:root{--bg:#0c1116;--fg:#e6edf3;--muted:#9fb1c3;--accent:#4db2ff;--border:#17202a;--card:#0f151b;--ov-font:18px}
*{box-sizing:border-box}html,body{height:100%}body{min-height:100svh;margin:0;font-family:-apple-system,system-ui,Inter,Roboto,"SF Pro Text","Segoe UI",sans-serif;background:var(--bg);color:var(--fg)}
.container{max-width:920px;margin:0 auto;padding:14px env(safe-area-inset-right) calc(14px + env(safe-area-inset-bottom)) env(safe-area-inset-left)}
.card{background:var(--card);border:1px solid var(--border);border-radius:22px;box-shadow:0 20px 40px rgba(0,0,0,.35);padding:14px}
h1{font-size:22px;margin:0 0 12px}
.row{display:flex;gap:10px;flex-wrap:wrap}
button{font-weight:800;border:0;border-radius:14px;padding:14px 16px;font-size:16px;cursor:pointer;transition:transform .06s ease}
button.big{padding:16px 18px;font-size:18px}
button:active{transform:scale(.98)}
button.primary{background:linear-gradient(180deg,#5dc0ff,#2da0f0);color:#001b2e}
button.ghost{background:transparent;border:1px solid var(--border);color:var(--fg)}
button:disabled{opacity:.45;cursor:not-allowed}
.videoWrap{margin-top:10px;position:relative;background:#000;border-radius:18px;overflow:hidden;aspect-ratio:3/4}
video{width:100%;height:100%;object-fit:cover;display:block}
.overlay-res{position:absolute;left:12px;right:12px;background:rgba(0,0,0,.55);color:#fff;padding:10px 12px;border-radius:14px;font-weight:800;line-height:1.25;font-size:var(--ov-font);max-width:calc(100% - 24px)}
.overlay-res.bottom{bottom:calc(110px + env(safe-area-inset-bottom))}
.overlay-res.top{top:12px}
.shutter{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);z-index:6;background:#fff;color:#000;border-radius:999px;border:4px solid rgba(255,255,255,.5);width:88px;height:88px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:24px;opacity:.95}
.shutter[disabled]{opacity:.4}
.help{position:absolute;left:0;right:0;bottom:110px;text-align:center;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.6);font-weight:700}
.flash{position:absolute;inset:0;background:#fff;opacity:0;pointer-events:none}
.flash.show{animation:flash .25s ease}
#startOverlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,rgba(0,0,0,.4),rgba(0,0,0,.5));z-index:7}
#startBtn{font-size:20px;padding:18px 22px;border-radius:16px;border:0;background:linear-gradient(180deg,#5dc0ff,#2da0f0);color:#001b2e;font-weight:900}
.notice{margin-top:8px;color:#ffb3b3}
.hidden{display:none}