:root {
  --ink: #f7fbff;
  --muted: #a9bdd0;
  --bg: #04101e;
  --surface: #0a1d31;
  --surface-2: #102a43;
  --line: rgba(148, 190, 221, .2);
  --cyan: #29d7ff;
  --blue: #5b7cff;
  --violet: #8b5cf6;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: radial-gradient(circle at 85% 0, rgba(91,124,255,.16), transparent 34rem), var(--bg); font: 16px/1.7 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--cyan); }
a:hover { color: #8deaff; }
img { max-width: 100%; }
.site-header { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--line); background: rgba(4,16,30,.9); backdrop-filter: blur(16px); }
.nav { width: min(var(--max), calc(100% - 32px)); min-height: 72px; margin: auto; display: flex; align-items: center; gap: 24px; }
.brand { color: var(--ink); font-size: 1.08rem; font-weight: 850; letter-spacing: .12em; text-decoration: none; white-space: nowrap; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-weight: 650; text-decoration: none; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--ink); }
.language-link { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; }
.page { width: min(var(--max), calc(100% - 32px)); margin: auto; padding: 72px 0 88px; }
.breadcrumbs { color: var(--muted); font-size: .93rem; margin-bottom: 22px; }
.breadcrumbs a { color: var(--muted); }
.hero { padding: 36px; border: 1px solid var(--line); border-radius: 28px; background: linear-gradient(135deg, rgba(16,42,67,.94), rgba(8,25,43,.94)); box-shadow: 0 28px 70px rgba(0,0,0,.22); }
.hero-grid { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; }
.eyebrow { margin: 0 0 8px; color: var(--cyan); font-weight: 800; letter-spacing: .11em; text-transform: uppercase; font-size: .78rem; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -.02em; }
h1 { max-width: 850px; margin: 0; font-size: clamp(2.35rem, 6vw, 4.65rem); }
h2 { margin: 0 0 18px; font-size: clamp(1.65rem, 3vw, 2.35rem); }
h3 { margin: 0 0 8px; font-size: 1.16rem; }
.lead { max-width: 780px; margin: 20px 0 0; color: #d2e2ef; font-size: 1.12rem; }
.app-icon { width: 144px; height: 144px; object-fit: cover; border-radius: 32px; border: 1px solid var(--line); box-shadow: 0 20px 48px rgba(0,0,0,.35); }
.badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.badge { padding: 7px 12px; border-radius: 999px; background: rgba(41,215,255,.1); border: 1px solid rgba(41,215,255,.25); color: #bfefff; font-size: .9rem; font-weight: 700; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border-radius: 12px; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #03101d; font-weight: 850; text-decoration: none; }
.button.secondary, .button.button-ghost { color: var(--ink); background: transparent; border: 1px solid var(--line); }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 34px; margin-top: 50px; align-items: start; }
.content section { padding: 34px 0; border-bottom: 1px solid var(--line); }
.content section:first-child { padding-top: 0; }
.content p { color: #ccdae6; }
.content li { margin: 9px 0; color: #ccdae6; }
.toc { position: sticky; top: 96px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(10,29,49,.72); }
.toc strong { display: block; margin-bottom: 10px; }
.toc a { display: block; padding: 6px 0; color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.app-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.app-card { display: flex; min-width: 0; flex-direction: column; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(150deg, rgba(16,42,67,.9), rgba(8,25,43,.9)); transition: transform .2s ease, border-color .2s ease; }
.app-card:hover { transform: translateY(-4px); border-color: rgba(41,215,255,.45); }
.app-card .app-icon { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 17px; color: #04101e; font-weight: 900; overflow: hidden; }
.app-card .app-icon img { width: 100%; height: 100%; object-fit: cover; }
.app-icon--cyan { background: linear-gradient(135deg, #9bf1ff, #36c9e8); }
.app-icon--blue { background: linear-gradient(135deg, #aacbff, #5c8dff); }
.app-icon--violet { background: linear-gradient(135deg, #d4b7ff, #9d6eff); }
.app-icon--image { background: var(--surface-2); }
.category { display: inline-block; margin-bottom: 7px; color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.app-card h3 { margin: 0; font-size: 1.3rem; }
.app-card p { margin: 8px 0 0; color: var(--muted); }
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; }
.card-actions .button { min-height: 42px; padding: 8px 14px; }
.text-link { color: var(--cyan); font-weight: 750; text-decoration: none; }
.status-badge { display: inline-flex; align-items: center; margin: 0 8px 8px 0; padding: 4px 9px; border-radius: 999px; font-size: .72rem; font-weight: 850; letter-spacing: .04em; text-transform: uppercase; }
.status-badge--published { background: rgba(41,215,255,.12); color: #9befff; }
.status-badge--testing { background: rgba(245,158,11,.14); color: #fbc46d; }
.card-note, .empty-card { color: var(--muted); }
.empty-card { grid-column: 1/-1; margin: 0; padding: 22px; border: 1px dashed var(--line); border-radius: 16px; background: rgba(10,29,49,.55); }
.section-block { padding: 54px 0; border-bottom: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 24px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 520px; margin: 0; color: var(--muted); }
.tester-invite { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 20px; padding: 24px; border: 1px solid rgba(41,215,255,.28); border-radius: 20px; background: linear-gradient(135deg, rgba(41,215,255,.08), rgba(139,92,246,.1)); }
.tester-invite[hidden] { display: none; }
.tester-invite h3 { margin: 0; }
.tester-invite p:not(.eyebrow) { max-width: 700px; margin: 8px 0 0; color: var(--muted); }
.home-about { display: grid; grid-template-columns: .75fr 1.25fr; gap: 48px; align-items: start; }
.card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(10,29,49,.72); }
.card p { margin-bottom: 0; }
.step-list { padding: 0; list-style: none; counter-reset: steps; }
.step-list li { position: relative; min-height: 48px; padding: 8px 0 14px 58px; counter-increment: steps; }
.step-list li::before { content: counter(steps); position: absolute; left: 0; top: 5px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: #03101d; font-weight: 900; background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.faq details { padding: 17px 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq details p { margin-bottom: 0; }
.notice { padding: 18px 20px; border-left: 4px solid var(--cyan); border-radius: 10px; background: rgba(41,215,255,.08); color: #d8eaf6; }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner { width: min(var(--max), calc(100% - 32px)); margin: auto; padding: 30px 0; display: flex; gap: 18px; justify-content: space-between; flex-wrap: wrap; color: var(--muted); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.footer-link-button { padding: 0; border: 0; background: transparent; color: var(--muted); font: inherit; text-decoration: underline; cursor: pointer; }
@media (max-width: 800px) { .nav { align-items: flex-start; padding: 18px 0; } .nav-links { gap: 12px; justify-content: flex-end; } .hero { padding: 26px 22px; } .hero-grid, .layout, .home-about { grid-template-columns: 1fr; } .app-icon { width: 104px; height: 104px; } .toc { position: static; order: -1; } .grid, .grid.three, .app-grid { grid-template-columns: 1fr; } .section-heading, .tester-invite { align-items: flex-start; flex-direction: column; } }
@media (max-width: 540px) { .nav { display: block; } .nav-links { margin-top: 12px; justify-content: flex-start; } .page { padding-top: 38px; } h1 { font-size: 2.35rem; } }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 28px; }
.guide-card { display: flex; flex-direction: column; min-height: 100%; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(145deg, rgba(10,29,49,.9), rgba(16,42,67,.76)); }
.guide-card h2, .guide-card h3 { margin: 4px 0 10px; }
.guide-card p { color: var(--muted); }
.guide-card .text-link { margin-top: auto; font-weight: 800; }
.article-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; color: var(--muted); font-size: .92rem; }
.article-meta span + span::before { content: "•"; margin-right: 10px; }
.related-guides { margin-top: 42px; padding-top: 30px; border-top: 1px solid var(--line); }
.callout { margin: 24px 0; padding: 18px 20px; border-left: 4px solid var(--cyan); border-radius: 10px; background: rgba(41,215,255,.08); }
.content h3 { margin-top: 28px; }
.content ol li, .content ul li { margin-bottom: 8px; }
@media (max-width: 760px) { .guide-grid { grid-template-columns: 1fr; } .article-meta span { width: 100%; } .article-meta span + span::before { content: ""; margin: 0; } }