/* Tessera — deneyim odaklı açılış sayfası.

   Sayfanın tek bir fikri var: bir resme doğru yürümek. Krem duvarda küçük bir
   fotoğraf, ışıklar kısılır, fotoğraf kırk parçaya ayrılır, dolar, sonra
   içine girilir. Bu yüzden iki zemin var (krem duvar, koyu salon) ve tek
   aksan (gül). Gradient yok; derinlik gölgeden ve bulanıklıktan geliyor. */

:root {
  --krem:       #fbf6ee;
  --krem-2:     #f4ecdf;
  --cizgi:      #e7dccd;
  --murekkep:   #1e1917;
  --murekkep-2: #5a524f;
  --murekkep-3: #9a918d;
  --gul:        #c8415f;
  --gul-acik:   #f0a9b8;
  --gece:       #161211;

  --serif: "Instrument Serif", "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --kenar: clamp(20px, 5vw, 56px);
  --yay:   cubic-bezier(.2, .8, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--krem);
  color: var(--murekkep);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
em { font-style: italic; }

:focus-visible { outline: 2px solid var(--gul); outline-offset: 3px; border-radius: 6px; }

.kap { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: var(--kenar); }

.kucuk {
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--murekkep-3);
}

/* ─────────── Üst şerit ─────────── */

.ust {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px var(--kenar);
  color: var(--murekkep);
  transition: color .4s;
  pointer-events: none;
}
.ust > * { pointer-events: auto; }
.ust.koyu { color: var(--krem); }

.marka {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--serif); font-size: 25px; line-height: 1;
  color: inherit; text-decoration: none;
}

/* Resmin içindeyken şerit karoların üstünde kalıyor: yazılar buzlu bir
   plakaya oturur. Dolgu hep var, yalnızca zemin açılıp kapanıyor. */
.ust .marka, .ust .dil {
  padding: 7px 14px 7px 9px; margin: -7px -14px -7px -9px; border-radius: 999px;
  transition: background .4s;
}
.ust .dil { padding: 2px 8px; margin: -2px -8px; }
.ust.cam .marka, .ust.cam .dil {
  background: rgba(251, 246, 238, .78);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
}
.ust.cam.koyu .marka, .ust.cam.koyu .dil { background: rgba(22, 18, 17, .5); }
.marka img { width: 26px; height: 26px; }

.ust__sag { display: flex; align-items: center; gap: 12px; }

.dil { display: flex; }
.dil button {
  background: none; border: 0; padding: 8px 6px; cursor: pointer;
  font: 500 12px/1 var(--mono); letter-spacing: .06em;
  color: inherit; opacity: .42; transition: opacity .2s;
}
.dil button:hover { opacity: .8; }
.dil button[aria-pressed="true"] { opacity: 1; }

.dgm {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 20px; border-radius: 999px; border: 1px solid transparent;
  font: 600 14px/1 var(--sans); text-decoration: none; cursor: pointer;
  background: var(--murekkep); color: var(--krem);
  transition: background .35s, color .35s, border-color .35s, transform .25s var(--yay);
}
.dgm:hover { transform: translateY(-2px); }
.dgm:active { transform: translateY(0) scale(.98); }
.ust.koyu .dgm, .dgm--acik { background: var(--krem); color: var(--murekkep); }
.dgm--cizgi { background: transparent; color: var(--murekkep); border-color: var(--murekkep); }
.dgm--cizgi:hover { background: var(--murekkep); color: var(--krem); }
.dgm--cizgi svg { transition: transform .25s var(--yay); }
.dgm--cizgi:hover svg { transform: translateX(3px); }
.dgm--byk { padding: 18px 30px; font-size: 16px; }

/* ─────────── Sahne ─────────── */
/* JS yokken: sıradan bir bölüm — başlık, mozaik görseli, altı cümle. */

.sahne { background: var(--krem); }
.sahne__ic { padding: 130px var(--kenar) 80px; text-align: center; }
#tuval, .kunye, .ipucu, .sayac, .gezin, .balon, .sahne__ilerleme { display: none; }
.sahne__yedek { width: min(100%, 920px); height: auto; margin: 44px auto; }

.giris h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(50px, 7.5vw, 114px);
  line-height: .96; letter-spacing: -.022em;
  margin-top: 18px;
}
.giris h1 em { color: var(--gul); }

.soz {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
}

/* JS varken: 100 svh'lik yapışkan pencere, uzun bir kaydırma rayı. */

.js .sahne { height: 940vh; }
.js .sahne__ic {
  position: sticky; top: 0;
  height: 100vh; height: 100svh;
  padding: 0; overflow: hidden; text-align: left;
  --soz-alt: clamp(86px, 11.5vh, 112px);
  --sayac-alt: clamp(24px, 4.2vh, 40px);
}
.js #tuval { display: block; position: absolute; inset: 0; width: 100%; height: 100%; }
.js .sahne__yedek { display: none; }

.js .giris {
  position: absolute; inset: 0 0 auto 0; text-align: center;
  padding: clamp(92px, 15.5vh, 150px) var(--kenar) 0;
  pointer-events: none; will-change: opacity, transform;
}

.js .kunye {
  display: flex; flex-direction: column; gap: 3px;
  position: absolute; left: 0; top: 0;
  padding-left: 12px; border-left: 1px solid var(--cizgi);
  font: 400 10.5px/1.45 var(--mono); letter-spacing: .04em;
  color: var(--murekkep-3); white-space: nowrap;
  pointer-events: none; opacity: 0;
}
.kunye b { font-weight: 500; color: var(--murekkep); }

.js .ipucu {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  font: 500 10.5px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase;
  color: var(--murekkep-3); pointer-events: none;
}
.ipucu i { display: block; width: 1px; height: 30px; background: var(--murekkep-3); transform-origin: 50% 0; animation: in 2.2s var(--yay) infinite; }
@keyframes in {
  0%   { transform: scaleY(0); opacity: 1; }
  60%  { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

.js .soz {
  position: absolute; left: 50%; bottom: var(--soz-alt);
  transform: translate(-50%, 0);
  font-size: clamp(34px, 5.2vw, 74px);
  line-height: 1.02; letter-spacing: -.016em;
  color: var(--krem); white-space: nowrap;
  opacity: 0; pointer-events: none; will-change: opacity, transform;
}
.js .soz--plaka {
  padding: .2em .52em .28em; border-radius: .36em;
  background: rgba(22, 18, 17, .56);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  backdrop-filter: blur(20px) saturate(1.2);
}

.js .sayac {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  position: absolute; left: 50%; bottom: var(--sayac-alt); transform: translateX(-50%);
  width: calc(100% - 2 * var(--kenar)); text-align: center;
  opacity: 0; pointer-events: none;
}
.sayac__ust {
  font: 500 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: rgba(251, 246, 238, .5);
}
.sayac__ust b { font-weight: 500; color: var(--krem); }
.sayac__ust i { font-style: normal; color: var(--gul-acik); margin-left: 10px; }
.sayac__ad { font-size: 15px; line-height: 1.3; color: rgba(251, 246, 238, .86); min-height: 1.3em; }

.js .gezin {
  display: block;
  position: absolute; left: 50%; bottom: var(--sayac-alt); transform: translateX(-50%);
  padding: 9px 14px; border-radius: 999px;
  background: rgba(22, 18, 17, .56);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  font: 500 10.5px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase;
  color: rgba(251, 246, 238, .82); white-space: nowrap;
  opacity: 0; pointer-events: none;
}
.gezin__dok { display: none; }
@media (hover: none) {
  .gezin__fare { display: none; }
  .gezin__dok { display: inline; }
}

.js .balon {
  display: flex; flex-direction: column; gap: 3px;
  position: absolute; left: 0; top: 0; z-index: 5;
  max-width: min(300px, calc(100vw - 32px));
  padding: 10px 14px 11px; border-radius: 14px;
  background: var(--krem); color: var(--murekkep);
  box-shadow: 0 10px 34px rgba(0, 0, 0, .34);
  opacity: 0; pointer-events: none; will-change: transform, opacity;
}
.balon b { font: 500 10px/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--gul); }
.balon span { font-family: var(--serif); font-size: 21px; line-height: 1.1; }

.js .sahne__ilerleme {
  display: block; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gul); transform-origin: 0 50%; transform: scaleX(0);
}

@media (max-width: 719px) {
  .js .soz { white-space: normal; width: calc(100vw - 36px); text-align: center; }
  .js .soz--plaka { width: auto; max-width: calc(100vw - 36px); white-space: nowrap; }
  .js .kunye { border-left: 0; padding-left: 0; align-items: center; }
}

/* ─────────── Bölümler ─────────── */

.js [data-gir] { opacity: 0; transform: translateY(24px); }
.js [data-gir].gor {
  opacity: 1; transform: none;
  transition: opacity .9s var(--yay), transform .9s var(--yay);
}

h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(46px, 6.6vw, 96px);
  line-height: .98; letter-spacing: -.02em;
}
h2 em { color: var(--gul); }

/* Kırk an: deste */

.fikir { background: var(--krem); padding: clamp(96px, 13vw, 180px) 0 clamp(90px, 11vw, 150px); position: relative; z-index: 1; }
.fikir__in {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
  gap: clamp(48px, 8vw, 130px); align-items: center;
}
.fikir__yazi h2 { margin-top: 18px; }
.fikir__alt { margin: 24px 0 34px; font-size: 18px; color: var(--murekkep-2); }

.deste { position: relative; width: 100%; max-width: 430px; aspect-ratio: 4 / 4.8; justify-self: center; }

.kartan {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  padding: 14px 14px 24px; border-radius: 28px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(30, 25, 23, .05), 0 18px 50px rgba(30, 25, 23, .12);
  cursor: grab; user-select: none; -webkit-user-select: none; touch-action: pan-y;
  transition: transform .55s var(--yay), opacity .3s;
  will-change: transform;
}
.kartan:active { cursor: grabbing; }
.kartan[data-yer="0"] { z-index: 3; }
.kartan[data-yer="1"] { z-index: 2; transform: translate(16px, 14px) rotate(3deg); }
.kartan[data-yer="2"] { z-index: 1; transform: translate(-14px, 26px) rotate(-3.5deg); }
.kartan.surukle { transition: none; }
.kartan.gizli { opacity: 0; transition: none; }

.kartan__fot { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; border-radius: 16px; overflow: hidden; }
.kartan__fot i {
  display: block; aspect-ratio: 1;
  background: url("assets/karolar-160.webp") 0 0 / 2000% 1200% no-repeat var(--krem-2);
}
.kartan__ust {
  display: flex; justify-content: space-between; gap: 12px;
  margin: 20px 10px 0;
  font: 500 10.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--murekkep-3);
}
.kartan__tema { color: var(--gul); }
.kartan h3 {
  margin: 12px 10px 0;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(28px, 3vw, 37px); line-height: 1.04; letter-spacing: -.012em;
}
.kartan__d { margin: 10px 10px 0; font-size: 15px; line-height: 1.5; color: var(--murekkep-2); }

/* Üç cümle */

.uc { background: var(--krem); padding-bottom: clamp(96px, 12vw, 170px); position: relative; z-index: 1; }
.uc__in { display: grid; grid-template-columns: repeat(3, 1fr); }
.uc__o { padding: 26px 28px 0 0; border-top: 1px solid var(--murekkep); }
.uc__o + .uc__o { padding-left: 28px; border-left: 1px solid var(--cizgi); }
.uc__no { font: 500 11px/1 var(--mono); letter-spacing: .14em; color: var(--gul); }
.uc__o h3 {
  margin: 18px 0 10px;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(30px, 3.3vw, 46px); line-height: 1.04; letter-spacing: -.012em;
}
.uc__o p { font-size: 16px; color: var(--murekkep-2); }

/* Kapanış */

.kapanis { background: var(--gece); color: var(--krem); padding-top: clamp(100px, 13vw, 180px); text-align: center; position: relative; z-index: 1; }
.kapanis__in { display: flex; flex-direction: column; align-items: center; }
.kapanis__im {
  width: min(46vw, 500px); min-width: 230px; height: auto;
  margin-bottom: clamp(52px, 7vw, 92px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .55);
}
.kapanis h2 { font-size: clamp(48px, 7.8vw, 118px); }
.kapanis h2 em { display: block; color: var(--gul-acik); }
.kapanis__dgm { display: flex; flex-direction: column; align-items: center; gap: 18px; margin-top: clamp(40px, 5vw, 60px); }
.kapanis__not { font: 500 10.5px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: rgba(251, 246, 238, .5); }

.alt {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px 28px;
  margin-top: clamp(96px, 12vw, 170px); padding: 26px var(--kenar);
  border-top: 1px solid rgba(251, 246, 238, .12);
  font-size: 13px; color: rgba(251, 246, 238, .55);
}
.alt .marka { font-size: 21px; color: var(--krem); }
.alt .marka img { width: 22px; height: 22px; }
.alt nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.alt nav a { text-decoration: none; transition: color .2s; }
.alt nav a:hover { color: var(--krem); }

@media (max-width: 860px) {
  .fikir__in { grid-template-columns: minmax(0, 1fr); }
  .deste { margin-top: 8px; }
  .uc__in { grid-template-columns: minmax(0, 1fr); }
  .uc__o, .uc__o + .uc__o { padding: 24px 0 34px; border-left: 0; }
  .uc__o + .uc__o { border-top: 1px solid var(--cizgi); }
}
@media (max-width: 480px) {
  .deste { aspect-ratio: 4 / 5.35; }
  .dil button { padding-inline: 5px; }
  .ust .dgm { padding: 11px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .ipucu i { animation: none; }
  .js [data-gir] { opacity: 1; transform: none; }
  .kartan, .dgm { transition: none; }
}