:root{--bg: #0b0b10;--fg: #f5f5f7;--muted: #a0a0ab;--accent: #ff2d92;--panel: rgba(18, 18, 26, .72);--panel-solid: #14141c;--ring: rgba(255, 255, 255, .9);--safe-b: env(safe-area-inset-bottom, 0px);--safe-t: env(safe-area-inset-top, 0px)}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden;overscroll-behavior:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}body{touch-action:none}.stage{position:fixed;inset:0}.cam{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000}.draw{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.hud{position:absolute;inset:0;pointer-events:none;padding:calc(var(--safe-t) + 12px) 12px calc(var(--safe-b) + 16px)}.hud>*{pointer-events:auto}.legend-toggle{position:absolute;top:calc(var(--safe-t) + 12px);left:12px;width:40px;height:40px;border-radius:50%;border:none;background:var(--panel);color:var(--fg);font-size:20px;font-weight:700;backdrop-filter:blur(8px)}.legend{position:absolute;top:calc(var(--safe-t) + 60px);left:12px;max-width:78vw;background:var(--panel);backdrop-filter:blur(10px);border-radius:14px;padding:12px 16px;font-size:14px;line-height:1.5}.legend h2{margin:0 0 6px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.legend ul{margin:0;padding-left:16px}.hand-hint{position:absolute;top:42%;left:50%;transform:translate(-50%);background:var(--panel);backdrop-filter:blur(8px);padding:10px 16px;border-radius:999px;font-size:15px;animation:pulse 1.6s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.65}50%{opacity:1}}.toolbar{position:absolute;right:12px;bottom:calc(var(--safe-b) + 84px);display:flex;flex-direction:column;gap:12px}.tool{width:52px;height:52px;border-radius:50%;border:none;background:var(--panel);backdrop-filter:blur(8px);color:var(--fg);font-size:22px;display:grid;place-items:center;transition:transform .12s ease}.tool:active{transform:scale(.92)}.tool.capture{width:68px;height:68px;background:#fff;color:#ff2d92;font-size:30px;box-shadow:0 0 0 4px #ffffff40}.tool.capture.recording{background:var(--accent);color:#fff;animation:rec 1s ease-in-out infinite}@keyframes rec{0%,to{box-shadow:0 0 0 4px #ff2d9240}50%{box-shadow:0 0 0 10px #ff2d921f}}.palette{position:absolute;bottom:calc(var(--safe-b) + 16px);left:50%;transform:translate(-50%);display:flex;gap:14px;padding:10px 14px;background:var(--panel);backdrop-filter:blur(10px);border-radius:999px}.swatch{width:30px;height:30px;border-radius:50%;border:2px solid transparent;outline:none;padding:0;transition:transform .12s ease}.swatch[aria-checked=true]{border-color:var(--ring);transform:scale(1.18)}.status{position:absolute;bottom:calc(var(--safe-b) + 64px);left:50%;transform:translate(-50%);font-size:12px;color:var(--muted);text-shadow:0 1px 2px rgba(0,0,0,.6);pointer-events:none}.screen-root{position:fixed;inset:0;display:none;place-items:center;padding:24px;background:radial-gradient(120% 100% at 50% 0%,#1a1226 0%,var(--bg) 60%);z-index:10}.screen-root.active{display:grid}.card{width:min(440px,92vw);text-align:center}.card h1{font-size:32px;margin:0 0 6px;background:linear-gradient(90deg,#ff2d92,#ffd60a,#0a84ff);-webkit-background-clip:text;background-clip:text;color:transparent}.card p{color:var(--muted);line-height:1.5;margin:8px 0 20px}.legend-card{text-align:left;background:var(--panel);border-radius:14px;padding:12px 18px;margin:0 0 22px;font-size:14px;line-height:1.7}.legend-card b{color:var(--fg)}.btn-primary{appearance:none;border:none;width:100%;padding:16px;font-size:17px;font-weight:700;color:#fff;border-radius:14px;background:linear-gradient(90deg,#ff2d92,#ff6b3d)}.btn-ghost{appearance:none;border:1px solid rgba(255,255,255,.2);background:transparent;color:var(--fg);width:100%;padding:14px;font-size:15px;border-radius:14px;margin-top:10px}.card.results{width:min(640px,96vw)}.results-scroll{max-height:62vh;overflow-y:auto;-webkit-overflow-scrolling:touch;margin:8px 0 18px;display:flex;flex-direction:column;gap:16px}.result-row{background:var(--panel);border-radius:14px;padding:12px}.result-word{font-weight:700;margin-bottom:8px}.result-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}.result-pair figure{margin:0}.result-pair img{width:100%;height:auto;border-radius:10px;background:#0b0b10;display:block}.result-pair figcaption{text-align:center;font-size:13px;font-weight:700;margin-top:4px}.spinner{width:44px;height:44px;border-radius:50%;border:3px solid rgba(255,255,255,.18);border-top-color:var(--accent);margin:0 auto 18px;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress{height:6px;border-radius:999px;background:#ffffff1f;overflow:hidden;margin-top:14px}.progress>i{display:block;height:100%;width:0%;background:linear-gradient(90deg,#ff2d92,#ffd60a);transition:width .25s ease}