/* Düzen: dar metin sütunu + geniş görsel bantlar; her proje bir "dosya" gibi ölçüleriyle açılır */
:root {
  --zemin: #F3EDE3;
  --kart: #E9E1D3;
  --murekkep: #2E2924;
  --soluk: #6F665B;
  --zeytin: #4E5A3A;
  --kiremit: #A9533B;
  --cizgi: rgba(46, 41, 36, .16);
  --display: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --govde: "Jost", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --zemin: #1E1C18; --kart: #2A2722; --murekkep: #EDE6DA; --soluk: #A99F91;
    --zeytin: #A8B48A; --kiremit: #D88A6E; --cizgi: rgba(237, 230, 218, .16); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --zemin: #1E1C18; --kart: #2A2722; --murekkep: #EDE6DA; --soluk: #A99F91;
  --zeytin: #A8B48A; --kiremit: #D88A6E; --cizgi: rgba(237, 230, 218, .16); color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--zemin); color: var(--murekkep);
  font-family: var(--govde); font-size: 17px; line-height: 1.65;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.kap { max-width: 1120px; margin: 0 auto; }
a { color: inherit; }
img { max-width: 100%; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; text-wrap: balance; margin: 0; }

/* Üst bar */
header { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-block: 28px; border-bottom: 1px solid var(--cizgi); flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.kemer {
  width: 46px; height: 46px; border: 1.2px solid var(--zeytin); border-radius: 23px 23px 0 0;
  display: grid; place-items: center; font-family: var(--display); font-style: italic; font-size: 24px; color: var(--zeytin); padding-top: 4px;
}
.logo span { font-family: var(--display); font-size: 22px; line-height: 1.05; color: var(--zeytin); }
nav { display: flex; gap: 24px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--soluk); padding-block: 4px; border-bottom: 1px solid transparent; }
nav a:hover, nav a:focus-visible { color: var(--murekkep); }
nav a[aria-current="page"] { color: var(--murekkep); border-bottom-color: var(--kiremit); }

/* Sayfa girişi */
.giris { padding-block: 72px 56px; display: grid; gap: 20px; max-width: 760px; }
.giris h1 { font-size: clamp(40px, 6.4vw, 76px); line-height: 1.02; }
.giris h1 em { color: var(--zeytin); }
.giris p { margin: 0; color: var(--soluk); max-width: 56ch; }

.etiket { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--kiremit); font-weight: 500; }
.bolum-bas { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; padding-bottom: 20px; border-bottom: 1px solid var(--cizgi); margin-bottom: 28px; }
.bolum-bas h2 { font-size: clamp(30px, 4vw, 42px); }
.ok { font-size: 14px; color: var(--soluk); text-decoration: none; }
.ok:hover, .ok:focus-visible { color: var(--zeytin); }

/* Ana sayfa proje kartları */
.kartlar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 24px; }
.kart { display: grid; gap: 12px; text-decoration: none; }
.kart .resim { aspect-ratio: 4 / 3; background: var(--kart); border-radius: 4px; overflow: hidden; }
.kart .resim img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
a.kart:hover .resim img { transform: scale(1.02); }
a.kart:hover h3 { color: var(--zeytin); }
.kart .ust { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--soluk); font-variant-numeric: tabular-nums; }
.kart h3 { font-size: 28px; line-height: 1.15; }
.kart.bos .resim { display: grid; place-items: center; border: 1px dashed var(--cizgi); background: transparent; }
.kart.bos .resim span { font-family: var(--display); font-style: italic; font-size: 22px; color: var(--soluk); }
.kart.bos h3 { color: var(--soluk); font-style: italic; }

.ozet { margin-top: 96px; padding-block: 56px; border-top: 1px solid var(--cizgi); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 40px; }
.ozet h2 { font-size: 40px; }
.ozet p { margin: 0 0 14px; max-width: 58ch; }

/* Proje sayfası */
.proje { padding-block: 64px 24px; display: grid; gap: 28px; }
.proje-bas { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 40px; align-items: end; }
.proje-bas h1 { font-size: clamp(36px, 5vw, 58px); line-height: 1.04; }
.kunye { display: grid; grid-template-columns: auto 1fr; gap: 6px 20px; margin: 0; font-size: 15px; }
.kunye dt { color: var(--soluk); }
.kunye dd { margin: 0; font-variant-numeric: tabular-nums; }

figure { margin: 0; }
.gorsel { display: block; width: 100%; border: 0; padding: 0; background: var(--kart); cursor: zoom-in; border-radius: 4px; overflow: hidden; }
.gorsel img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.gorsel:hover img { transform: scale(1.02); }
.gorsel:focus-visible, .kart:focus-visible { outline: 2px solid var(--zeytin); outline-offset: 3px; }
figcaption { font-size: 13px; color: var(--soluk); padding-top: 8px; }
.kapak .gorsel { aspect-ratio: 2 / 1; }
.ikili { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.ikili .gorsel { aspect-ratio: 4 / 3; }
.plan .gorsel { aspect-ratio: 2200 / 1063; background: #fff; }
.plan .gorsel img { object-fit: contain; }

.kararlar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; padding-block: 24px 8px; }
.kararlar h2 { font-size: 30px; margin-bottom: 12px; }
.kararlar p { margin: 0 0 12px; max-width: 58ch; }
.malzeme { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.malzeme li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; align-items: start; font-size: 15px; }
.malzeme i { width: 22px; height: 22px; border-radius: 50%; margin-top: 2px; border: 1px solid var(--cizgi); }
.malzeme b { font-weight: 500; }

.sonraki { margin-top: 64px; padding-block: 28px; border-top: 1px solid var(--cizgi); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.sonraki a { font-family: var(--display); font-size: 24px; text-decoration: none; }
.sonraki a:hover { color: var(--zeytin); }

/* Süreç sayfası */
.adimlar { list-style: none; margin: 0; padding: 0; display: grid; gap: 64px; counter-reset: adim; }
.adim { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.adim:nth-child(even) figure { order: 2; }
.adim .gorsel { aspect-ratio: 2 / 1; background: #fff; }
.adim .gorsel img { object-fit: contain; }
.adim h3 { font-size: 30px; margin: 8px 0 12px; }
.adim p { margin: 0 0 10px; max-width: 48ch; }
.adim .no { font-family: var(--display); font-size: 20px; color: var(--soluk); font-variant-numeric: tabular-nums; }

/* Süreç sonu: adımları odanın son haline bağlar */
.sonuc { margin-top: 112px; padding-top: 56px; border-top: 1px solid var(--cizgi); display: grid; gap: 40px; }
.sonuc .no { font-family: var(--display); font-size: 20px; color: var(--kiremit); font-variant-numeric: tabular-nums; }
.sonuc-bas { display: grid; gap: 14px; max-width: 760px; }
.sonuc-bas h2 { font-size: clamp(34px, 4.6vw, 54px); line-height: 1.05; }
.sonuc-bas p { margin: 0; color: var(--soluk); max-width: 56ch; }
.eslesme { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--cizgi); }
.eslesme li { display: grid; grid-template-columns: 48px minmax(0, 1fr) minmax(0, 1.3fr); gap: 20px; padding-block: 16px; border-bottom: 1px solid var(--cizgi); align-items: baseline; }
.eslesme .no { color: var(--soluk); }
.eslesme .once { color: var(--soluk); font-size: 15px; }
.eslesme .sonra::before { content: "→ "; color: var(--kiremit); }
.bolgeler { display: grid; gap: 56px; }
.bolge { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.bolge:nth-child(even) figure { order: 2; }
.bolge .gorsel { aspect-ratio: 3 / 2; }
.bolge h3 { font-size: 30px; margin: 4px 0 12px; }
.bolge ul { margin: 0; padding-left: 18px; display: grid; gap: 8px; font-size: 16px; }
.bolge li::marker { color: var(--kiremit); }
.sonuc-son { margin: 0; }

.kutuphane { margin-top: 112px; }
.dokular { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 28px 20px; }
.doku { display: grid; gap: 10px; align-content: start; }
.doku .ornek { aspect-ratio: 1; border-radius: 4px; border: 1px solid var(--cizgi); background-color: var(--kart); background-repeat: repeat; background-size: 64px; }
.doku b { font-weight: 500; font-size: 15px; display: block; }
.doku span { font-size: 14px; color: var(--soluk); line-height: 1.5; }

/* İletişim */
.iletisim { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 56px; padding-bottom: 56px; }
.iletisim aside { display: grid; gap: 18px; align-content: start; font-size: 15px; }
.iletisim aside p { margin: 0; color: var(--soluk); }
.iletisim aside b { color: var(--murekkep); font-weight: 500; }
form { display: grid; gap: 20px; }
.alan { display: grid; gap: 6px; }
.alan label { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--soluk); }
.alan input, .alan select, .alan textarea {
  font: inherit; color: var(--murekkep); background: transparent;
  border: 0; border-bottom: 1px solid var(--cizgi); border-radius: 0; padding: 8px 0; width: 100%;
}
.alan textarea { min-height: 140px; resize: vertical; border: 1px solid var(--cizgi); border-radius: 4px; padding: 10px 12px; }
.alan select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--soluk) 50%), linear-gradient(135deg, var(--soluk) 50%, transparent 50%); background-position: calc(100% - 12px) 55%, calc(100% - 7px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.alan select option { background: var(--zemin); color: var(--murekkep); }
.alan input:focus, .alan select:focus, .alan textarea:focus { outline: none; border-color: var(--zeytin); }
.gizli { position: absolute; left: -9999px; }
.dugme { justify-self: start; font: inherit; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; background: var(--zeytin); color: var(--zemin); border: 0; border-radius: 999px; padding: 12px 28px; cursor: pointer; text-decoration: none; display: inline-block; }
.dugme:hover, .dugme:focus-visible { background: var(--murekkep); }

footer { margin-top: 64px; padding-block: 28px 40px; border-top: 1px solid var(--cizgi); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 14px; color: var(--soluk); }
footer a { color: var(--murekkep); text-decoration: none; }
footer a:hover { color: var(--zeytin); }

/* Görsel büyütme perdesi */
.perde { position: fixed; inset: 0; background: rgba(20, 18, 15, .92); display: grid; place-items: center; z-index: 20;
  padding: max(24px, env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) max(24px, env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px)); cursor: zoom-out; }
.perde[hidden] { display: none; }
.perde img { max-width: 100%; max-height: 100%; object-fit: contain; }
.perde button { position: absolute; top: calc(16px + env(safe-area-inset-top, 0px)); right: calc(16px + env(safe-area-inset-right, 0px)); background: none; border: 1px solid rgba(255,255,255,.4); color: #fff; border-radius: 999px; padding: 6px 14px; font: inherit; font-size: 14px; cursor: pointer; }

@media (max-width: 760px) {
  .proje-bas, .kararlar, .ozet, .adim, .iletisim { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .adim:nth-child(even) figure, .bolge:nth-child(even) figure { order: 0; }
  .bolge { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .eslesme li { grid-template-columns: 36px minmax(0, 1fr); gap: 4px 12px; }
  .eslesme .sonra { grid-column: 2; }
  .ikili, .kartlar { grid-template-columns: minmax(0, 1fr); }
  .kapak .gorsel { aspect-ratio: 4 / 3; }
  .dokular { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  nav { gap: 16px; }
  .giris { padding-block: 48px 40px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .gorsel img, .kart .resim img { transition: none; }
}