/* Bi-o — bi-o.com.tr. Colours follow the Bi-o 2.0 desktop app (app/styles/base.css). */
:root {
  --bg: #08071a;
  --bg-2: #0d0b24;
  --panel: rgba(22, 18, 52, .62);
  --panel-solid: #151233;
  --panel-2: rgba(255, 255, 255, .035);
  --line: rgba(199, 190, 255, .14);
  --line-strong: rgba(166, 136, 255, .38);
  --text: #f7f8fc;
  --muted: #aeb3cc;
  --soft: #8a8fb0;
  --accent: #7458ff;
  --accent-2: #a688ff;
  --accent-3: #c9b8ff;
  --accent-rgb: 116, 88, 255;
  --green: #4ad08d;
  --gold: #f3c45f;
  --radius: 18px;
  --radius-sm: 12px;
  --wrap: 1180px;
  --header-h: 68px;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, .7), 0 0 0 1px var(--line);
  --font: Inter, "Segoe UI Variable Text", "Segoe UI", ui-sans-serif, system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0; min-height: 100vh; background: var(--bg); color: var(--text);
  font: 16px/1.6 var(--font); font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  background-image: radial-gradient(1200px 600px at 85% -10%, rgba(var(--accent-rgb), .16), transparent 60%), radial-gradient(900px 500px at -10% 40%, rgba(166, 136, 255, .07), transparent 60%);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-3); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #fff; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }
.sprite { position: absolute; }
.ico { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 880px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip:focus { top: 12px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 46px; padding: 0 20px; border-radius: 14px; border: 1px solid transparent;
  font: 600 15px/1 var(--font); color: var(--text); text-decoration: none; cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  -webkit-tap-highlight-color: transparent; white-space: nowrap;
}
.btn:hover { color: #fff; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, #7c62ff, #5b45f0); box-shadow: 0 10px 30px -10px rgba(var(--accent-rgb), .8), inset 0 1px 0 rgba(255, 255, 255, .18); }
.btn-primary:hover { background: linear-gradient(135deg, #8a72ff, #6750ff); box-shadow: 0 14px 34px -10px rgba(var(--accent-rgb), .95), inset 0 1px 0 rgba(255, 255, 255, .22); }
.btn-ghost { background: rgba(255, 255, 255, .04); border-color: var(--line); }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); border-color: var(--line-strong); }
.btn-lg { min-height: 54px; padding: 0 26px; font-size: 16px; border-radius: 16px; }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 14px; border-radius: 12px; }
.btn-block { width: 100%; }
.btn .ico { width: 18px; height: 18px; }
.btn.is-disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; filter: grayscale(.4); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(8, 7, 26, .72); backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent; transition: border-color .2s ease, background .2s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(8, 7, 26, .88); }
.header-row { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 21px; letter-spacing: -.02em; }
.brand img { border-radius: 10px; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 15px; padding: 9px 12px; border-radius: 10px; transition: color .15s, background .15s; }
.site-nav a:not(.btn):hover, .site-nav a.active { color: var(--text); background: rgba(255, 255, 255, .05); }
.nav-cta { margin-left: 8px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, .04); color: var(--text); cursor: pointer; align-items: center; justify-content: center; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 72px 0 88px; overflow: hidden; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; -webkit-mask-image: linear-gradient(to bottom, #000 65%, transparent); mask-image: linear-gradient(to bottom, #000 65%, transparent); }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .55; }
.orb-1 { width: 520px; height: 520px; right: -120px; top: -140px; background: radial-gradient(circle, rgba(var(--accent-rgb), .7), transparent 70%); animation: drift 18s ease-in-out infinite alternate; }
.orb-2 { width: 420px; height: 420px; left: -160px; bottom: -180px; background: radial-gradient(circle, rgba(166, 136, 255, .45), transparent 70%); animation: drift 22s ease-in-out infinite alternate-reverse; }
.ring { position: absolute; width: 900px; height: 300px; right: -260px; top: 120px; border: 2px solid rgba(166, 136, 255, .16); border-radius: 50%; transform: rotate(-14deg); }
@keyframes drift { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(-40px, 30px, 0) scale(1.08); } }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: center; gap: 56px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-3); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
.hero .eyebrow { padding: 7px 14px; border-radius: 999px; background: rgba(var(--accent-rgb), .12); border: 1px solid rgba(var(--accent-rgb), .3); letter-spacing: .04em; text-transform: none; font-size: 14px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(74, 208, 141, .18); }
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); font-weight: 800; letter-spacing: -.035em; }
.grad { background: linear-gradient(100deg, #b9a6ff 0%, #8d72ff 45%, #e2d9ff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 22px; font-size: clamp(17px, 1.6vw, 19px); color: var(--muted); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-facts { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px 22px; color: var(--muted); font-size: 15px; }
.hero-facts li { display: inline-flex; align-items: center; gap: 8px; }
.hero-facts .ico { width: 18px; height: 18px; color: var(--green); stroke-width: 2.2; }
.hero-shot { margin: 0; position: relative; }
.hero-shot::before { content: ""; position: absolute; inset: 8% 6% -6%; background: radial-gradient(closest-side, rgba(var(--accent-rgb), .55), transparent); filter: blur(40px); z-index: -1; }
.window { border-radius: 16px; overflow: hidden; background: #0b0a1d; box-shadow: var(--shadow), 0 0 0 1px rgba(166, 136, 255, .25); transform: perspective(1600px) rotateY(-6deg) rotateX(2deg); transition: transform .5s ease; }
.hero-shot:hover .window { transform: perspective(1600px) rotateY(-2deg) rotateX(1deg); }
.window-bar { display: none; }
.hero-shot figcaption, .tab-pane figcaption { margin-top: 14px; font-size: 13px; color: var(--soft); text-align: center; }

/* ---------- sections ---------- */
.section { padding: 96px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, rgba(255, 255, 255, .018), rgba(255, 255, 255, .01)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; }
.section-lead { margin-top: 14px; color: var(--muted); font-size: 17px; }

/* ---------- features ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.feature, .support-card, .dl-card, .note, .release, .showcase {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.feature { padding: 26px; transition: border-color .2s ease, transform .2s ease, background .2s ease; }
.feature:hover { border-color: var(--line-strong); transform: translateY(-3px); background: rgba(30, 24, 70, .62); }
.feature h3 { font-size: 19px; margin: 18px 0 8px; }
.feature p { color: var(--muted); font-size: 15px; }
.feature-ico { width: 48px; height: 48px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; color: #fff; background: linear-gradient(135deg, rgba(var(--accent-rgb), .9), rgba(166, 136, 255, .55)); box-shadow: 0 10px 24px -10px rgba(var(--accent-rgb), .9), inset 0 1px 0 rgba(255, 255, 255, .25); }
.feature-ico .ico { width: 24px; height: 24px; }

.showcase { margin-top: 56px; padding: 18px; }
.tabs { display: flex; gap: 6px; padding: 6px; border-radius: 14px; background: rgba(0, 0, 0, .25); border: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs [role="tab"] { flex: 1 0 auto; min-height: 42px; padding: 0 16px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font: 600 14px/1 var(--font); cursor: pointer; white-space: nowrap; transition: background .15s, color .15s; }
.tabs [role="tab"]:hover { color: var(--text); }
.tabs [role="tab"][aria-selected="true"] { background: linear-gradient(135deg, rgba(var(--accent-rgb), .9), rgba(91, 69, 240, .9)); color: #fff; }
.tab-pane { margin: 18px 0 0; }
.tab-pane img { border-radius: 12px; border: 1px solid var(--line); width: 100%; background: #0b0a1d; }
.shot-note { display: flex; gap: 8px; align-items: center; justify-content: center; color: var(--soft); font-size: 13px; margin-top: 10px; }
.shot-note .ico { width: 16px; height: 16px; }

/* ---------- download ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 920px; margin: 0 auto; }
.dl-card { position: relative; padding: 30px; display: flex; flex-direction: column; }
.dl-recommended { border-color: rgba(var(--accent-rgb), .55); background: linear-gradient(180deg, rgba(var(--accent-rgb), .16), rgba(22, 18, 52, .62) 55%); box-shadow: 0 30px 70px -40px rgba(var(--accent-rgb), .9); }
.badge { position: absolute; top: 18px; right: 18px; padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; background: rgba(var(--accent-rgb), .25); color: var(--accent-3); border: 1px solid rgba(var(--accent-rgb), .45); }
.dl-head { display: flex; gap: 14px; align-items: center; }
.dl-ico { width: 52px; height: 52px; border-radius: 15px; display: inline-flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, .06); border: 1px solid var(--line); color: var(--accent-3); }
.dl-ico .ico { width: 26px; height: 26px; }
.dl-head h3 { font-size: 24px; }
.dl-head p { color: var(--muted); font-size: 14px; }
.dl-list { list-style: none; padding: 0; margin: 22px 0 26px; display: grid; gap: 10px; color: var(--muted); font-size: 15px; }
.dl-list li { display: flex; gap: 10px; align-items: flex-start; }
.dl-list .ico { width: 18px; height: 18px; margin-top: 3px; color: var(--accent-2); }
.dl-action { margin-top: auto; }
.dl-meta { margin-top: 12px; font-size: 13px; color: var(--soft); min-height: 20px; overflow-wrap: anywhere; }
.dl-meta code { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.dl-meta .state { display: inline-flex; align-items: center; gap: 6px; }
.dl-meta .state::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.dl-meta .state.ok::before { background: var(--green); }
.notice { max-width: 920px; margin: 18px auto 0; padding: 14px 18px; border-radius: var(--radius-sm); background: rgba(243, 196, 95, .08); border: 1px solid rgba(243, 196, 95, .3); color: #f5dfa8; font-size: 14px; }
.dl-notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 920px; margin: 28px auto 0; }
.note { padding: 24px; font-size: 15px; color: var(--muted); }
.note h3 { display: flex; align-items: center; gap: 10px; font-size: 17px; color: var(--text); margin-bottom: 10px; }
.note h3 .ico { color: var(--accent-2); }
.note ul { margin: 0; padding-left: 18px; display: grid; gap: 8px; }
.note em { color: var(--text); font-style: normal; font-weight: 600; }
pre { max-width: 100%; white-space: pre-wrap; overflow-wrap: anywhere; margin: 14px 0 0; padding: 12px 14px; border-radius: 10px; background: rgba(0, 0, 0, .35); border: 1px solid var(--line); overflow-x: auto; }
code { font-family: var(--mono); font-size: 13px; color: var(--accent-3); }

/* ---------- start steps ---------- */
.start-steps { list-style: none; padding: 0; margin: 0 auto 36px; max-width: 920px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; counter-reset: none; }
.start-steps li { display: flex; gap: 14px; align-items: center; padding: 16px 18px; border-radius: var(--radius-sm); background: var(--panel-2); border: 1px solid var(--line); }
.start-steps strong { display: block; font-size: 15px; }
.start-steps span:not(.step-no) { display: block; color: var(--muted); font-size: 14px; }
.step-no { flex: none; width: 34px; height: 34px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px; color: #fff; background: linear-gradient(135deg, rgba(var(--accent-rgb), .95), rgba(166, 136, 255, .6)); box-shadow: 0 8px 20px -8px rgba(var(--accent-rgb), .9); }

/* ---------- file check (download help) ---------- */
.verify { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
.verify summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 10px; cursor: pointer; color: var(--text); font-weight: 600; font-size: 14px; }
.verify summary::-webkit-details-marker { display: none; }
.verify p { margin-top: 10px; font-size: 14px; }
.hashes { margin: 12px 0 0; display: grid; gap: 8px; font-size: 13px; }
.hashes dt { color: var(--text); font-weight: 600; }
.hashes dd { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }

/* ---------- releases ---------- */
.releases { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.release { padding: 26px 28px; }
.release-latest { border-color: rgba(var(--accent-rgb), .45); }
.release-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.release-head h3, .release-head .h3 { font-size: 21px; font-weight: 700; letter-spacing: -.01em; }
.release-head time { color: var(--soft); font-size: 14px; }
.tag { padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; background: rgba(74, 208, 141, .14); color: #8be7b8; border: 1px solid rgba(74, 208, 141, .35); }
.tag-soon { background: rgba(var(--accent-rgb), .18); color: var(--accent-3); border-color: rgba(var(--accent-rgb), .45); margin-top: 14px; }
.tag-soon + h3 { margin-top: 10px; }
.release-sum { margin-top: 12px; color: var(--text); font-size: 16px; }
.release strong { color: var(--text); font-weight: 600; }
.release ul { margin: 14px 0 0; padding-left: 20px; display: grid; gap: 8px; color: var(--muted); font-size: 15px; }
.release-note { margin-top: 16px; padding: 12px 14px; border-radius: 10px; background: rgba(243, 196, 95, .08); border: 1px solid rgba(243, 196, 95, .28); color: #f5dfa8; font-size: 14px; }
.release details summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; }
.release details summary::-webkit-details-marker { display: none; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; transition: border-color .2s; }
.faq details[open] { border-color: var(--line-strong); }
.faq summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; cursor: pointer; font-weight: 600; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { padding: 0 22px 20px; color: var(--muted); font-size: 15px; }
.faq em { font-style: normal; font-weight: 600; color: var(--text); }
.chev { width: 18px; height: 18px; color: var(--soft); transition: transform .2s ease; flex: none; }
details[open] > summary .chev { transform: rotate(90deg); color: var(--accent-2); }

/* ---------- support ---------- */
.support-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 20px; max-width: 980px; margin: 0 auto; }
.support-card { padding: 30px; }
.support-card h3 { font-size: 19px; margin-bottom: 12px; }
.support-main { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; background: linear-gradient(160deg, rgba(var(--accent-rgb), .18), rgba(22, 18, 52, .62) 60%); border-color: rgba(var(--accent-rgb), .4); }
.support-main h3 { margin: 14px 0 0; }
.support-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.mail { font-size: 20px; font-weight: 700; color: var(--accent-3); overflow-wrap: anywhere; }
.steps { margin: 0 0 16px; padding-left: 20px; display: grid; gap: 8px; color: var(--muted); font-size: 15px; }

/* ---------- ad slots (Google AdSense) ----------
 * Hidden until a publisher id is set (meta[name="bio-adsense-client"]). Space is reserved
 * (min-height) so a loading ad does not push the page around. */
.ad-slot { margin: 0 auto; padding: 0; min-height: 110px; max-width: 970px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; }
.ad-slot[hidden] { display: none; }
.ad-slot::before { content: "Reklam"; align-self: flex-start; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--soft); margin-bottom: 6px; }
.ad-slot ins { display: block; width: 100%; min-height: 90px; }
.ad-slot.preview { border: 1px dashed var(--line-strong); border-radius: 14px; background: repeating-linear-gradient(135deg, rgba(var(--accent-rgb), .05) 0 12px, transparent 12px 24px); padding: 12px; }
.ad-slot.preview::after { content: "Reklam alanı önizlemesi (AdSense kapalı)"; color: var(--muted); font-size: 13px; }
main > .wrap:has(> .ad-slot:not([hidden])) { padding-top: 8px; padding-bottom: 8px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0 36px; background: rgba(0, 0, 0, .18); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 20px 40px; align-items: start; }
.footer-brand p { margin-top: 10px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.footer-nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.footer-nav a:hover { color: var(--text); }
.footer-copy { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid var(--line); }
.footer-copy a { color: var(--muted); }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 80; padding: 12px 18px; border-radius: 12px; background: var(--panel-solid); border: 1px solid var(--line-strong); box-shadow: var(--shadow); font-size: 14px; }

/* ---------- legal / simple pages ---------- */
.page { padding: 64px 0 96px; }
.page h1 { font-size: clamp(32px, 4.4vw, 46px); font-weight: 800; }
.page .updated { color: var(--soft); margin-top: 10px; font-size: 14px; }
.prose { margin-top: 36px; color: var(--muted); font-size: 16px; }
.prose h2 { color: var(--text); font-size: 22px; margin: 36px 0 12px; }
.prose p + p { margin-top: 12px; }
.prose ul { padding-left: 20px; display: grid; gap: 8px; margin: 12px 0 0; }
.prose strong { color: var(--text); }
.prose em { font-style: normal; font-weight: 600; color: var(--text); }
.center-page { min-height: calc(100vh - var(--header-h) - 140px); display: grid; place-items: center; text-align: center; padding: 80px 0; }
.center-page .big { font-size: clamp(72px, 14vw, 140px); font-weight: 800; line-height: 1; }
.center-page p { color: var(--muted); margin: 16px 0 28px; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .hero-copy { text-align: center; }
  .lead { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-facts { justify-content: center; }
  .window { transform: none; }
  .hero-shot:hover .window { transform: none; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .site-nav { position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 4px; padding: 14px 16px 20px; background: #0c0a20; border-bottom: 1px solid var(--line); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .8); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease, visibility .18s; max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
  .site-nav.open { transform: none; opacity: 1; visibility: visible; }
  .site-nav a:not(.btn) { padding: 14px 12px; font-size: 16px; }
  .nav-cta { margin: 8px 0 0; }
  .dl-grid, .dl-notes, .support-grid, .start-steps { grid-template-columns: minmax(0, 1fr); }
  .section { padding: 72px 0; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 44px 0 64px; }
  .hero-actions .btn { width: 100%; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .section-head { margin-bottom: 36px; }
  .showcase { padding: 10px; margin-top: 40px; }
  .dl-card, .support-card { padding: 24px 20px; }
  .release { padding: 22px 18px; }
  .faq summary { padding: 16px 18px; font-size: 15px; }
  .faq details p { padding: 0 18px 18px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .badge { top: 14px; right: 14px; }
}