:root{--amber:#ffb347;--blue:#7fb6d9;--ink:#e9edf2;--dim:#8a94a3;--bg:#06080c}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);overflow:hidden;
font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
canvas{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:crosshair}
.top{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;
padding:calc(14px + env(safe-area-inset-top)) 18px 0;pointer-events:none}
.title{display:flex;flex-direction:column;gap:3px}
.t1{font-size:15px;font-weight:600;letter-spacing:.14em;text-transform:uppercase}
.t2{font-size:11px;color:var(--dim);letter-spacing:.08em}
.btns{display:flex;gap:8px;pointer-events:auto}
button{font:inherit;font-size:12px;letter-spacing:.06em;color:var(--ink);background:rgba(14,18,26,.6);
border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:7px 13px;cursor:pointer;
-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
button:hover{border-color:rgba(255,179,71,.5)}
button[aria-pressed="true"]{color:var(--amber);border-color:rgba(255,179,71,.5)}
.bar{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom));
display:flex;align-items:center;gap:12px;width:min(560px,calc(100% - 28px));padding:8px 14px 8px 8px;
background:rgba(10,13,19,.62);border:1px solid rgba(255,255,255,.08);border-radius:999px;
-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.bar button{width:32px;height:32px;padding:0;font-size:10px}
.clock{font-variant-numeric:tabular-nums;font-size:15px;color:var(--amber);min-width:44px}
.end{font-size:11px;color:var(--dim);font-variant-numeric:tabular-nums}
input[type=range]{flex:1;-webkit-appearance:none;appearance:none;height:2px;background:linear-gradient(90deg,#2a3a55,#ffb34766);border-radius:2px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--ink);box-shadow:0 0 12px var(--amber);cursor:pointer}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border:0;border-radius:50%;background:var(--ink);box-shadow:0 0 12px var(--amber)}
.hint{position:fixed;left:0;right:0;bottom:calc(70px + env(safe-area-inset-bottom));text-align:center;margin:0;
font-size:12px;color:var(--dim);letter-spacing:.04em;transition:opacity 1.5s;pointer-events:none}
.hint.gone{opacity:0}
.about{position:fixed;inset:0;display:grid;place-items:center;background:rgba(3,5,8,.6);padding:20px}
.about[hidden]{display:none}
.card{max-width:420px;background:rgba(12,15,22,.92);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:24px 24px 20px}
.card h1{margin:0 0 12px;font-size:14px;letter-spacing:.16em;text-transform:uppercase;font-weight:600}
.card p{margin:0 0 10px;font-size:14px;line-height:1.55;color:#cdd4de}
.card ul{margin:6px 0 12px;padding-left:18px;font-size:13px;line-height:1.6;color:var(--dim)}
.card .small{font-size:12px;color:var(--dim)}
@media (max-width:520px){.t2{display:none}.hint{font-size:11px}}