/* Free Sudoku — freesudoku.app. One file, mobile first (360px), logical properties for RTL. */

:root {
  --accent: #2E86ED;
  --accent-deep: #1B5FB8;
  --bg: #ffffff;
  --bg-soft: #F0F4F9;
  --surface: #ffffff;
  --text: #232B48;
  --text-2: #5C6475;
  --line: #E2E8F1;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(35, 43, 72, 0.10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #248BF2;
    --accent-deep: #0A5BAD;
    --bg: #131418;
    --bg-soft: #1E1F25;
    --surface: #1E1F25;
    --text: #EBEBF5;
    --text-2: #A2A8B8;
    --line: #32343D;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

/* Arabic: system Arabic stack, never letter-spacing */
:lang(ar) body,
body[dir="rtl"] {
  font-family: "Segoe UI", Tahoma, "Noto Sans Arabic", "Geeza Pro", "Cairo", system-ui, sans-serif;
  letter-spacing: 0;
}

h1, h2, h3 { line-height: 1.25; color: var(--text); }
h1 { font-size: 1.7rem; margin: 0 0 0.6em; }
h2 { font-size: 1.35rem; margin: 1.6em 0 0.6em; }
h3 { font-size: 1.05rem; margin: 0 0 0.35em; }
p { margin: 0.5em 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

.wrap { max-width: 1020px; margin-inline: auto; padding-inline: 20px; }

.skip {
  position: absolute; inset-inline-start: -999px; top: 0;
  background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 0 0 8px 0; z-index: 10;
}
.skip:focus { inset-inline-start: 0; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-in { display: flex; align-items: center; gap: 16px; min-height: 56px; flex-wrap: wrap; padding-block: 6px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.site-header nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.92rem; }
.site-header nav a { color: var(--text-2); }
.site-header nav a[aria-current] { color: var(--accent); font-weight: 600; }
.langs { margin-inline-start: auto; }
.langs a { padding: 2px 6px; border-radius: 8px; }

/* Hero */
.hero {
  display: flex; flex-direction: column; align-items: center; gap: 28px;
  padding: 40px 20px 48px;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
  text-align: center;
}
.hero-text { max-width: 620px; }
.hero .lead { font-size: 1.05rem; color: var(--text-2); margin-bottom: 1.4em; }
.phone {
  width: min(260px, 68vw);
  border-radius: 22px;
  border: 6px solid var(--surface);
  box-shadow: var(--shadow);
  display: block;
}

/* Google Play button */
.play-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--accent); color: #fff;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  box-shadow: 0 4px 14px rgba(46, 134, 237, 0.4);
}
.play-btn:hover { background: var(--accent-deep); text-decoration: none; }

/* Feature cards */
.cards { list-style: none; padding: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.cards li { background: var(--bg-soft); border-radius: var(--radius); padding: 18px 18px 14px; }
.cards p { color: var(--text-2); font-size: 0.95rem; margin: 0; }

/* Screenshots */
.shots { list-style: none; padding: 0; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.shots figure { margin: 0; text-align: center; }
.shots figcaption { font-size: 0.88rem; color: var(--text-2); margin-top: 8px; }

/* Steps */
.steps { padding-inline-start: 0; list-style: none; counter-reset: step; display: grid; gap: 12px; }
.steps li { background: var(--bg-soft); border-radius: var(--radius); padding: 16px 18px; }
.steps p { color: var(--text-2); margin: 0; }

/* FAQ — details/summary, no JS */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--bg-soft); border-radius: var(--radius); padding: 2px 18px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; }
.faq summary:hover { color: var(--accent); }
.faq details p { color: var(--text-2); margin-top: 0; padding-bottom: 14px; }

/* Prose (legal + articles) */
.prose { max-width: 760px; }
.prose p, .prose li { color: var(--text-2); }
.prose strong { color: var(--text); }
.prose ul { padding-inline-start: 20px; }

/* Breadcrumb */
.breadcrumb { font-size: 0.88rem; padding-top: 14px; }
.breadcrumb ol { list-style: none; display: flex; gap: 8px; margin: 0; padding: 0; color: var(--text-2); }
.breadcrumb li + li::before { content: "/"; margin-inline-end: 8px; color: var(--text-2); }

/* CTA band */
.cta { background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%); color: #fff; padding: 44px 0; }
.cta-in { display: flex; flex-direction: column; align-items: center; gap: 22px; text-align: center; }
.cta h2 { color: #fff; margin: 0; }
.cta p { color: rgba(255, 255, 255, 0.9); margin: 0.4em 0 0; max-width: 560px; }
.cta .play-btn { background: #fff; color: var(--accent-deep); box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2); }
.cta .play-btn:hover { background: var(--bg-soft); }

/* Footer */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--line); padding: 28px 0 36px; margin-top: 56px; }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 0.9rem; margin-bottom: 10px; }
.site-footer nav a { color: var(--text-2); }
.site-footer p { color: var(--text-2); font-size: 0.85rem; margin: 0.3em 0; }

@media (min-width: 720px) {
  .hero { flex-direction: row; text-align: start; justify-content: space-between; padding: 64px 32px 72px; gap: 48px; }
  h1 { font-size: 2.2rem; }
  .cta-in { flex-direction: row; justify-content: space-between; text-align: start; }
  .cta p { margin: 0; }
}