/* Stüdyo: kırık beyaz zemin, ortada cam bir heykel, arkasında dev bir "kaptan".
   İki renk var: Kâğıt (varsayılan) ve Gece. Değerler sahne.js tarafından da okunur. */
:root {
  --zemin: #f1efe9;
  --yazi: #16161a;
  --soluk: #8a867d;
  --cizgi: rgba(22, 22, 26, 0.13);
  --display: "Unbounded", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --kenar: clamp(18px, 3vw, 40px);
  color-scheme: light;
}
:root[data-tema="gece"] {
  --zemin: #0e0f13;
  --yazi: #ecebe6;
  --soluk: #7f7d79;
  --cizgi: rgba(236, 235, 230, 0.15);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { background: var(--zemin); color: var(--yazi); scroll-behavior: smooth; transition: background-color 0.6s ease, color 0.6s ease; }
body { margin: 0; font: 400 15px/1.55 var(--mono); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--yazi); outline-offset: 4px; }

.sahne { position: fixed; inset: 0; z-index: 0; display: block; width: 100%; height: 100%; }

/* ───────── yükleme ───────── */
.yukleme { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: var(--zemin); transition: opacity 0.9s ease, visibility 0.9s; }
.yukleme.bitti { opacity: 0; visibility: hidden; }
.y-marka { position: absolute; top: calc(22px + env(safe-area-inset-top, 0px)); left: var(--kenar); font: 600 17px/1 var(--display); letter-spacing: -0.01em; }
.y-marka span, .marka span { color: var(--soluk); }
#yCizgi { width: min(54vw, 54vh); height: min(54vw, 54vh); }
.y-sayac { position: absolute; right: var(--kenar); bottom: calc(18px + env(safe-area-inset-bottom, 0px)); font: 300 clamp(56px, 10vw, 136px)/1 var(--display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }

/* ───────── üst çubuk ───────── */
.ust { position: fixed; top: 0; left: 0; right: 0; z-index: 10; display: flex; align-items: center; gap: 28px; padding: calc(20px + env(safe-area-inset-top, 0px)) var(--kenar) 0; pointer-events: none; }
.ust > * { pointer-events: auto; }
.marka { font: 600 17px/1 var(--display); letter-spacing: -0.01em; text-decoration: none; }
.ust nav { display: flex; gap: 24px; margin-left: auto; }
.ust nav a { position: relative; padding: 4px 0; font: 500 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; }
.ust nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform 0.4s cubic-bezier(0.6, 0, 0.2, 1); }
.ust nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.tema { display: inline-flex; align-items: center; gap: 9px; padding: 7px 13px 7px 8px; border: 1px solid var(--cizgi); border-radius: 999px; background: transparent; color: inherit; font: 500 11px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; transition: border-color 0.3s; }
.tema:hover { border-color: var(--yazi); }
.tema i { position: relative; width: 26px; height: 14px; border-radius: 7px; background: var(--cizgi); }
.tema i::after { content: ""; position: absolute; top: 2px; left: 2px; width: 10px; height: 10px; border-radius: 50%; background: var(--yazi); transition: transform 0.45s cubic-bezier(0.6, 0, 0.2, 1); }
:root[data-tema="gece"] .tema i::after { transform: translateX(12px); }

/* ───────── açılış ───────── */
main { position: relative; z-index: 2; }
.acilis { position: relative; height: 100vh; height: 100svh; }
/* başlık 3D sahnede çiziliyor; buradaki ekran okuyucular ve 3D'siz cihazlar için */
.baslik { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.acilis-alt { position: absolute; left: var(--kenar); right: var(--kenar); bottom: calc(24px + env(safe-area-inset-bottom, 0px)); display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.acilis-alt p { max-width: 34ch; margin: 0; font-size: 13px; line-height: 1.6; }
.acilis-alt strong { font-weight: 500; }
.kaydir { display: inline-flex; align-items: center; gap: 12px; font: 500 11px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--soluk); }
.kaydir i { position: relative; width: 1px; height: 38px; overflow: hidden; background: var(--cizgi); }
.kaydir i::after { content: ""; position: absolute; left: 0; top: -40%; width: 100%; height: 40%; background: var(--yazi); animation: akis 1.9s cubic-bezier(0.6, 0, 0.2, 1) infinite; }
@keyframes akis { to { top: 100%; } }

/* ───────── tanıtım: kelimeler kaydırdıkça yanar ───────── */
.tanitim { min-height: 150vh; padding: 0 var(--kenar); }
.kelimeler { position: sticky; top: 28vh; max-width: 19ch; margin: 0 auto; font: 400 clamp(30px, 5.6vw, 82px)/1.08 var(--display); letter-spacing: -0.03em; }
.kelimeler span { opacity: 0.13; transition: opacity 0.4s ease; }
.kelimeler span.acik { opacity: 1; }

.etiket { margin: 0 0 12px; font: 500 11px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--soluk); }

/* Kara Delik'te sahne kararır: yazılar da açık renge geçer */
:root.karanlik { --zemin: #060608; --yazi: #ecebe6; --soluk: #85837f; --cizgi: rgba(236, 235, 230, 0.15); }

/* görününce aşağıdan süzülerek beliren yazılar */
.gorun { opacity: 0; transform: translateY(28px); transition: opacity 1s ease, transform 1.1s cubic-bezier(0.2, 0.7, 0.2, 1); }
.gorun.gorundu { opacity: 1; transform: none; }

/* ───────── yolculuk ───────── */
.yolculuk { position: relative; height: calc((var(--adet, 5) + 0.6) * 100vh); }
/* --ekran'ı sayfa.js gerçek görünen yükseklikle doldurur: telefonda adres çubuğu gizlenince
   bazı tarayıcılar (iOS Chrome) dvh'yi büyütmüyor, sahnenin altında boşluk kalıyordu. */
.y-sabit { position: sticky; top: 0; height: 100vh; height: 100dvh; height: var(--ekran, 100dvh); overflow: hidden; }
.y-bilgi {
  position: absolute; left: var(--kenar); bottom: calc(9vh + env(safe-area-inset-bottom, 0px)); width: min(500px, calc(100% - 2 * var(--kenar)));
  opacity: 0; transform: translateY(26px); pointer-events: none;
  transition: opacity 0.55s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.y-bilgi.aktif { opacity: 1; transform: none; pointer-events: auto; transition-delay: 0.12s; }
.y-ust { margin: 0 0 18px; font: 500 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--soluk); }
.y-ust b { color: var(--yazi); font-weight: 500; }
.y-bilgi h2 { margin: 0 0 18px -0.05em; font: 600 clamp(48px, 7.4vw, 112px)/0.9 var(--display); letter-spacing: -0.055em; }
.y-aciklama { max-width: 42ch; margin: 0 0 16px; font-size: 13px; line-height: 1.65; }
.y-etiketler { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 24px; }
.y-etiketler span { padding: 5px 10px; border: 1px solid var(--cizgi); border-radius: 999px; font: 500 10px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--soluk); }
.y-ac, .selam span, .baglar a, .i-filtre button, .menu-ac {
  transition: background-color 0.3s, color 0.3s, border-color 0.3s, transform 0.4s cubic-bezier(0.6, 0, 0.2, 1);
}
.y-ac { display: inline-flex; align-items: center; gap: 14px; padding: 14px 20px 14px 22px; border-radius: 999px; background: var(--yazi); color: var(--zemin); font: 500 12px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; }
.y-ac span { transition: transform 0.4s cubic-bezier(0.6, 0, 0.2, 1); }
.y-ac:hover span { transform: translateX(5px); }
.y-liste { position: absolute; right: var(--kenar); top: 50%; transform: translateY(-50%); display: grid; gap: 4px; margin: 0; padding: 0; list-style: none; text-align: right; }
.y-liste button { display: inline-flex; align-items: baseline; gap: 10px; padding: 5px 0; border: 0; background: none; color: var(--soluk); font: 500 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer; transition: color 0.3s; }
.y-liste button i { font-style: normal; opacity: 0.6; }
.y-liste button:hover, .y-liste button.aktif { color: var(--yazi); }
.y-liste button.aktif::after { content: ""; width: 18px; height: 1px; background: currentColor; align-self: center; }
.y-ilerleme { position: absolute; left: var(--kenar); right: var(--kenar); bottom: calc(4vh + env(safe-area-inset-bottom, 0px)); height: 1px; background: var(--cizgi); }
.y-ilerleme i { position: absolute; inset: 0; background: var(--yazi); transform: scaleX(0); transform-origin: left; }

/* ───────── tüm işler ───────── */
.isler { position: relative; padding: 22vh var(--kenar) 10vh; }
.i-bas { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.bolum-baslik { margin: 0; font: 600 clamp(44px, 7vw, 104px)/0.9 var(--display); letter-spacing: -0.055em; }
.bolum-baslik sup { margin-left: 8px; font: 500 12px/1 var(--mono); letter-spacing: 0.1em; vertical-align: top; color: var(--soluk); }
.i-filtre { display: flex; flex-wrap: wrap; gap: 6px; }
.i-filtre button { padding: 8px 13px; border: 1px solid var(--cizgi); border-radius: 999px; background: transparent; color: var(--yazi); font: 500 10px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer; }
.i-filtre button:hover { border-color: var(--yazi); }
.i-filtre button[aria-pressed="true"] { background: var(--yazi); border-color: var(--yazi); color: var(--zemin); }
.i-liste { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--cizgi); }
.i-liste li[hidden] { display: none; }
.i-liste a {
  position: relative; display: grid; grid-template-columns: 60px minmax(0, 1fr) minmax(0, 0.8fr) 110px 40px; align-items: center; gap: 20px;
  padding: 26px 0; border-bottom: 1px solid var(--cizgi); text-decoration: none; overflow: hidden; isolation: isolate;
}
.i-liste a::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--renk); opacity: 0; transform: scaleY(0); transform-origin: bottom; transition: transform 0.5s cubic-bezier(0.6, 0, 0.2, 1), opacity 0.5s; }
.i-liste a:hover::before { opacity: 0.08; transform: none; }
.i-no, .i-tarih { font: 500 11px/1 var(--mono); letter-spacing: 0.1em; color: var(--soluk); }
.i-ad { font: 600 clamp(26px, 3.6vw, 52px)/1 var(--display); letter-spacing: -0.045em; transition: transform 0.5s cubic-bezier(0.6, 0, 0.2, 1); }
.i-liste a:hover .i-ad { transform: translateX(14px); }
.i-etiket { font: 500 11px/1.5 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--soluk); }
.i-ok { justify-self: end; font: 400 20px/1 var(--mono); transition: transform 0.4s cubic-bezier(0.6, 0, 0.2, 1); }
.i-liste a:hover .i-ok { transform: translateX(6px) rotate(-45deg); }
.i-kucuk { display: none; }
.i-onizleme {
  position: fixed; left: 0; top: 0; z-index: 8; width: 300px; aspect-ratio: 8 / 5; margin: -94px 0 0 24px; overflow: hidden;
  border-radius: 14px; background: var(--renk, var(--cizgi)); pointer-events: none;
  opacity: 0; scale: 0.85; transition: opacity 0.35s ease, scale 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.45);
}
.i-onizleme.acik { opacity: 1; scale: 1; }
.i-onizleme img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ───────── hakkında ───────── */
.hakkinda { padding: 18vh var(--kenar) 16vh; }
.h-buyuk { max-width: 22ch; margin: 18px 0 64px; font: 300 clamp(30px, 4.6vw, 68px)/1.1 var(--display); letter-spacing: -0.035em; }
.h-alt { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 8vw, 140px); align-items: start; }
.h-alt p { max-width: 44ch; margin: 0; font-size: 14px; line-height: 1.7; }
.h-kit { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--cizgi); font-size: 13px; }
.h-kit li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--cizgi); }
.h-kit li span:last-child { color: var(--soluk); }

/* ───────── iletişim ───────── */
.iletisim { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: 100vh; min-height: 100svh; padding: 18vh var(--kenar) 0; }
.selam { display: inline-block; align-self: flex-start; margin: 18px 0 40px -0.05em; font: 600 clamp(54px, 10vw, 168px)/0.88 var(--display); letter-spacing: -0.06em; text-decoration: none; }
.selam span { display: inline-block; font-weight: 300; }
.selam:hover span { transform: translateX(16px); }
.baglar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12vh; }
.baglar a { display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; border: 1px solid var(--cizgi); border-radius: 999px; font: 500 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; }
.baglar a:hover { background: var(--yazi); border-color: var(--yazi); color: var(--zemin); }
.baglar i { font-style: normal; }
.alt { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding: 22px 0 calc(24px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--cizgi); font: 400 11px/1 var(--mono); letter-spacing: 0.08em; color: var(--soluk); }
.alt b { color: var(--yazi); font-weight: 500; }
.alt a { margin: -14px 0; padding: 14px 0; text-decoration: none; transition: color 0.3s; }   /* parmakla kolay dokunulsun: görünüş aynı, alan geniş */
.alt a:hover { color: var(--yazi); }

/* ───────── telefon menüsü ───────── */
.menu-ac { display: none; height: 31px; padding: 0 14px; border: 1px solid var(--cizgi); border-radius: 999px; background: transparent; color: inherit; font: 500 11px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; }
.menu { position: fixed; inset: 0; z-index: 9; display: flex; align-items: flex-end; padding: 0 var(--kenar) calc(10vh + env(safe-area-inset-bottom, 0px)); background: var(--zemin); clip-path: inset(0 0 100% 0); transition: clip-path 0.6s cubic-bezier(0.7, 0, 0.2, 1); }
.menu.acik { clip-path: inset(0); }
.menu nav { display: grid; gap: 6px; }
.menu a { display: flex; align-items: baseline; gap: 14px; font: 600 clamp(40px, 12vw, 64px)/1.05 var(--display); letter-spacing: -0.05em; text-decoration: none; }
.menu a i { font: 500 11px/1 var(--mono); letter-spacing: 0.1em; font-style: normal; color: var(--soluk); }

/* ───────── sayfa geçiş perdesi ───────── */
.perde { position: fixed; inset: 0; z-index: 50; background: var(--zemin); transform: translateY(100%); pointer-events: none; }
.perde::after { content: ""; position: absolute; inset: 0; background: var(--renk, transparent); opacity: 0.1; }
.perde.iniyor { transform: none; transition: transform 0.65s cubic-bezier(0.7, 0, 0.2, 1); }

/* imleci izleyen halka (yalnızca fareyle) */
.imlec { position: fixed; left: 0; top: 0; z-index: 30; width: 38px; height: 38px; margin: -19px 0 0 -19px; border: 1px solid var(--yazi); border-radius: 50%; opacity: 0; pointer-events: none; transition: width 0.35s, height 0.35s, margin 0.35s, opacity 0.35s; }
.imlec.gorunur { opacity: 0.45; }
.imlec.uzerinde { width: 70px; height: 70px; margin: -35px 0 0 -35px; opacity: 0.25; }
@media (pointer: coarse) { .imlec { display: none; } }

/* 3D çalışmazsa: düz, büyük başlık */
.webgl-yok .sahne { display: none; }
.webgl-yok .baslik { position: absolute; inset: 0; display: grid; place-items: center; width: auto; height: auto; clip-path: none; margin: 0; font: 700 clamp(72px, 21vw, 340px)/0.9 var(--display); letter-spacing: -0.04em; }

@media (max-width: 900px) {
  .ust nav { gap: 16px; }
  .y-liste { display: none; }
  .h-alt { grid-template-columns: 1fr; }
  .i-liste a { grid-template-columns: 44px minmax(0, 1fr) 90px 30px; }
  .i-etiket { display: none; }
}
@media (max-width: 640px) {
  .ust { gap: 10px; }
  .ust nav { display: none; }
  .tema { margin-left: auto; }
  .menu-ac { display: inline-flex; align-items: center; }
  .acilis-alt { flex-direction: column; align-items: flex-start; gap: 18px; }
  .y-bilgi { bottom: calc(6vh + env(safe-area-inset-bottom, 0px)); }
  .y-ilerleme { bottom: calc(2vh + env(safe-area-inset-bottom, 0px)); }
  .y-aciklama { font-size: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
  .y-etiketler { margin-bottom: 18px; }
  .i-liste a { grid-template-columns: 30px minmax(0, 1fr) 72px; gap: 14px; padding: 18px 0; }
  .i-tarih, .i-ok { display: none; }
  .i-kucuk { display: block; width: 72px; aspect-ratio: 8 / 5; border-radius: 8px; object-fit: cover; }
  .i-ad { font-size: 26px; }
  .isler { padding-top: 16vh; }
}
@media (prefers-reduced-motion: reduce) {
  html { transition: none; scroll-behavior: auto; }
  .kaydir i::after { animation: none; }
  .gorun { opacity: 1; transform: none; transition: none; }
  .y-bilgi, .menu, .perde.iniyor { transition: none; }
}