/* IBANIM tanıtım sayfası — müşteri sayfasıyla aynı dil: koyu zemin, altın vurgu, Didot başlık */
:root {
  --night: #0E0E0D; --night-2: #171715; --gold: #D4AF37; --gold-soft: #E3C79A;
  --paper: #F6F1E7; --paper-2: #EEE6D6; --ink: #1A1915; --ink-soft: #57534A; --line: #DCD3C1;
  --serif: Didot, "Bodoni 72", "Bodoni MT", "Playfair Display", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, "Roboto Mono", Consolas, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.55 var(--sans); -webkit-text-size-adjust: 100%; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
h1, h2, h3 { margin: 0; }
h2 { font: 400 clamp(30px, 5vw, 44px)/1.1 var(--serif); letter-spacing: .01em; margin-bottom: 18px; text-wrap: balance; }
h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .24em; text-transform: uppercase; color: #9A7B1E; margin: 0 0 12px; }
.muted { color: var(--ink-soft); }

/* Düğmeler */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 0 24px; border-radius: 999px;
  font-weight: 700; font-size: 16px; text-decoration: none; border: 1px solid transparent; transition: transform .1s, background .15s, border-color .15s; }
.btn:active { transform: scale(.98); }
.btn-gold { background: var(--gold); color: var(--night); }
.btn-gold:hover { background: #E0BE4E; }
.btn-ghost { border-color: rgba(255,255,255,.28); color: #fff; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-ghost-light { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-ghost-light:hover { border-color: var(--gold); color: var(--gold); }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: 14px; }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cta-row.center { justify-content: center; }

/* Üst çubuk */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--night) 90%, transparent); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08); color: #fff; }
.top-in { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .04em; font-size: 18px; text-decoration: none; }
.brand b { color: var(--gold); font-weight: 800; }
.mark { width: 26px; height: 26px; border-radius: 7px; background: var(--night-2); border: 1.6px solid var(--gold); position: relative; flex: 0 0 auto; }
.mark::after { content: ""; position: absolute; left: 3px; right: 3px; top: 8px; height: 1.6px; background: var(--gold); }
.nav { display: flex; gap: 22px; margin-left: 12px; }
.nav a { text-decoration: none; font-size: 15px; color: rgba(255,255,255,.72); }
.nav a:hover { color: #fff; }
.login { margin-left: auto; text-decoration: none; font-size: 15px; color: rgba(255,255,255,.72); }
.login:hover { color: #fff; }
.btn { white-space: nowrap; }
.top-in .try { margin-left: -6px; margin-right: -12px; }
@media (max-width: 760px) { .nav { display: none; } .top-in { gap: 14px; } }
@media (max-width: 480px) { .top-in { gap: 8px; } .top-in .try { margin: 0 0 0 4px; } .btn-sm { padding: 0 12px; font-size: 13px; } .brand { font-size: 16px; } .brand .mark { width: 22px; height: 22px; } .login { font-size: 14px; } }

/* Giriş bölümü */
.hero { background: radial-gradient(90% 70% at 75% 10%, rgba(212,175,55,.16), transparent 60%), var(--night); color: #fff; overflow: hidden; }
.hero-in { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding-top: 72px; padding-bottom: 88px; }
.hero h1 { font: 400 clamp(42px, 7vw, 72px)/1.02 var(--serif); letter-spacing: .005em; }
.hero h1 em { font-style: italic; color: var(--gold); }
.hero .eyebrow { color: var(--gold); }
.lead { font-size: clamp(17px, 2vw, 19px); color: rgba(255,255,255,.76); max-width: 34em; margin: 22px 0 0; }
.ticks { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 14px; color: rgba(255,255,255,.7); }
.ticks li::before { content: "✓"; color: var(--gold); font-weight: 700; margin-right: 7px; }

.hero-demo { position: relative; display: grid; justify-items: center; min-height: 680px; align-content: center; padding-bottom: 40px; }
.phone { width: 300px; border-radius: 44px; padding: 12px; background: #2A2A27; box-shadow: 0 0 0 1px rgba(255,255,255,.1), 0 40px 80px rgba(0,0,0,.55);
  position: relative; z-index: 2; transform: translateX(-56px) rotate(-2deg); }
.screen { border-radius: 33px; background: radial-gradient(120% 50% at 50% -5%, rgba(212,175,55,.18), transparent 60%), #121212;
  padding: 34px 16px 24px; text-align: center; min-height: 500px; }
.s-logo { width: 62px; height: 62px; margin: 0 auto 12px; border-radius: 50%; box-shadow: inset 0 0 0 1px var(--gold); color: var(--gold);
  display: grid; place-items: center; font: 400 30px/1 var(--serif); }
.s-title { font: 400 30px/1 var(--serif); color: var(--gold); letter-spacing: .05em; }
.s-sub { font-size: 9px; letter-spacing: .32em; font-weight: 600; color: rgba(255,255,255,.7); margin-top: 6px; }
.s-rule { width: 30px; height: 1px; background: var(--gold); margin: 14px auto 16px; }
.s-memo { display: flex; justify-content: space-between; align-items: center; gap: 8px; border: 1px dashed var(--gold); border-radius: 12px; padding: 8px 8px 8px 12px; text-align: left; margin-bottom: 12px; }
.s-memo span, .s-holder span { display: block; font-size: 8.5px; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.5); font-weight: 600; }
.s-memo strong { font-size: 14px; }
.s-card { background: #232321; border: 1px solid rgba(212,175,55,.26); border-radius: 16px; padding: 14px 12px 12px; text-align: left; }
.s-head { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; margin-bottom: 10px; }
.s-head span { font-size: 9px; font-weight: 700; letter-spacing: .08em; color: var(--gold); border: 1px solid rgba(212,175,55,.3); border-radius: 99px; padding: 2px 7px; }
.s-holder { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding-bottom: 10px; border-bottom: 1px solid rgba(212,175,55,.22); }
.s-holder strong { font-size: 14px; }
.s-iban { font: 600 11.4px/1.4 var(--mono); text-align: center; margin: 12px 0 10px; word-spacing: -.12em; white-space: nowrap; }
.s-copy { width: 100%; min-height: 40px; border: 0; border-radius: 11px; background: var(--gold); color: #121212; font: 700 14px var(--sans); cursor: pointer; }
.s-chip { flex: 0 0 auto; min-height: 30px; padding: 0 10px; border-radius: 99px; border: 1px solid rgba(212,175,55,.35); background: transparent; color: var(--gold); font: 600 11.5px var(--sans); cursor: pointer; }
.s-copy.done, .s-chip.done { filter: saturate(.6) brightness(1.15); }

.stand { position: absolute; z-index: 3; right: 0; bottom: 64px; width: 150px; border-radius: 6px; overflow: hidden; background: #fff;
  box-shadow: 0 30px 60px rgba(0,0,0,.5); transform: rotate(5deg); color: var(--night); text-align: center; }
.stand-top { background: #0E2620; color: var(--gold); padding: 14px 8px 10px; }
.stand-top span { display: block; font: 400 19px/1 var(--serif); letter-spacing: .03em; }
.stand-top small { display: block; font-size: 6.5px; letter-spacing: .18em; margin-top: 6px; color: rgba(255,255,255,.8); font-weight: 700; }
.stand-qr { display: block; width: 104px; height: 104px; margin: 12px auto 4px; }
.stand-no { font: 400 18px/1 var(--serif); color: #0E2620; padding-bottom: 12px; }
.stand-no::before, .stand-no::after { content: ""; display: inline-block; width: 12px; height: 1px; background: var(--gold); vertical-align: middle; margin: 0 7px; }
.demo-note { position: absolute; bottom: 0; left: 0; right: 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.5); margin: 0; }

@media (max-width: 900px) {
  .hero-in { grid-template-columns: 1fr; gap: 40px; padding-top: 48px; padding-bottom: 56px; }
  .hero-demo { min-height: 0; padding-bottom: 36px; }
  .phone { transform: rotate(-2deg); }
  .stand { right: max(0px, calc(50% - 240px)); width: 128px; bottom: 70px; }
  .stand-qr { width: 88px; height: 88px; }
}
@media (max-width: 420px) { .phone { width: 280px; } .stand { display: none; } }

/* Bölümler */
.sec { padding: 96px 0; }
.sec-alt { background: var(--paper-2); }
@media (max-width: 700px) { .sec { padding: 64px 0; } }

.steps { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: s; }
.steps li { border-top: 1px solid var(--line); padding-top: 22px; }
.num { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--gold); color: #9A7B1E;
  font: 400 20px/1 var(--serif); margin-bottom: 16px; }
.steps p, .feat p { color: var(--ink-soft); margin: 0; font-size: 16px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; gap: 8px; } }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.feat { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
.feat svg { width: 30px; height: 30px; fill: none; stroke: #9A7B1E; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }

.who { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { border: 1px solid var(--line); background: #fff; border-radius: 99px; padding: 9px 16px; font-size: 15px; font-weight: 600; }
@media (max-width: 800px) { .who { grid-template-columns: 1fr; gap: 24px; } }

details { border-bottom: 1px solid var(--line); }
details:first-of-type { border-top: 1px solid var(--line); margin-top: 28px; }
summary { cursor: pointer; list-style: none; padding: 20px 36px 20px 0; font-weight: 700; font-size: 17px; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font: 400 26px/1 var(--serif); color: #9A7B1E; transition: transform .2s; }
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
details p { margin: -6px 0 20px; color: var(--ink-soft); }

.cta { background: radial-gradient(70% 90% at 50% 0%, rgba(212,175,55,.18), transparent 70%), var(--night); color: #fff; text-align: center; }
.cta-in { max-width: 720px; }
.cta p { color: rgba(255,255,255,.74); margin: 0 auto; max-width: 34em; }
.cta .mail-line { margin-top: 20px; font-size: 15px; color: rgba(255,255,255,.55); }
.cta .mail-line a { color: var(--gold); }

.foot { background: var(--night); color: rgba(255,255,255,.55); border-top: 1px solid rgba(255,255,255,.08); font-size: 14px; }
.foot-in { display: flex; align-items: center; gap: 20px; padding-top: 22px; padding-bottom: 22px; flex-wrap: wrap; }
.foot .brand.small { font-size: 15px; color: #fff; }
.foot .brand.small .mark { width: 20px; height: 20px; border-radius: 5px; }
.foot .brand.small .mark::after { top: 6px; }
.foot a { margin-left: auto; text-decoration: none; }
.foot a:hover { color: #fff; }

.toast { position: fixed; left: 50%; bottom: max(24px, env(safe-area-inset-bottom)); transform: translate(-50%, 20px); z-index: 50;
  background: #fff; color: var(--night); font-weight: 700; font-size: 14px; padding: 10px 18px; border-radius: 99px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .toast, .btn { transition: none; } }
@media (max-width: 400px) { .top .wrap { padding: 0 14px; } .top .brand .mark { display: none; } .top .btn-sm { padding: 0 10px; } }