:root {
  --bg: #faf7f2;
  --kart: #ffffff;
  --yazi: #2b2622;
  --yazi-soluk: #7a7068;
  --cizgi: #e7e0d6;
  --vurgu: #8a5a3c;
  --vurgu-koyu: #6e452d;
  --wa: #1f9d55;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1917;
    --kart: #26221f;
    --yazi: #f2ece4;
    --yazi-soluk: #a39a90;
    --cizgi: #3a3430;
    --vurgu: #d49a72;
    --vurgu-koyu: #e8b48f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--yazi);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}
.ust {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border-bottom: 1px solid var(--cizgi);
  position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.logo { font-weight: 700; font-size: 1.2rem; color: var(--yazi); text-decoration: none; letter-spacing: .02em; }
.wa-ust { background: var(--wa); color: #fff; text-decoration: none; padding: 8px 14px; border-radius: 999px; font-size: .9rem; font-weight: 600; }
main { max-width: 960px; margin: 0 auto; padding: 20px 16px 40px; }
h1 { font-size: 1.6rem; margin: 0 0 6px; }
.alt-baslik { color: var(--yazi-soluk); margin: 0 0 20px; }
.yol { font-size: .9rem; margin-bottom: 14px; color: var(--yazi-soluk); }
.yol a { color: var(--vurgu); text-decoration: none; }
.izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.kart {
  display: block; background: var(--kart); border: 1px solid var(--cizgi);
  border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit;
  transition: transform .15s, box-shadow .15s;
}
.kart:hover, .kart:focus-visible { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.1); outline: none; }
.kart .gorsel { aspect-ratio: 4 / 3; background-size: cover; background-position: center; }
.kart .govde { padding: 12px 14px 14px; }
.kart h3 { margin: 0 0 4px; font-size: 1.05rem; }
.kart p { margin: 0; color: var(--yazi-soluk); font-size: .9rem; }
.fiyat-etiket { display: inline-block; margin-top: 8px; font-weight: 700; color: var(--vurgu); font-size: .95rem; }

.detay { display: grid; gap: 20px; }
@media (min-width: 760px) { .detay { grid-template-columns: 1fr 1fr; align-items: start; } }
.detay .buyuk { aspect-ratio: 4 / 3; border-radius: var(--radius); border: 1px solid var(--cizgi); background-size: cover; background-position: center; }
.hesap { background: var(--kart); border: 1px solid var(--cizgi); border-radius: var(--radius); padding: 16px; }
.hesap h2 { margin: 0 0 12px; font-size: 1.1rem; }
.alanlar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label { display: block; font-size: .85rem; color: var(--yazi-soluk); margin-bottom: 4px; }
input[type=number] {
  width: 100%; padding: 12px; font-size: 1rem; border-radius: 10px;
  border: 1px solid var(--cizgi); background: var(--bg); color: var(--yazi);
}
input[type=number]:focus-visible { outline: 2px solid var(--vurgu); outline-offset: 1px; }
.sonuc { margin-top: 14px; padding: 14px; border-radius: 10px; background: var(--bg); border: 1px dashed var(--cizgi); }
.sonuc .toplam { font-size: 1.7rem; font-weight: 800; color: var(--vurgu); }
.sonuc .detay-satir { color: var(--yazi-soluk); font-size: .88rem; margin-top: 2px; }
.uyari { font-size: .8rem; color: var(--yazi-soluk); margin-top: 10px; }
.btn {
  display: block; text-align: center; margin-top: 14px; padding: 14px;
  background: var(--wa); color: #fff; text-decoration: none; border-radius: 12px; font-weight: 700;
}
.btn.pasif { background: var(--cizgi); color: var(--yazi-soluk); pointer-events: none; }
.bolum { margin: 32px 0 4px; font-size: 1.3rem; }
.izgara.kucuk { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.pencere-ikon { color: var(--vurgu); background: var(--bg); display: flex; justify-content: center; padding: 14px 0 0; }
.pencere-ikon svg { width: 72px; height: 72px; }
.pencere-kart { text-align: center; }
.pencere-baslik { display: flex; gap: 16px; align-items: center; margin-bottom: 8px; }
.pencere-baslik .pencere-ikon { padding: 0; background: none; flex: none; }
.oneri { margin-top: 26px; }
.oneri h2 { margin: 0 0 2px; font-size: 1.2rem; }
.fiyat-etiket small { font-weight: 400; color: var(--yazi-soluk); }
.alt { text-align: center; padding: 24px 16px; color: var(--yazi-soluk); font-size: .85rem; border-top: 1px solid var(--cizgi); }