:root {
  --murekkep: #111418;
  --metin: #2b313a;
  --soluk: #66707c;
  --cizgi: #e4e7eb;
  --zemin: #ffffff;
  --yumusak: #f4f5f7;
  --lacivert: #12315a;
  --kirmizi: #b42318;
  --kirmizi-zemin: #fdecea;
  --yaricap: 14px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--zemin);
  color: var(--metin);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

img { max-width: 100%; height: auto; display: block; }

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

h1, h2, h3 { color: var(--murekkep); line-height: 1.2; }

.kap { width: min(1120px, 100% - 32px); margin-inline: auto; }

.soluk { color: var(--soluk); }

mark.eksik {
  background: #fff3bf;
  color: #7a5a00;
  padding: 0 4px;
  border-radius: 4px;
  font-size: .9em;
}

/* Üst menü */
.ust { border-bottom: 1px solid var(--cizgi); background: var(--zemin); position: sticky; top: 0; z-index: 10; }
.ust-ic { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo img { width: 190px; }
.menu { display: flex; gap: 22px; }
.menu a { color: var(--murekkep); text-decoration: none; font-weight: 500; font-size: 15px; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--lacivert); text-decoration: underline; text-underline-offset: 6px; }

/* Vitrin / ürün */
.vitrin { padding: 48px 0 56px; }
.urun-izgara { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: start; }
.urun-gorsel { border-radius: var(--yaricap); overflow: hidden; background: #fff; border: 1px solid var(--cizgi); }
.urun-gorsel img { width: 100%; }
.ust-etiket { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; font-weight: 600; color: var(--soluk); margin: 0 0 10px; }
.urun-bilgi h1 { font-size: clamp(26px, 3.2vw, 36px); margin: 0 0 14px; }
.stok-yok {
  display: inline-block;
  background: var(--kirmizi-zemin);
  color: var(--kirmizi);
  font-weight: 600;
  font-size: 14px;
  padding: 4px 12px;
  border-radius: 999px;
}
.fiyat { font-size: 30px; font-weight: 700; color: var(--murekkep); margin: 18px 0 2px; }
.kdv { font-size: 14px; color: var(--soluk); margin: 0 0 20px; }
.butonlar { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0; }
.buton {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px; border-radius: 10px;
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  border: 1px solid var(--murekkep); background: var(--murekkep); color: #fff;
}
.buton.ikincil { background: transparent; color: var(--murekkep); }
.buton:disabled { background: #c9ced5; border-color: #c9ced5; color: #fff; cursor: not-allowed; }
.guvence { list-style: none; padding: 18px 0 0; margin: 0; border-top: 1px solid var(--cizgi); display: grid; gap: 8px; font-size: 15px; }
.guvence li::before { content: "✓"; color: var(--lacivert); font-weight: 700; margin-right: 8px; }

.ozellikler { width: 100%; border-collapse: collapse; font-size: 15px; }
.ozellikler th, .ozellikler td { text-align: left; padding: 10px 0; border-bottom: 1px solid var(--cizgi); vertical-align: top; }
.ozellikler th { color: var(--soluk); font-weight: 500; width: 46%; padding-right: 16px; }

.bolum { padding: 48px 0; border-top: 1px solid var(--cizgi); }
.bolum h2 { font-size: 24px; margin: 0 0 18px; }
.iki-sutun { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }

.kartlar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kart { background: var(--yumusak); border-radius: var(--yaricap); padding: 20px; }
.kart h3 { font-size: 16px; margin: 0 0 6px; }
.kart p { margin: 0; font-size: 14px; color: var(--soluk); }

/* Metin sayfaları */
.metin { padding: 40px 0 64px; max-width: 820px; }
.metin h1 { font-size: clamp(26px, 3vw, 34px); margin: 0 0 8px; }
.metin h2 { font-size: 19px; margin: 32px 0 8px; }
.metin p, .metin li { font-size: 15.5px; }
.metin .guncelleme { color: var(--soluk); font-size: 14px; margin: 0 0 24px; }
.bilgi-tablo { width: 100%; border-collapse: collapse; margin: 8px 0 16px; font-size: 15px; }
.bilgi-tablo th, .bilgi-tablo td { text-align: left; padding: 9px 0; border-bottom: 1px solid var(--cizgi); vertical-align: top; }
.bilgi-tablo th { width: 34%; color: var(--soluk); font-weight: 500; padding-right: 16px; }

/* Alt bilgi */
.alt { background: var(--yumusak); border-top: 1px solid var(--cizgi); margin-top: 24px; font-size: 14.5px; }
.alt-izgara { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr; gap: 32px; padding: 40px 0 28px; }
.alt h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .06em; margin: 4px 0 12px; }
.alt ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.alt a { color: var(--metin); text-decoration: none; }
.alt a:hover { color: var(--lacivert); text-decoration: underline; }
.alt-logo { width: 160px; margin-bottom: 10px; }
.alt-iletisim { line-height: 1.7; }
.odeme-bandi { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding: 18px 0; border-top: 1px solid var(--cizgi); }
.logo-bandi { width: 429px; max-width: 100%; height: auto; }
.telif { padding: 0 0 24px; font-size: 13.5px; }

@media (max-width: 860px) {
  .urun-izgara, .iki-sutun { grid-template-columns: 1fr; gap: 28px; }
  .kartlar { grid-template-columns: 1fr 1fr; }
  .alt-izgara { grid-template-columns: 1fr; gap: 24px; }
  .vitrin { padding-top: 28px; }
}

@media (max-width: 520px) {
  .logo img { width: 140px; }
  .menu { gap: 14px; }
  .menu a { font-size: 14px; }
  .kartlar { grid-template-columns: 1fr; }
  .butonlar .buton { width: 100%; }
}