:root{--bg: #090d16;--bg-soft: #111827;--text: #f7fbff;--muted: #8ca3c4;--primary: #35a8ff;--primary-glow: rgba(53, 168, 255, .5);--danger: #ff2e2e}:root[data-theme=nebula]{--bg: #130a1a;--bg-soft: #1e1029;--text: #fff5ff;--muted: #c6a5dd;--primary: #7b7dff;--primary-glow: rgba(123, 125, 255, .45);--danger: #ff4a72}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(circle at top,#162137 0%,var(--bg) 48%)}#root{min-height:100vh}.app{min-height:100vh;display:flex;flex-direction:column;padding:20px}.top-row{width:min(760px,100%);margin:0 auto 20px;display:flex;justify-content:flex-end}.panel{width:min(760px,100%);margin:auto;padding:24px;border-radius:20px;border:1px solid rgba(255,255,255,.1);background:linear-gradient(160deg,#ffffff0a,#ffffff03);box-shadow:0 0 56px #0006}.display-wrap{min-height:200px;display:grid;place-items:center}.time-text{font-family:DIN Alternate,DIN Condensed,Bahnschrift,Roboto Condensed,monospace;font-size:clamp(76px,20vw,150px);letter-spacing:.08em;text-shadow:0 0 24px var(--primary-glow);transition:color .12s linear,opacity .2s ease}.time-text.paused{opacity:.52}.preset-row,.control-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.preset-row{margin:6px 0 14px;touch-action:pan-y}button{border:none;border-radius:12px;padding:12px 14px;color:var(--text);font-size:16px;cursor:pointer;background:#ffffff0f;transition:transform .15s ease,box-shadow .2s ease,background .2s ease}button:hover{transform:translateY(-1px);box-shadow:0 0 18px var(--primary-glow)}button:active{transform:translateY(0)}.primary-btn{background:linear-gradient(180deg,var(--primary),#1376c5);color:#fff}.soft-btn,.ghost-btn{background:#ffffff14}.preset-btn.active{background:#35a8ff33;box-shadow:0 0 16px var(--primary-glow)}.hint{margin:14px 4px 0;color:var(--muted);text-align:center;font-size:13px}.finish-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#ffffff1a;animation:finish-flash .22s linear 3}.finish-card{width:min(320px,86vw);border-radius:16px;text-align:center;padding:20px;background:var(--bg-soft);border:1px solid rgba(255,255,255,.2);box-shadow:0 0 28px #0006}@keyframes finish-flash{0%{background:#fff0}50%{background:#ffffffd9}to{background:#fff0}}@media (max-width: 560px){.panel{padding:18px}button{font-size:15px;padding:11px 12px}}