:root{--orange: #f97316;--green: #22c55e;--red: #ef4444;--bg: #0f172a;--panel: #1e293b;--text: #f8fafc;--muted: #94a3b8}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:Sarabun,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}#root{display:flex;flex-direction:column;max-width:480px;margin:0 auto}.screen{flex:1;padding:24px;display:flex;flex-direction:column;gap:16px}.screen--center{align-items:center;justify-content:center;text-align:center}.brand{font-size:1.6rem;font-weight:700}.lead{color:var(--text);line-height:1.6}.hint{color:var(--muted);font-size:.85rem}.error{color:var(--red);background:#ef44441f;padding:12px 16px;border-radius:12px}.btn{border:none;border-radius:999px;padding:14px 24px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .05s ease,opacity .2s ease;color:#fff}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--orange)}.btn--danger{background:var(--red)}.btn--ghost{background:transparent;border:1px solid var(--muted);color:var(--muted)}.btn--sm{padding:6px 14px;font-size:.8rem}.stage{position:relative;flex:1;width:100%;overflow:hidden;background:#000;border:4px solid transparent;transition:border-color .15s ease}.stage--warning{border-color:var(--red)}.stage__video,.stage__canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.stage__video{object-fit:cover;transform:scaleX(-1)}.stage__canvas{pointer-events:none}.stage__hud{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;justify-content:space-between;pointer-events:none}.stage__hud .btn{pointer-events:auto}.hud__top{padding:16px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}.hud__bottom{padding:20px 16px calc(20px + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:center;gap:10px;background:linear-gradient(to top,rgba(0,0,0,.55),transparent)}.counter{background:#00000073;padding:8px 14px;border-radius:12px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.counter__label{font-size:.85rem;color:var(--muted)}.counter__value{font-size:2rem;font-weight:800;line-height:1.1}.pill{background:#00000080;padding:4px 12px;border-radius:999px;font-size:.8rem}.pill--error{background:#ef4444d9}.warning-banner{align-self:center;background:var(--red);color:#fff;padding:10px 18px;border-radius:999px;font-weight:700;margin-top:auto;margin-bottom:12px;animation:pulse 1s infinite}.debug{font-size:.7rem;color:var(--muted);font-family:ui-monospace,monospace}.result-card{background:var(--panel);border-radius:20px;padding:28px 32px;width:100%;max-width:320px}.result-card__count{font-size:4rem;font-weight:800;color:var(--orange);line-height:1}.result-card__label{color:var(--muted);margin-top:8px}.result-card__meta{color:var(--muted);font-size:.85rem;margin-top:6px}.history{width:100%;max-width:360px;text-align:left;margin-top:8px}.history__head{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:.9rem;margin-bottom:8px}.history__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.history__item{display:flex;justify-content:space-between;background:var(--panel);padding:10px 14px;border-radius:10px;font-size:.9rem}.history__count{font-weight:700;color:var(--orange)}.history__time{color:var(--muted)}.spinner{width:44px;height:44px;border:4px solid rgba(255,255,255,.2);border-top-color:var(--orange);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.install{position:fixed;left:50%;transform:translate(-50%);bottom:calc(12px + env(safe-area-inset-bottom));width:min(440px,calc(100% - 24px));background:var(--panel);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:14px 16px;z-index:5000;box-shadow:0 10px 30px #00000080;animation:install-in .3s ease}@keyframes install-in{0%{opacity:0;transform:translate(-50%,16px)}}.install__close{position:absolute;top:6px;right:10px;background:none;border:none;color:var(--muted);font-size:1.4rem;line-height:1;cursor:pointer}.install__row{display:flex;align-items:center;gap:12px}.install__icon{font-size:1.6rem}.install__body{display:flex;flex-direction:column;flex:1;min-width:0}.install__body b{font-size:.95rem}.install__body span{color:var(--muted);font-size:.8rem}.install__steps{margin:10px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:.85rem;line-height:1.5}.install__share{display:inline-flex;vertical-align:middle;color:#3b82f6;margin:0 2px}.rotate-lock{display:none}@media (orientation: landscape) and (max-width: 1024px){.rotate-lock{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--text);text-align:center;padding:24px}#root{display:none}}.rotate-lock__inner{display:flex;flex-direction:column;align-items:center;gap:16px}.rotate-lock__icon{font-size:3rem;animation:rotate-hint 1.8s ease-in-out infinite}.rotate-lock__text{font-size:1.1rem;line-height:1.6}.rotate-lock__text span{color:var(--muted);font-size:.9rem}@keyframes rotate-hint{0%,to{transform:rotate(0)}50%{transform:rotate(-90deg)}}@keyframes pulse{50%{opacity:.6}}