/* io page tanıtım sayfası. Düzen: sade ürün sayfası (ilk ekran + dönüşümlü özellik bölümleri + SSS + çağrı bandı).
   Marka: IONOR tasarım sistemi (Onest, mürekkep rengi birincil düğme, köz yalnız nokta); zemin beyaz (kullanıcı kararı). */
@font-face { font-family: Onest; src: url("onest-latin.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: Onest; src: url("onest-latin-ext.woff2") format("woff2"); font-weight: 100 900; font-display: swap;
  unicode-range: U+0100-02FF, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --bg: #ffffff; --sunk: #f5f5f3; --line: #e6e4df;
  --ink: #16181c; --ink-2: #4a4e57; --ink-3: #62666f;
  --action: #16181c; --action-hover: #33363d; --on-action: #ffffff;
  --koz: #ff5b24; --koz-text: #c43d0e; --page: #1e7b45;
  --dev-text: #7a4d00; --dev-dot: #c98a12;
  --shadow: 0 1px 2px rgba(22,24,28,.06), 0 18px 40px -12px rgba(22,24,28,.18);
  --radius: 20px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 Onest, system-ui, -apple-system, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--koz-text); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: 1200px; margin-inline: auto; padding-inline: 24px; }
.skip { position: fixed; top: -100px; left: 16px; z-index: 30; background: #fff; padding: 12px 16px; border-radius: 8px; box-shadow: var(--shadow); }
.skip:focus { top: 12px; }

/* Üst bar */
.top { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); backdrop-filter: saturate(1.4) blur(12px); transition: box-shadow .2s; }
.top.scrolled { box-shadow: 0 1px 0 rgba(22,24,28,.08); }
.bar { height: 72px; display: flex; align-items: center; gap: 40px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.pn { font-size: 22px; font-weight: 650; letter-spacing: -.4px; }
.pn .io { font-weight: 400; color: var(--ink-3); }
.links { display: flex; gap: 28px; font-size: 14px; }
.links a { text-decoration: none; color: var(--ink-2); padding-block: 12px; }
.links a:hover { color: var(--ink); }
.right { margin-left: auto; display: flex; align-items: center; gap: 20px; }
.signin { font-size: 14px; font-weight: 550; text-decoration: none; padding-block: 12px; }
.signin:hover { text-decoration: underline; }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 24px; border-radius: 999px;
  background: var(--action); color: var(--on-action); font-weight: 600; font-size: 15px; text-decoration: none; transition: background .15s; }
.btn:hover { background: var(--action-hover); }
.btn-s { min-height: 40px; padding: 8px 18px; font-size: 14px; }

/* İlk ekran */
.hero { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 64px; padding-block: 72px 120px; }
h1 { font-size: 56px; line-height: 1.08; letter-spacing: -.035em; font-weight: 600; margin: 0 0 24px; }
.copy .lead { font-size: 18px; color: var(--ink-2); max-width: 34em; margin: 0 0 32px; }
.copy .note { margin: 20px 0 0; font-size: 13px; color: var(--ink-3); }

.art { position: relative; margin: 0; }
.shot { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.shot img { width: 100%; }
.chip { position: absolute; display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 14px; font-size: 13px; font-weight: 550; box-shadow: var(--shadow); white-space: nowrap; }
.chip .ic { font-size: 16px; color: var(--page); line-height: 1; }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--koz); }
.chip-a { top: -18px; right: 28px; }
.chip-b { bottom: -18px; left: -20px; }

/* Özellik bölümleri */
.feat { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 96px; padding-block: 72px; }
.feat.rev { grid-template-columns: .9fr 1.1fr; }
h2 { font-size: 36px; line-height: 1.18; letter-spacing: -.025em; font-weight: 550; margin: 0 0 20px; }
.copy p { color: var(--ink-2); font-size: 16px; margin: 0 0 16px; max-width: 34em; }
.copy p.fine { font-size: 14px; color: var(--ink-3); }
.copy a:not(.btn) { color: var(--ink); text-underline-offset: 3px; }
.copy b { color: var(--ink); font-weight: 600; }
.nb { white-space: nowrap; }
.status { display: inline-flex; align-items: center; gap: 8px; font-size: 13px !important; color: var(--dev-text) !important; font-weight: 550; margin-bottom: 12px !important; }
.sdot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--dev-dot); background: linear-gradient(90deg, transparent 50%, var(--dev-dot) 50%) ; transform: rotate(-90deg); }

/* SSS */
.faq { padding-block: 96px 80px; max-width: 880px; }
.faq h2 { text-align: center; margin-bottom: 32px; }
.faq-tools { display: flex; justify-content: flex-end; margin-bottom: 8px; }
.expand { background: none; border: 0; font: inherit; font-size: 14px; font-weight: 550; color: var(--ink); cursor: pointer; padding: 10px 4px; display: inline-flex; gap: 8px; align-items: center; }
.expand::after { content: "⌄"; font-size: 18px; line-height: 1; transform: translateY(-3px); }
.expand[aria-expanded="true"]::after { content: "⌃"; transform: translateY(3px); }
.expand:hover { text-decoration: underline; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 4px; font-size: 18px; font-weight: 500; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex-shrink: 0; width: 10px; height: 10px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: rotate(45deg) translate(-3px, -3px); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq details p { margin: 0 48px 24px 4px; color: var(--ink-2); }

/* Çağrı bandı */
.cta { background: var(--sunk); margin-inline: 24px; border-radius: 28px; text-align: center; padding-block: 88px; }
.cta h2 { font-size: 40px; max-width: 18em; margin: 0 auto 32px; }

/* Alt bilgi */
.foot { padding-block: 56px 32px; font-size: 14px; color: var(--ink-2); }
.foot-top { display: flex; align-items: center; gap: 24px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.foot-top p { margin: 0; color: var(--ink-3); }
.cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; padding-block: 32px; }
.cols h3 { font-size: 15px; font-weight: 600; color: var(--ink); margin: 0 0 12px; }
.cols a { display: block; text-decoration: none; padding-block: 5px; color: var(--ink-2); }
.cols a:hover { color: var(--ink); text-decoration: underline; }
.foot-bottom { display: flex; gap: 24px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-3); }
.spacer { flex: 1; }
.preview-env { position: fixed; right: 16px; bottom: 16px; margin: 0; z-index: 25; background: var(--ink); color: #fff; font-size: 12px; font-weight: 600; padding: 6px 12px; border-radius: 999px; }

@media (max-width: 1000px) {
  .links { display: none; }
  .hero, .feat, .feat.rev { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-block: 48px 80px; }
  .feat { padding-block: 48px; }
  .feat .art { order: 2; }
  .feat .art { max-width: 720px; }
  h1 { font-size: 46px; }
  h2 { font-size: 30px; }
  .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .wrap { padding-inline: 16px; }
  .bar { height: 64px; gap: 12px; }
  .pn { font-size: 19px; }
  .brand img { width: 28px; height: 28px; }
  .right { gap: 12px; }
  .btn-s { padding: 8px 14px; font-size: 13px; }
  .btn-s .long { display: none; }
  h1 { font-size: 38px; }
  .lead { font-size: 16px; }
  h2 { font-size: 26px; }
  .chip { font-size: 12px; padding: 6px 10px; }
  .chip-a { right: 12px; }
  .chip-b { left: 8px; }
  .faq { padding-block: 64px 48px; }
  .faq summary { font-size: 16px; }
  .faq details p { margin-right: 8px; }
  .cta { margin-inline: 0; border-radius: 0; padding-block: 64px; }
  .cta h2 { font-size: 28px; }
  .cols { grid-template-columns: 1fr; gap: 20px; }
  .cols a { padding-block: 10px; }
  .foot-top { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn, .top { transition: none; } }