/* Nohut AI — tanıtım sayfası. Karanlık stüdyo zemininde şampanya altını;
   açık tema prefers-color-scheme ve data-theme ile token seviyesinde. */
:root {
  --bg: #120E08;
  --bg2: #17120B;
  --surface: #1E1811;
  --surface2: #251E13;
  --ink: #F0E8D9;
  --muted: #A2937B;
  --line: #342A1B;
  --gold: #D8B071;
  --gold-deep: #A97F3C;
  --gold-tint: #2E2412;
  --good: #6FAF8C;
  --serif: Didot, "Didot LT STD", "Bodoni MT", "Playfair Display", "Times New Roman", serif;
  --sans: "Segoe UI", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, "SF Mono", monospace;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #F2EFE9; --bg2: #ECE8DF; --surface: #FBFAF6; --surface2: #F0EBE0;
    --ink: #221B10; --muted: #6E6455; --line: #DCD4C4;
    --gold: #A97F3C; --gold-deep: #8A6528; --gold-tint: #EFE4CB; --good: #3E7D5C;
  }
}
:root[data-theme="light"] {
  --bg: #F2EFE9; --bg2: #ECE8DF; --surface: #FBFAF6; --surface2: #F0EBE0;
  --ink: #221B10; --muted: #6E6455; --line: #DCD4C4;
  --gold: #A97F3C; --gold-deep: #8A6528; --gold-tint: #EFE4CB; --good: #3E7D5C;
}
:root[data-theme="dark"] {
  --bg: #120E08; --bg2: #17120B; --surface: #1E1811; --surface2: #251E13;
  --ink: #F0E8D9; --muted: #A2937B; --line: #342A1B;
  --gold: #D8B071; --gold-deep: #A97F3C; --gold-tint: #2E2412; --good: #6FAF8C;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); line-height: 1.6; }
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* NAV */
nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 28px; padding: 16px 0; }
.logo { font-family: var(--serif); font-size: 22px; letter-spacing: 0.01em; display: inline-flex; align-items: center; gap: 8px; }
.logo .logo-mark { flex: none; }
.logo em { color: var(--gold); font-style: italic; }
.nav-links { display: flex; gap: 22px; font-size: 14px; color: var(--muted); margin-left: auto; }
.nav-links a:hover { color: var(--ink); }
@media (max-width: 720px) { .nav-links { display: none; } .nav-in { justify-content: space-between; } }
.btn {
  display: inline-block; border-radius: 10px; padding: 11px 20px; font-size: 14px;
  font-weight: 600; border: 1px solid transparent; cursor: pointer;
}
.btn.gold { background: linear-gradient(160deg, #E8CB92, #C09659); color: #241A0B; box-shadow: 0 6px 20px rgba(200,150,80,0.22); }
.btn.gold:hover { filter: brightness(1.06); }
.btn.ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn.ghost:hover { border-color: var(--gold); color: var(--gold); }
.nav-cta { font-size: 13px; padding: 9px 16px; }

/* HERO */
.hero { padding: 84px 0 72px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% -20% auto; height: 130%;
  background: radial-gradient(50% 60% at 65% 30%, rgba(216,176,113,0.13), transparent 70%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; position: relative; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin: 0 0 18px; }
h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(38px, 5.2vw, 62px); line-height: 1.06; margin: 0 0 22px; text-wrap: balance; }
h1 em { font-style: italic; color: var(--gold); }
.hero p.sub { color: var(--muted); font-size: 17px; max-width: 52ch; margin: 0 0 30px; }
.hero .btns { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .note { font-size: 12.5px; color: var(--muted); margin-top: 14px; font-family: var(--mono); }

/* Önce/Sonra kaydırıcı — gerçek PoC çıktısı (img07: coin küpe, NB Pro) */
.ba { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 3/4; border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0,0,0,0.35); }
.ba img.layer { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.ba img.after-l { clip-path: inset(0 0 0 var(--cut, 50%)); }
.ba .tag { position: absolute; top: 14px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; padding: 5px 11px; border-radius: 999px; background: rgba(0,0,0,0.45); color: #f0e8d9; backdrop-filter: blur(4px); }
.ba .tag.l { left: 14px; } .ba .tag.r { right: 14px; color: #ecd39b; }
.ba .divider { position: absolute; top: 0; bottom: 0; left: var(--cut, 50%); width: 2px; background: var(--gold); box-shadow: 0 0 12px rgba(216,176,113,0.8); pointer-events: none; }
.ba .divider::after { content: "⟷"; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 38px; height: 38px; border-radius: 50%; background: var(--gold); color: #241A0B;
  display: grid; place-items: center; font-size: 15px; }
.ba input[type="range"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }

/* Bölüm başlıkları */
section { padding: 76px 0; }
section.alt { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 3.4vw, 40px); margin: 0 0 12px; text-wrap: balance; }
.section-sub { color: var(--muted); max-width: 62ch; margin: 0 0 44px; font-size: 15.5px; }

/* Nasıl çalışır */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 26px; position: relative; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--mono); font-size: 12px; color: var(--gold); letter-spacing: 0.15em;
}
.step h3 { font-family: var(--serif); font-size: 22px; font-weight: 500; margin: 10px 0 8px; }
.step p { font-size: 14px; color: var(--muted); margin: 0; }
.step .hl { color: var(--gold); }

/* Gerçek çıktılar */
.pairs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .pairs { grid-template-columns: 1fr; } }
.pair { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.pair-imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--line); }
.pi { position: relative; aspect-ratio: 3/4.2; overflow: hidden; }
.pi img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pi .chip { position: absolute; left: 8px; bottom: 8px; font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; padding: 3px 8px; border-radius: 999px; background: rgba(0,0,0,0.5);
  color: #f0e8d9; backdrop-filter: blur(3px); }
.pi .chip.after { color: #241A0B; background: rgba(232,203,146,0.92); }
.pair figcaption { display: flex; align-items: center; gap: 10px; padding: 13px 15px; font-size: 12.5px; color: var(--muted); font-family: var(--mono); }

/* Tema galerisi */
.themes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 1000px) { .themes { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .themes { grid-template-columns: 1fr; } }
.theme { border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: var(--surface); transition: transform 0.25s, box-shadow 0.25s; }
.theme:hover { transform: translateY(-4px); box-shadow: 0 18px 44px rgba(0,0,0,0.3); }
@media (prefers-reduced-motion: reduce) { .theme { transition: none; } .theme:hover { transform: none; } }
.theme .vis { aspect-ratio: 1; position: relative; overflow: hidden; }
.vis-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.theme .t-body { padding: 16px 18px 18px; }
.theme h3 { font-family: var(--serif); font-size: 19px; font-weight: 500; margin: 0 0 4px; }
.theme .t-sec { font-size: 12px; color: var(--muted); margin: 0 0 12px; }
.t-foot { display: flex; align-items: center; justify-content: space-between; }
.tier { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; border-radius: 5px; padding: 3px 8px; }
.tier.std { color: var(--muted); background: var(--surface2); border: 1px solid var(--line); }
.tier.prm { color: var(--gold); background: var(--gold-tint); }
.tier.ult { color: #241A0B; background: linear-gradient(160deg, #E8CB92, #C09659); }
.cost { font-family: var(--mono); font-size: 14px; color: var(--gold); font-variant-numeric: tabular-nums; }
.cost small { color: var(--muted); font-size: 11px; }

/* Fiyatlandırma */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; } }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 30px 28px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold), 0 24px 60px rgba(0,0,0,0.25); position: relative; }
.plan.featured::before { content: "EN ÇOK TERCİH"; position: absolute; top: -11px; left: 28px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; background: var(--gold); color: #241A0B; border-radius: 5px; padding: 3px 9px; }
.plan h3 { font-family: var(--serif); font-size: 23px; font-weight: 500; margin: 0 0 4px; }
.plan .p-sub { font-size: 13px; color: var(--muted); margin: 0 0 18px; }
.price { font-family: var(--mono); font-size: 34px; font-variant-numeric: tabular-nums; margin: 0 0 2px; }
.price small { font-size: 13px; color: var(--muted); }
.per { font-family: var(--mono); font-size: 11.5px; color: var(--gold); margin: 0 0 20px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; font-size: 13.5px; color: var(--muted); display: flex; flex-direction: column; gap: 9px; }
.plan li::before { content: "◈ "; color: var(--gold); }
.plan .btn { margin-top: auto; text-align: center; }

/* Güven şeridi */
.assure { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 800px) { .assure { grid-template-columns: 1fr; } }
.assure div { border-left: 2px solid var(--gold); padding: 4px 0 4px 18px; }
.assure b { display: block; font-size: 15px; margin-bottom: 4px; }
.assure span { font-size: 13.5px; color: var(--muted); }

/* SSS */
details { border-bottom: 1px solid var(--line); padding: 4px 0; }
summary { cursor: pointer; font-size: 16px; font-weight: 600; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::after { content: "+"; font-family: var(--mono); color: var(--gold); font-size: 20px; }
details[open] summary::after { content: "−"; }
details p { margin: 0 0 18px; color: var(--muted); font-size: 14.5px; max-width: 70ch; }

/* Kapanış CTA + footer */
.final { text-align: center; padding: 90px 0; position: relative; overflow: hidden; }
.final::before { content: ""; position: absolute; inset: auto -20% -60%; height: 120%;
  background: radial-gradient(50% 60% at 50% 100%, rgba(216,176,113,0.12), transparent 70%); pointer-events: none; }
.final h2 { font-size: clamp(30px, 4vw, 48px); }
footer { border-top: 1px solid var(--line); padding: 34px 0 46px; color: var(--muted); font-size: 13px; }
.foot-in { display: flex; flex-wrap: wrap; gap: 18px 34px; align-items: center; }
.foot-in .logo { font-size: 18px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-left: auto; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--gold); }

/* Ödeme logoları — footer bandı (iyzico / Visa / Mastercard) */
.pay-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line); }
.pay-label { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pay-band { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pay-chip { display: inline-flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; height: 34px; padding: 0 12px; }
.pay-chip img { display: block; height: 18px; width: auto; }
.pay-chip.iyz img { height: 15px; }

/* Bilgi / sözleşme sayfaları */
.legal { max-width: 820px; margin: 0 auto; padding: 44px 24px 76px; }
.legal h1 { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); line-height: 1.15; margin: 0 0 8px; }
.legal .updated { color: var(--muted); font-size: 13px; margin: 0 0 30px; }
.legal h2 { font-size: 20px; margin: 34px 0 10px; color: var(--gold); }
.legal h3 { font-size: 16px; margin: 22px 0 6px; }
.legal p, .legal li { font-size: 15px; color: var(--ink); }
.legal ul, .legal ol { padding-left: 22px; margin: 10px 0; }
.legal li { margin: 6px 0; }
.legal a { color: var(--gold); }
.legal strong { color: var(--ink); }
.legal .box { background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; margin: 20px 0; }
.legal address { font-style: normal; line-height: 1.85; }
.legal .tbl { overflow-x: auto; }
.legal table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.legal th, .legal td { text-align: left; padding: 9px 12px; border: 1px solid var(--line); vertical-align: top; }
.legal th { background: var(--surface); font-weight: 600; white-space: nowrap; }
.legal .back-link { display: inline-block; margin-top: 10px; color: var(--muted); font-size: 14px; }
.legal .back-link:hover { color: var(--gold); }