------- */

section {
  padding-block: var(--space-5);
}

section + section {
  border-block-start: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 44ch;
  margin-inline: auto;
  margin-block-end: var(--space-4);
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin: 0 0 var(--space-1);
}

.section-head p {
  color: var(--text-muted);
  margin: 0;
}

.card-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--text-muted);
}

/* ---------- teachers / promise box ---------- */

.promise-box {
  background: var(--success-soft);
  color: var(--on-success-soft);
  border-radius: var(--radius);
  padding: var(--space-3);
  font-weight: 700;
  font-size: 1.05rem;
  margin-block: var(--space-3);
  max-width: 56ch;
  margin-inline: auto;
  text-align: center;
}

.teachers-cta {
  text-align: center;
  margin-block-start: var(--space-4);
}

/* ---------- fees ---------- */

.fee-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  margin-block-end: var(--space-1);
}

.fee-table {
  max-width: 480px;
  margin-inline: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.fee-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
}

.fee-row + .fee-row {
  border-block-start: 1px solid var(--border);
}

.fee-row.total {
  background: var(--success-soft);
  color: var(--on-success-soft);
  font-weight: 800;
}

.fee-row .amount {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.fee-caption {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 48ch;
  margin: var(--space-3) auto 0;
}

/* ---------- coming next ---------- */

.next-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 56ch;
  display: grid;
  gap: var(--space-2);
}

.next-list li {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.next-list strong {
  display: block;
  margin-block-end: 0.2rem;
}

.status-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-primary-soft);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  margin-inline-start: 0.4rem;
}

/* ---------- footer ---------- */

.site-footer {
  border-block-start: 1px solid var(--border);
  padding-block: var(--space-4);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0.3rem 0;
}