/* Oltabaşı — oltabasi.com. Palet tasarım setiyle aynı. Harici font yok (gizlilik: Google Fonts'a IP gitmesin). */
:root {
  --lacivert: #0B2A4F;
  --deniz: #12588F;
  --camgobegi: #1EB8D6;
  --gunes: #F6A816;
  --kagit: #F4F7FA;
  --metin: #1B2733;
  --soluk: #5A6B7D;
  --cizgi: #DCE4EC;
  --beyaz: #FFFFFF;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--kagit);
  color: var(--metin);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--deniz); }
img { max-width: 100%; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 max(16px, env(safe-area-inset-left)); }

header { background: var(--lacivert); color: var(--beyaz); }
header .bar { display: flex; align-items: center; gap: 12px; max-width: 960px; margin: 0 auto; padding: 12px 16px; flex-wrap: wrap; }
header img { width: 36px; height: 36px; border-radius: 8px; }
header .brand { color: var(--beyaz); font-weight: 800; font-size: 1.15rem; text-decoration: none; letter-spacing: .01em; }
header nav { margin-left: auto; display: flex; gap: 16px; flex-wrap: wrap; }
header nav a { color: #CFE3F5; text-decoration: none; font-size: .95rem; }
header nav a:hover { color: var(--beyaz); }

.hero { background: linear-gradient(160deg, var(--lacivert) 0%, var(--deniz) 70%, #167AAE 100%); color: var(--beyaz); padding: 56px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; text-wrap: balance; }
.hero p { font-size: 1.15rem; color: #D7E8F6; max-width: 34em; margin: 0 0 24px; }
.hero .logo { width: 180px; height: 180px; border-radius: 36px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.rozet { display: inline-block; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); color: var(--beyaz); border-radius: 999px; padding: 8px 16px; font-weight: 600; font-size: .95rem; }
.rozet b { color: var(--gunes); }

section { padding: 48px 0; }
section h2 { font-size: 1.6rem; margin: 0 0 24px; color: var(--lacivert); text-wrap: balance; }
.ozellikler { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.kart { background: var(--beyaz); border: 1px solid var(--cizgi); border-radius: 16px; padding: 20px; }
.kart h3 { margin: 0 0 8px; font-size: 1.05rem; color: var(--lacivert); }
.kart p { margin: 0; color: var(--soluk); font-size: .97rem; }
.kart .ikon { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: #E3F6FA; color: var(--deniz); font-size: 1.2rem; margin-bottom: 12px; }

.plus { background: var(--beyaz); border-top: 1px solid var(--cizgi); border-bottom: 1px solid var(--cizgi); }
.plus .wrap { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.plus ul { margin: 0; padding-left: 20px; }
.fiyat { font-size: 1.05rem; }
.fiyat strong { color: var(--lacivert); }

.doc { background: var(--beyaz); border: 1px solid var(--cizgi); border-radius: 16px; padding: 32px max(16px, 4vw); margin: 32px auto; max-width: 820px; }
.doc h1 { color: var(--lacivert); margin-top: 0; font-size: 1.9rem; text-wrap: balance; }
.doc h2 { color: var(--lacivert); font-size: 1.25rem; margin-top: 32px; }
.doc .updated { color: var(--soluk); margin-top: -8px; }
.doc .tablo { overflow-x: auto; }
.doc table { border-collapse: collapse; width: 100%; font-size: .95rem; min-width: 520px; }
.doc th, .doc td { border: 1px solid var(--cizgi); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--kagit); }
.not { background: #FFF6E3; border-left: 4px solid var(--gunes); padding: 12px 16px; border-radius: 8px; }

footer { background: var(--lacivert); color: #AFC6DB; font-size: .9rem; padding: 32px 0; margin-top: 32px; }
footer a { color: #D7E8F6; }
footer .wrap { display: grid; gap: 12px; }
footer .linkler { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 640px) {
  .hero { padding: 40px 0 48px; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero .logo { width: 112px; height: 112px; border-radius: 24px; order: -1; }
}