/* Somewise sitesi · sisli akış. Renk yalnız siste; sayfa siyah, beyaz ve krem.
   Zemin: html[data-zemin] = krem | koyu (menüdeki güneş ve ay). Sisli sayfalarda html.sisli ve html[data-tone] (sis.js). */
:root {
  --ink: #111110; --light: #F3EFE8; --krem: #F4F1EC; --gece: #0D0E0B;
  --glide: cubic-bezier(.19, 1, .22, 1);
  --gut: clamp(18px, 3.4vw, 48px);
  --max: 1180px;
  /* kâğıt (düz sayfalar ve stüdyo bölümü) */
  --bg: var(--krem); --fg: var(--ink); --soft: rgba(17, 17, 16, .62); --line: rgba(17, 17, 16, .18);
  --glass: rgba(244, 241, 236, .66);
  --nav-fg: var(--fg);
  color-scheme: light;
}
[data-zemin="koyu"] {
  --bg: var(--gece); --fg: var(--light); --soft: rgba(243, 239, 232, .66); --line: rgba(243, 239, 232, .2);
  --glass: rgba(13, 14, 11, .55);
  color-scheme: dark;
}
/* sisli sayfada menünün rengi altındaki zemine göre */
[data-tone="dark"]  { --nav-fg: var(--light); --glass: rgba(12, 12, 10, .24); }
[data-tone="light"] { --nav-fg: var(--ink);   --glass: rgba(244, 241, 236, .66); }

* { box-sizing: border-box; }
html { background: var(--bg); color: var(--fg); -webkit-text-size-adjust: 100%; scroll-behavior: smooth; transition: background-color .9s var(--glide), color .9s var(--glide); }
html.sisli { background: #0B0C09; }
body { margin: 0; font: 400 17px/1.55 "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
:where(a) { color: inherit; text-decoration: none; }
img, svg { display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 30; background: var(--fg); color: var(--bg); padding: 10px 18px; border-radius: 75px; }
.skip:focus { top: 12px; }
:focus-visible { outline: 1px solid currentColor; outline-offset: 4px; }

/* Sis tuvali */
canvas.sis { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; }
canvas.sis.yok { background: radial-gradient(120% 90% at 30% 20%, #3a1a14, #0B0C09 70%); }

/* Menü: sabit; aşağı inerken çekilir, yukarı çıkarken buzlu camla döner */
.nav { position: fixed; z-index: 20; inset: 0 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px var(--gut); color: var(--nav-fg);
  transition: color .8s var(--glide), transform .9s var(--glide), background-color .6s, -webkit-backdrop-filter .6s, backdrop-filter .6s; }
.nav.gizli { transform: translateY(-100%); }
.nav.dolu { background-color: var(--glass); -webkit-backdrop-filter: blur(18px) saturate(1.15); backdrop-filter: blur(18px) saturate(1.15); }
.nav .wm { font-size: 20px; letter-spacing: -.04em; }
.nav .sag { display: flex; align-items: center; gap: 28px; }
.nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.nav ul a { opacity: .75; transition: opacity .4s; }
.nav ul a:hover, .nav ul a[aria-current] { opacity: 1; }
@media (max-width: 520px) { .nav .sag { gap: 12px; } .nav ul { gap: 14px; letter-spacing: .08em; } }
@media (max-width: 360px) { .nav ul li:nth-child(2) { display: none; } }

/* Zemin düğmesi: açıkta güneş, koyuda ay. Işınlar çekilir, daire büyüyüp hilale döner */
.zemin { display: grid; place-items: center; width: 44px; height: 44px; margin: -14px -14px -14px 0; padding: 0; border: 0; background: none; color: inherit; cursor: pointer; opacity: .85; transition: opacity .4s; }
.zemin:hover { opacity: 1; }
.zemin:focus-visible { outline-offset: -8px; border-radius: 50%; }
.zemin svg { width: 18px; height: 18px; overflow: visible; }
.zemin .govde { fill: currentColor; transform-origin: 12px 12px; transition: transform 1s var(--glide); }
.zemin .oyuk { transition: transform 1s var(--glide); }
.zemin .isin { stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; transform-origin: 12px 12px; transition: transform 1s var(--glide), opacity .5s; }
.zemin[aria-pressed="true"] .govde { transform: scale(1.65); }
.zemin[aria-pressed="true"] .oyuk { transform: translate(-7.4px, 4.6px); }
.zemin[aria-pressed="true"] .isin { transform: scale(.4) rotate(45deg); opacity: 0; }

/* Bölümler */
.bolum { position: relative; min-height: 100svh; padding: 18vh var(--gut) 12vh; display: grid; align-content: center; transition: color .9s var(--glide); }
.bolum.sisli { color: var(--light); --soft: rgba(243, 239, 232, .68); --line: rgba(243, 239, 232, .3); }
.bolum.kagit { color: var(--fg); isolation: isolate; }
/* Kâğıdın gerçek zemini: sis çizemese de yazı okunur. Kenarlarda saydamlaşır, sisin tülleri görünür. */
.bolum.kagit::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--bg); transition: background-color .9s var(--glide);
  -webkit-mask-image: linear-gradient(transparent, #000 24vh, #000 calc(100% - 24vh), transparent); mask-image: linear-gradient(transparent, #000 24vh, #000 calc(100% - 24vh), transparent); }
.ic { width: 100%; max-width: var(--max); margin: 0 auto; }
.tag { display: inline-block; font-size: 12px; letter-spacing: .04em; color: var(--soft); }
.tag::before { content: "( "; } .tag::after { content: " )"; }
.whisper { font-weight: 300; font-size: clamp(34px, 5.2vw, 78px); line-height: 1.08; letter-spacing: -.03em; margin: 22px 0 0; max-width: 18ch; }
.govde-metin { font-size: 18px; line-height: 1.55; color: var(--soft); max-width: 42ch; margin: 28px 0 0; }
.pill { display: inline-flex; align-items: center; min-height: 44px; margin-top: 34px; padding: 0 33px; border: 1px solid var(--line); border-radius: 75px; font-size: 15px; background: none; color: inherit; font-family: inherit; cursor: pointer; transition: border-color .4s, letter-spacing .8s var(--glide); }
.pill:hover { border-color: currentColor; letter-spacing: .02em; }
.yakinda { display: inline-block; margin-top: 30px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--soft); }

/* Giriş */
.giris { text-align: center; padding-block: 0; }
.giris h1 { font-weight: 300; font-size: clamp(34px, 3.6vw, 60px); letter-spacing: -.03em; line-height: 1.05; margin: 0; }
.giris p { margin: 14px 0 0; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--soft); }
.rozet { position: absolute; left: var(--gut); bottom: clamp(18px, 3vw, 40px); width: 88px; height: 88px; color: var(--soft); animation: don 26s linear infinite; }
.rozet text { font: 400 9px "Hanken Grotesk", sans-serif; letter-spacing: .3em; text-transform: uppercase; fill: currentColor; }
@keyframes don { to { transform: rotate(360deg); } }

/* Uygulama bölümleri */
.uyg h2, .uyg h1 { font-weight: 300; font-size: clamp(72px, 13vw, 210px); line-height: .86; letter-spacing: -.05em; margin: 18px 0 0; }

/* Stüdyo */
.studyo .ic { display: grid; grid-template-columns: 1fr 1fr; gap: 48px 80px; align-items: end; }
.studyo .whisper { max-width: 16ch; }
.liste { list-style: none; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--line); }
.liste li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.liste li > span:last-child { color: var(--soft); text-align: right; }
@media (max-width: 760px) { .studyo .ic { grid-template-columns: 1fr; gap: 36px; } }

/* İletişim */
.iletisim .whisper { max-width: none; font-size: clamp(48px, 8vw, 128px); }

/* Alt bilgi */
.alt { display: flex; justify-content: space-between; align-items: center; gap: 12px 24px; flex-wrap: wrap; padding: 26px var(--gut) 32px; font-size: 13px; color: var(--soft); }
.alt ul { display: flex; flex-wrap: wrap; gap: 8px 22px; list-style: none; margin: 0; padding: 0; }
.alt a { transition: color .4s; } .alt a:hover { color: var(--fg); }
.sisli-sayfa .alt { color: rgba(243, 239, 232, .62); }
.sisli-sayfa .alt a:hover { color: var(--light); }

/* Sisten netleşerek belirme (yalnız betik varken) */
.js .bulanik { opacity: 0; filter: blur(12px); transform: translateY(10px); transition: opacity 1.6s var(--glide), filter 1.8s var(--glide), transform 1.6s var(--glide); }
.js .bulanik.net { opacity: 1; filter: blur(0); transform: none; }
.bulanik.d2 { transition-delay: .15s; } .bulanik.d3 { transition-delay: .3s; }

/* Şifre sayfası: uzun içerik kâğıt bölümde */
.uzun { display: block; min-height: 0; padding-block: 22vh 16vh; }
.uzun .ic { max-width: 980px; }
.blok + .blok { margin-top: clamp(96px, 14vw, 180px); }
.blok h2 { font-weight: 300; font-size: clamp(30px, 4vw, 54px); line-height: 1.1; letter-spacing: -.03em; margin: 18px 0 0; max-width: 20ch; }
.giris-metni { font-weight: 300; font-size: clamp(24px, 2.8vw, 36px); line-height: 1.3; letter-spacing: -.02em; max-width: 30ch; margin: 0; }
.ipuclari { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px; margin-top: 44px; }
.ipucu { border-top: 1px solid var(--fg); padding-top: 18px; }
.ipucu .n { font-weight: 300; font-size: clamp(56px, 8vw, 104px); line-height: .9; letter-spacing: -.04em; }
.ipucu h3 { font-weight: 500; font-size: 20px; letter-spacing: -.01em; margin: 16px 0 8px; }
.ipucu p { margin: 0; color: var(--soft); }
@media (max-width: 640px) { .ipuclari { grid-template-columns: 1fr; } }
.ornek { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 40px; font-variant-numeric: tabular-nums; color: var(--soft); font-size: 14px; }
.ornek .rakamlar { display: flex; gap: 6px; color: var(--fg); }
.ornek .rakamlar span { width: 46px; height: 54px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; font-size: 24px; }
.ornek b { color: var(--fg); font-weight: 500; font-size: 20px; margin-left: 6px; }
.bicimler { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 44px 36px; margin-top: 44px; }
.bicimler h3 { font-weight: 500; font-size: 19px; letter-spacing: -.01em; margin: 0 0 8px; }
.bicimler p { margin: 0; color: var(--soft); }
@media (max-width: 900px) { .bicimler { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .bicimler { grid-template-columns: 1fr; } }
.kunye { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); margin: 44px 0 0; }
.kunye div { padding: 16px 16px 16px 0; border-bottom: 1px solid var(--line); }
.kunye dt { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--soft); margin-bottom: 6px; }
.kunye dd { margin: 0; font-size: 17px; }
@media (max-width: 760px) { .kunye { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.yardim .pill + .pill { margin-left: 10px; }

/* Deneme kasası */
[data-vault][hidden] { display: none; }
.kasa { margin-top: 40px; border-top: 1px solid var(--line); padding-top: 28px; display: grid; gap: 18px; }
.kasa form { display: grid; gap: 10px; }
.kasa form[hidden], .kasa__bitti[hidden] { display: none; }
.kasa label { font-size: 13px; color: var(--soft); }
.kasa__satir { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.kasa input {
  font: 400 40px/1 "Hanken Grotesk", sans-serif; font-variant-numeric: tabular-nums; letter-spacing: .62em; padding: 10px 0 10px .3em; width: 6.4ch;
  border: 0; border-radius: 0; color: var(--fg); caret-color: currentColor;
  background: linear-gradient(90deg, currentColor 0 72%, transparent 72%) 0 100% / 25% 1px repeat-x, transparent;
}
.kasa .pill { margin-top: 0; }
.kasa__durum { margin: 0; min-height: 1.5em; }
.kasa__bitti { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.kasa__bitti .buyuk { font-weight: 300; font-size: clamp(32px, 4vw, 48px); letter-spacing: -.03em; }
.kasa__not { margin: 0; font-size: 14px; color: var(--soft); }
.kasa ol { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.kasa ol:empty { border-top: 0; }
.kasa li { display: grid; grid-template-columns: auto 1fr 1fr; gap: 24px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.kasa li:first-child { animation: kasa-gir .6s var(--glide); }
.kasa .g { display: flex; gap: 6px; }
.kasa .g b { width: 32px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 8px; font-weight: 400; font-size: 18px; }
.kasa .r { font-size: 13px; color: var(--soft); }
.kasa .r b { color: var(--fg); font-weight: 500; font-size: 17px; margin-left: 6px; }
@keyframes kasa-gir { from { opacity: 0; transform: translateY(-6px); } }

/* Yasal sayfalar: düz kâğıt, uzun okuma */
.yasal { max-width: 760px; margin-inline: auto; padding: clamp(120px, 16vw, 180px) var(--gut) clamp(80px, 10vw, 140px); }
.yasal .crumbs { display: flex; justify-content: space-between; align-items: center; gap: 14px 24px; flex-wrap: wrap; margin: 0 0 28px; font-size: 13px; color: var(--soft); }
.yasal .belgeler { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.yasal .belgeler a { border-bottom: 1px solid var(--line); transition: border-color .4s, color .4s; }
.yasal .belgeler a:hover, .yasal .belgeler a[aria-current] { border-color: currentColor; color: var(--fg); }
/* Dil anahtarı: belge bağlantılarından ayrı, sağda; bulunulan dil dolu */
.yasal .dil { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 75px; }
.yasal .dil a { padding: 5px 13px; border-radius: 75px; line-height: 1.2; transition: background-color .4s, color .4s; }
.yasal .dil a:hover { color: var(--fg); }
.yasal .dil a[aria-current] { background: var(--fg); color: var(--bg); pointer-events: none; }
.yasal h1 { font-weight: 300; font-size: clamp(40px, 6vw, 72px); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 14px; }
.yasal .date { color: var(--soft); margin: 0 0 40px; font-size: 15px; }
.yasal .lead { font-size: 20px; line-height: 1.5; margin: 0 0 40px; }
.yasal h2 { font-weight: 500; font-size: 22px; letter-spacing: -.015em; margin: 64px 0 12px; padding-top: 24px; border-top: 1px solid var(--line); }
.yasal p, .yasal li { max-width: 68ch; }
.yasal ul { padding-left: 1.2em; } .yasal li { margin: 8px 0; }
.yasal strong { font-weight: 600; }
.yasal main a, .yasal p a, .yasal li a { border-bottom: 1px solid var(--line); }
.yasal .toc { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 20px 0; margin-bottom: 40px; }
.yasal .toc .etiket { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--soft); }
.yasal .toc ol { margin: 10px 0 0; padding-left: 1.3em; columns: 2; column-gap: 40px; font-size: 15px; }
.yasal .toc a { border: 0; }
@media (max-width: 560px) { .yasal .toc ol { columns: 1; } }

/* 404 */
.kayip { text-align: center; }
.kayip h1 { font-weight: 300; font-size: clamp(40px, 6vw, 88px); letter-spacing: -.035em; line-height: 1.02; margin: 18px 0 0; }
.kayip .govde-metin { margin-inline: auto; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .bulanik { opacity: 1; filter: none; transform: none; transition: none; }
  .rozet { animation: none; }
  .nav { transition: color .3s, background-color .3s; }
  .kasa li:first-child { animation: none; }
}