/* Bütço — butco.app
   Renkler uygulamanın Asset Catalog'undaki fin* token'larından alındı. */

:root {
  --bg: #F2EEE9;
  --surface: #FDFBF9;
  --surface-alt: #E9E3DB;
  --border: #E3DCD3;
  --text: #1A1C20;
  --text-2: #6E7580;
  --text-3: #9AA3B2;
  --primary: #6C5CE7;
  --primary-on: #4A3BC4;
  --primary-tint: #EFEBFF;
  --lavender: #B79CFF;
  --mint: #00C9A7;
  --mint-on: #067A66;
  --mint-tint: #E8F8F4;
  --peach: #FF8A65;
  --peach-on: #C0502F;
  --peach-tint: #FFEDE6;
  --sun: #FFC94D;
  --sun-on: #8A6100;
  --sun-tint: #FFF3D6;
  --sky: #4EA8FF;
  --sky-on: #1C6FC4;
  --sky-tint: #E6F2FF;
  --rose-on: #C02348;
  --rose-tint: #FFE9EE;
  --shadow: 0 1px 2px rgba(26, 28, 32, .04), 0 8px 24px rgba(26, 28, 32, .06);
  --shadow-lg: 0 30px 60px -20px rgba(74, 59, 196, .35), 0 12px 24px -12px rgba(26, 28, 32, .18);
  --hero-grad: linear-gradient(135deg, #6C5CE7 0%, #8B7CFF 55%, #B79CFF 100%);
  --radius: 24px;
  --font: ui-rounded, "SF Pro Rounded", "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131521;
    --surface: #1C1F2E;
    --surface-alt: #262A3B;
    --border: #333749;
    --text: #F2F1F6;
    --text-2: #9AA0B4;
    --text-3: #7A8196;
    --primary: #8B7CFF;
    --primary-on: #B4A5FF;
    --primary-tint: #272350;
    --lavender: #C9B6FF;
    --mint: #2FE0C0;
    --mint-on: #4FE3C4;
    --mint-tint: #12312C;
    --peach: #FFA07E;
    --peach-on: #FFB199;
    --peach-tint: #3A251E;
    --sun: #FFD470;
    --sun-on: #FFD470;
    --sun-tint: #3A2E14;
    --sky: #6FBBFF;
    --sky-on: #9CCDFF;
    --sky-tint: #17273C;
    --rose-on: #FF8FA6;
    --rose-tint: #3A1D26;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    --shadow-lg: 0 30px 60px -20px rgba(0, 0, 0, .6), 0 12px 24px -12px rgba(0, 0, 0, .4);
    --hero-grad: linear-gradient(135deg, #5B4BD6 0%, #7A6BF0 55%, #9F86F5 100%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary-on); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; border-radius: 8px; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

/* ---------- Üst bar ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--text); letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  color: var(--text-2); font-weight: 700; font-size: 15px;
  padding: 8px 12px; border-radius: 12px;
}
.nav-links a:hover { background: var(--surface-alt); color: var(--text); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--primary-on); background: var(--primary-tint); }
@media (max-width: 560px) {
  .nav-links a.hide-sm { display: none; }
  .nav-links a { padding: 8px 9px; font-size: 14px; }
}

/* ---------- Düğmeler ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 22px; border-radius: 16px;
  font: inherit; font-weight: 800; font-size: 16px; border: 0; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--hero-grad); color: #fff; box-shadow: 0 10px 24px -10px rgba(108, 92, 231, .7); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.btn-ghost:hover { background: var(--surface-alt); }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn small { display: block; font-size: 11px; font-weight: 700; opacity: .85; line-height: 1.1; }
.btn .stack { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.15; }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 40px; }
.hero .wrap { display: grid; gap: 48px; align-items: center; }
@media (min-width: 900px) { .hero { padding: 88px 0 72px; } .hero .wrap { grid-template-columns: 1.05fr .95fr; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--mint-tint); color: var(--mint-on);
  font-weight: 800; font-size: 13px; padding: 6px 12px; border-radius: 999px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--mint); }
h1 {
  font-size: clamp(38px, 7vw, 64px); line-height: 1.04; letter-spacing: -.03em;
  margin: 18px 0 18px; font-weight: 800;
}
h1 .grad { background: var(--hero-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--text-2); max-width: 34em; margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; color: var(--text-2); font-weight: 700; font-size: 14px; }
.pills span { display: inline-flex; align-items: center; gap: 6px; }
.pills svg { width: 16px; height: 16px; color: var(--mint-on); }

/* Telefon çerçevesi */
.phones { position: relative; display: flex; justify-content: center; min-height: 520px; }
.phone {
  width: min(300px, 72vw); aspect-ratio: 603 / 1311;
  border-radius: 46px; padding: 10px; background: #0E0F16;
  box-shadow: var(--shadow-lg), inset 0 0 0 2px #2A2C38;
}
.phone img { width: 100%; height: 100%; object-fit: cover; border-radius: 37px; }
.phones .phone.back {
  position: absolute; transform: translateX(46%) rotate(7deg) scale(.88); opacity: .96;
  top: 30px; z-index: 0;
}
.phones .phone.front { position: relative; z-index: 1; transform: translateX(-12%) rotate(-3deg); }
.glow {
  position: absolute; inset: 10% 5% 0; z-index: 0;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--primary) 35%, transparent), transparent);
  filter: blur(30px);
}
@media (max-width: 520px) {
  .phones { min-height: 0; }
  .phones .phone.back { display: none; }
  .phones .phone.front { transform: none; }
}

/* ---------- Bölümler ---------- */
section { padding: 56px 0; }
@media (min-width: 900px) { section { padding: 88px 0; } }
.section-head { max-width: 640px; margin-bottom: 36px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
h2 { font-size: clamp(30px, 4.6vw, 44px); line-height: 1.1; letter-spacing: -.025em; margin: 0 0 14px; font-weight: 800; }
h3 { font-size: 20px; line-height: 1.25; margin: 0 0 8px; font-weight: 800; letter-spacing: -.01em; }
.muted { color: var(--text-2); }

/* Özellik kartları */
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--surface); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow);
}
.card p { margin: 0; color: var(--text-2); font-size: 16px; }
.icon {
  width: 48px; height: 48px; border-radius: 15px; display: grid; place-items: center;
  margin-bottom: 16px;
}
.icon svg { width: 24px; height: 24px; }
.t-primary { background: var(--primary-tint); color: var(--primary-on); }
.t-mint { background: var(--mint-tint); color: var(--mint-on); }
.t-peach { background: var(--peach-tint); color: var(--peach-on); }
.t-sun { background: var(--sun-tint); color: var(--sun-on); }
.t-sky { background: var(--sky-tint); color: var(--sky-on); }
.t-rose { background: var(--rose-tint); color: var(--rose-on); }

/* Ekran vitrinleri */
.show { display: grid; gap: 32px; align-items: center; }
.show + .show { margin-top: 72px; }
@media (min-width: 860px) {
  .show { grid-template-columns: 1fr 1fr; gap: 64px; }
  .show.flip .show-media { order: 2; }
}
.show-media { display: flex; justify-content: center; position: relative; }
.show-media .phone { width: min(290px, 70vw); }
.show-text h2 { font-size: clamp(28px, 4vw, 38px); }
.show-text p { color: var(--text-2); font-size: 18px; margin: 0 0 18px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; }
.checks li::before {
  content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%;
  background: var(--mint-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23067A66' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 14px no-repeat;
}

/* Gizlilik bandı */
.privacy-band {
  background: var(--hero-grad); color: #fff; border-radius: 32px;
  padding: 36px 24px; position: relative; overflow: hidden;
}
@media (min-width: 720px) { .privacy-band { padding: 56px; } }
.privacy-band h2 { color: #fff; }
.privacy-band .lead { color: rgba(255, 255, 255, .86); margin-bottom: 32px; }
.privacy-band .grid { position: relative; }
.privacy-band .item { background: rgba(255, 255, 255, .13); border-radius: 20px; padding: 20px; backdrop-filter: blur(6px); }
.privacy-band .item h3 { font-size: 17px; margin-bottom: 4px; color: #fff; }
.privacy-band .item p { margin: 0; color: rgba(255, 255, 255, .85); font-size: 15px; }
.privacy-band a { color: #fff; text-decoration: underline; text-underline-offset: 3px; font-weight: 800; }
.privacy-band::after {
  content: ""; position: absolute; width: 420px; height: 420px; right: -140px; top: -160px;
  border-radius: 50%; background: rgba(255, 255, 255, .08);
}

/* SSS */
.faq { display: grid; gap: 12px; max-width: 780px; margin: 0 auto; }
details {
  background: var(--surface); border-radius: 20px; box-shadow: var(--shadow);
  padding: 0 22px;
}
summary {
  cursor: pointer; list-style: none; padding: 20px 0; font-weight: 800; font-size: 17px;
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: ""; flex: none; width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236C5CE7' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 14px no-repeat;
  transition: transform .2s ease;
}
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0 0 20px; color: var(--text-2); }

/* ---------- Yasal sayfalar ---------- */
.doc { padding: 40px 0 72px; }
.doc .wrap { max-width: 780px; }
.doc-head { margin-bottom: 28px; }
.doc-head .icon { width: 56px; height: 56px; border-radius: 18px; }
.doc-head h1 { font-size: clamp(32px, 6vw, 46px); margin: 0 0 10px; }
.doc-head .meta { color: var(--text-3); font-weight: 700; font-size: 14px; }
.doc-head .summary { color: var(--text-2); font-size: 18px; margin: 12px 0 0; }
.doc-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.doc-tabs a {
  font-weight: 800; font-size: 14px; padding: 8px 14px; border-radius: 999px;
  background: var(--surface); color: var(--text-2); box-shadow: var(--shadow);
}
.doc-tabs a:hover { text-decoration: none; color: var(--text); }
.doc-tabs a[aria-current="page"] { background: var(--primary); color: #fff; }
.doc-body { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px 24px; }
@media (min-width: 720px) { .doc-body { padding: 12px 40px; } }
.doc-body section { padding: 22px 0; border-bottom: 1px solid var(--border); }
.doc-body section:last-child { border-bottom: 0; }
.doc-body h2 { font-size: 20px; margin: 0 0 8px; letter-spacing: -.01em; display: flex; gap: 10px; align-items: baseline; }
.doc-body h2 .n { color: var(--text-3); font-size: 15px; font-weight: 800; min-width: 1.5em; }
.doc-body p { margin: 0; color: var(--text-2); }
.note {
  margin-top: 20px; background: var(--primary-tint); color: var(--primary-on);
  border-radius: 18px; padding: 16px 18px; font-weight: 600; font-size: 15px;
}

/* ---------- Alt bilgi ---------- */
footer { padding: 40px 0 56px; border-top: 1px solid var(--border); margin-top: 24px; }
footer .wrap { display: grid; gap: 24px; }
@media (min-width: 760px) { footer .wrap { grid-template-columns: 1.4fr 1fr 1fr; } }
footer h4 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
footer a { color: var(--text-2); font-weight: 700; }
footer .fine { color: var(--text-3); font-size: 14px; margin: 10px 0 0; max-width: 30em; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

.note a { font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
.btn[aria-disabled="true"] { cursor: default; }
.btn[aria-disabled="true"]:hover { filter: none; }