/* Renkler uygulama ikonundan: gece mavisi küre, limon–yeşil şimşek, nane zemin. */
:root {
  --bg: #f4faf6;
  --surface: #ffffff;
  --text: #0e2230;
  --muted: #4a5f6b;
  --line: #d9e8df;
  --brand: #0b2a3a;
  --accent: #15803d;
  --glow: linear-gradient(135deg, #d4f75a, #2be07f);
  --radius: 18px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #071a24;
    --surface: #0d2533;
    --text: #e8f3ee;
    --muted: #9db3bd;
    --line: #1c3a49;
    --brand: #0d2533;
    --accent: #6ee7a0;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-underline-offset: 3px; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

/* Üst şerit */
.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--text); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.top nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
.top nav a:hover { color: var(--text); }

/* Giriş */
.hero {
  background: radial-gradient(120% 140% at 20% 0%, #14506a 0%, var(--brand) 55%, #061620 100%);
  color: #eaf6f0;
  border-radius: 28px;
  padding: 56px 40px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.hero h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero h1 span { background: var(--glow); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: #b9d3cc; margin: 0 0 24px; font-size: 18px; max-width: 30em; }
.hero img { width: 168px; height: 168px; border-radius: 38px; box-shadow: 0 20px 60px rgba(43, 224, 127, 0.25); }
.badge {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--glow);
  color: #062016;
  font-weight: 700;
  font-size: 15px;
}
.example {
  margin-top: 22px;
  font-size: 15px;
  color: #9fc4b8;
  border-left: 3px solid #2be07f;
  padding-left: 12px;
}

/* Özellikler */
section { padding: 48px 0 8px; }
section h2 { font-size: 26px; margin: 0 0 20px; letter-spacing: -0.01em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.card .icon { font-size: 26px; line-height: 1; }
.card h3 { font-size: 17px; margin: 10px 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { color: var(--muted); margin: 10px 0 0; font-size: 15px; }

/* Metin sayfaları */
.doc { max-width: 720px; padding-bottom: 40px; }
.doc h1 { font-size: 34px; margin: 24px 0 4px; letter-spacing: -0.02em; }
.doc h2 { font-size: 21px; margin: 36px 0 8px; }
.doc .updated { color: var(--muted); font-size: 15px; margin: 0 0 24px; }
.doc .summary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.doc .summary ul { margin: 0; padding-left: 20px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
.doc th { color: var(--muted); font-weight: 600; }
.doc .scroll { overflow-x: auto; }

footer { color: var(--muted); font-size: 14px; padding: 40px 0 48px; border-top: 1px solid var(--line); margin-top: 48px; }
footer a { color: var(--muted); margin-right: 16px; }

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .hero { grid-template-columns: 1fr; padding: 36px 24px; text-align: left; }
  .hero img { width: 96px; height: 96px; border-radius: 22px; order: -1; }
  .top nav a { margin-left: 12px; }
  /* Dar ekranda tablo satırları kart olur, sütun adı her hücrenin üstünde. */
  .doc table, .doc tr, .doc td { display: block; }
  .doc tr.head { display: none; }
  .doc tr { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 6px 14px; margin-bottom: 10px; }
  .doc td { border: 0; padding: 6px 0; }
  .doc td::before { content: attr(data-label); display: block; color: var(--muted); font-size: 13px; font-weight: 600; }
}