:root[data-theme=dark]{--bg: #070a0e;--bg-raised: #0d1218;--bg-panel: #0f151c;--bg-hover: #16202b;--border: #1f2c3a;--border-strong: #2b3d50;--text: #e6edf5;--text-dim: #8b9bad;--text-faint: #5f7185;--accent: #4dabf7;--warn: #ff922b;--bad: #ff4d4f;--ok: #51cf66;--shadow: 0 8px 24px rgb(0 0 0 / 45%)}:root[data-theme=light]{--bg: #f4f7fa;--bg-raised: #ffffff;--bg-panel: #ffffff;--bg-hover: #e9eff5;--border: #d4dde7;--border-strong: #b3c1d0;--text: #16202b;--text-dim: #566472;--text-faint: #7d8b99;--accent: #1971c2;--warn: #e8590c;--bad: #d6336c;--ok: #2f9e44;--shadow: 0 6px 18px rgb(15 25 40 / 12%)}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);font:14px/1.6 ui-sans-serif,system-ui,Segoe UI,Malgun Gothic,sans-serif;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}.intro{display:flex;justify-content:center;min-height:100vh;min-height:100dvh;overflow-x:clip;background:radial-gradient(ellipse 48% 56% at 72% 38%,color-mix(in srgb,var(--accent) 9%,transparent),transparent 70%),var(--bg)}.intro-frame{display:flex;flex-direction:column;width:min(100%,88rem);min-height:100vh;min-height:100dvh;padding-inline:clamp(20px,4vw,40px)}.intro-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:22px 8px}.intro-mark{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:13px;font-weight:700;letter-spacing:.24em;color:var(--text)}.intro-lang{display:flex;align-items:center;gap:2px;border:1px solid var(--border);border-radius:999px;padding:2px;background:color-mix(in srgb,var(--bg-raised) 70%,transparent)}.intro-lang button{border:0;border-radius:999px;padding:4px 12px;background:transparent;color:var(--text-dim);font:inherit;font-size:12px;cursor:pointer}.intro-lang button[aria-pressed=true]{background:var(--bg-hover);color:var(--text)}.intro-lang button:hover:not([aria-pressed=true]){color:var(--text)}.intro-stage{flex:1 1 auto;display:grid;grid-template-columns:minmax(0,34rem) minmax(28rem,42rem);justify-content:start;align-items:center;column-gap:clamp(28px,3.5vw,40px);padding-block:clamp(28px,6vh,56px) 20px}.intro-hero{display:flex;flex-direction:column;justify-content:center;gap:20px;min-width:0}.intro-claim{margin:0;font-size:clamp(28px,3.4vw,44px);line-height:1.18;letter-spacing:-.02em;font-weight:650;text-wrap:balance}.intro-sub{margin:0;max-width:34rem;color:var(--text-dim);font-size:15px;text-wrap:pretty}.intro-globe{position:relative;width:min(42rem,68vh);aspect-ratio:1;justify-self:end;cursor:grab;touch-action:none;user-select:none;outline:none}.intro-globe:focus-visible{outline:2px solid color-mix(in srgb,var(--accent) 70%,transparent);outline-offset:4px}.intro-globe.is-dragging{cursor:grabbing}.intro-canvas{display:block;width:100%;height:100%;pointer-events:none}.intro-layer{position:absolute;left:50%;bottom:2px;display:inline-flex;align-items:center;gap:8px;margin:0;padding:5px 12px 5px 9px;border:1px solid color-mix(in srgb,var(--accent) 28%,var(--border));border-radius:999px;background:color-mix(in srgb,var(--bg-raised) 86%,transparent);box-shadow:var(--shadow);color:var(--text);font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:11px;letter-spacing:.04em;line-height:1;white-space:nowrap;transform:translate(-50%);pointer-events:none}.intro-layer-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}.intro-layer-kicker{color:var(--accent);font-size:9px;font-weight:700;letter-spacing:.16em}.intro-layer-index{color:var(--text-faint);font-variant-numeric:tabular-nums}.intro-layer-name{color:var(--text);letter-spacing:.02em}.intro-stats{display:flex;flex-wrap:wrap;gap:8px 10px;margin:0;padding:0;list-style:none;font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:12px;color:var(--text-dim)}.intro-stats[hidden]{display:none}.intro-stats li{border:1px solid var(--border);border-radius:999px;padding:3px 11px;background:color-mix(in srgb,var(--bg-raised) 60%,transparent)}.intro-stats li.is-critical{border-color:color-mix(in srgb,var(--bad) 45%,var(--border));color:var(--bad)}.intro-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.intro-enter{display:inline-flex;align-items:center;gap:8px;border-radius:8px;padding:12px 22px;font:inherit;font-weight:600;text-decoration:none;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}.intro-enter{border:1px solid var(--accent);background:var(--accent);color:#06121d;box-shadow:0 6px 22px color-mix(in srgb,var(--accent) 30%,transparent)}:root[data-theme=light] .intro-enter{color:#fff}.intro-enter:hover{transform:translateY(-1px);box-shadow:0 10px 28px color-mix(in srgb,var(--accent) 42%,transparent)}.intro-enter .intro-arrow{transition:transform .12s ease}.intro-enter:hover .intro-arrow{transform:translate(3px)}.intro-enter:focus-visible,.intro-lang button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.intro-note{margin:0;color:var(--text-faint);font-size:12px}.intro-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:20px 32px;margin:0}.intro-features section{border-block-start:1px solid var(--border);padding-block-start:14px}.intro-features h2{margin:0 0 6px;font-size:14px;font-weight:620}.intro-features p{margin:0;color:var(--text-dim);font-size:13px}.intro-foot{padding:28px 0 24px}.intro-caption{margin:0;color:var(--text-faint);font-size:11px}@media(width<900px){.intro{background:radial-gradient(ellipse 90% 40% at 50% 88%,color-mix(in srgb,var(--accent) 8%,transparent),transparent 70%),var(--bg)}.intro-stage{grid-template-columns:1fr;gap:20px;padding-block:20px 16px}.intro-layer{bottom:-2px;padding:4px 10px 4px 8px;font-size:10px}.intro-globe{width:min(18rem,72%);max-height:none;justify-self:center}.intro-features{gap:16px}}@media(prefers-reduced-motion:reduce){.intro-enter,.intro-enter .intro-arrow{transition:none}.intro-enter:hover{transform:none}}