:root{--bg: #06111f;--bg-soft: #12233a;--panel: rgba(248, 250, 252, .09);--panel-strong: rgba(248, 250, 252, .16);--text: #f8fafc;--muted: #bdd0df;--accent: #44d7b6;--accent-2: #f4c95d;--accent-3: #ff6b8a;--shadow: rgba(0, 0, 0, .28)}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;background:radial-gradient(circle at 15% 20%,rgba(68,215,182,.28),transparent 28rem),radial-gradient(circle at 80% 10%,rgba(244,201,93,.18),transparent 24rem),radial-gradient(circle at 70% 85%,rgba(255,107,138,.18),transparent 26rem),linear-gradient(135deg,var(--bg),var(--bg-soft));overflow-x:hidden}body[data-theme=sunset]{--bg: #1a1324;--bg-soft: #3c2334;--accent: #ff9f43;--accent-2: #5eead4;--accent-3: #f472b6}body[data-theme=mono]{--bg: #06080d;--bg-soft: #151a22;--accent: #e5e7eb;--accent-2: #93c5fd;--accent-3: #c4b5fd}#sky{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}.shell{position:relative;z-index:1;display:grid;min-height:100vh;grid-template-columns:minmax(0,1fr) 360px;gap:24px;align-items:center;width:min(1180px,calc(100% - 32px));margin:0 auto;padding:32px 0}.countdown-panel,.control-panel{border:1px solid rgba(255,255,255,.16);background:var(--panel);box-shadow:0 24px 80px var(--shadow);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.countdown-panel{min-height:min(680px,calc(100vh - 64px));border-radius:8px;padding:clamp(24px,5vw,56px)}.topbar{display:flex;gap:20px;align-items:flex-start;justify-content:space-between}.eyebrow{margin:0 0 10px;color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:0}h1{max-width:12em;margin:0;font-size:clamp(2.4rem,7vw,6.5rem);line-height:.96;letter-spacing:0;overflow-wrap:anywhere}.theme-switch,.preset-row,.action-row{display:flex;gap:8px}.theme-button,button{min-height:44px;border:1px solid rgba(255,255,255,.18);border-radius:8px;color:var(--text);background:#ffffff1a;font:inherit;cursor:pointer;transition:transform .16s ease,background .16s ease,border-color .16s ease}button:hover{transform:translateY(-1px);background:#ffffff29}.theme-button{width:44px;padding:0;font-size:1.2rem}.theme-button.active,.primary{color:#041014;border-color:transparent;background:var(--accent)}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:clamp(20px,4vw,44px);align-items:end;margin-top:clamp(42px,8vw,92px)}.timer{display:grid;grid-template-columns:repeat(4,minmax(92px,1fr));gap:12px}.time-card{display:grid;min-height:148px;align-content:center;gap:10px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:linear-gradient(180deg,#ffffff29,#ffffff12);text-align:center}.time-card strong{font-size:clamp(2.3rem,6vw,5.1rem);line-height:1;letter-spacing:0;font-variant-numeric:tabular-nums}.time-card span{color:var(--muted);font-size:.95rem}.progress-wrap{position:relative;width:220px;aspect-ratio:1;justify-self:center}.progress-ring{width:100%;height:100%;transform:rotate(-90deg)}.ring-track,.ring-fill{fill:none;stroke-width:10}.ring-track{stroke:#ffffff1f}.ring-fill{stroke:var(--accent-2);stroke-linecap:round;stroke-dasharray:327;stroke-dashoffset:327;transition:stroke-dashoffset .3s ease}.progress-center{position:absolute;inset:0;display:grid;place-content:center;gap:6px;text-align:center}.progress-center strong{font-size:2.1rem;font-variant-numeric:tabular-nums}.progress-center span,.target-text{color:var(--muted)}.target-text{margin:clamp(24px,4vw,44px) 0 0;font-size:1rem}.control-panel{border-radius:8px;padding:20px}label{display:grid;gap:8px;margin-bottom:16px;color:var(--muted);font-size:.92rem}input{width:100%;min-height:46px;border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:0 12px;color:var(--text);background:#0410146b;font:inherit}input:focus,button:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}.preset-row{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:12px}.preset-row button,.action-row button{padding:0 12px}.action-row{display:grid;grid-template-columns:1fr 1fr}.locked-panel{display:grid;gap:14px}.locked-label{margin:0;color:var(--muted);font-size:.92rem}.locked-time{margin:0;color:var(--text);font-size:1.25rem;font-weight:800;line-height:1.35}.locked-note{margin:0;color:var(--muted);font-size:.92rem;line-height:1.6}.floating-motto{position:fixed;z-index:3;left:0;top:0;min-width:96px;padding:10px 14px;border:1px solid rgba(255,255,255,.24);border-radius:8px;color:#041014;background:linear-gradient(135deg,#f4c95d,#44d7b6);box-shadow:0 16px 36px #0000003d;font-size:1rem;font-weight:900;line-height:1;text-align:center;white-space:nowrap;pointer-events:none;will-change:transform}@media(max-width:900px){.shell{grid-template-columns:1fr;align-items:start}.countdown-panel{min-height:auto}.hero-grid{grid-template-columns:1fr}.progress-wrap{width:min(220px,62vw)}}@media(max-width:620px){.shell{width:min(100% - 20px,480px);padding:10px 0 24px}.countdown-panel,.control-panel{padding:16px}.topbar{align-items:center}h1{font-size:clamp(2rem,14vw,4.2rem)}.timer{grid-template-columns:repeat(2,minmax(0,1fr))}.time-card{min-height:112px}.floating-motto{min-width:84px;padding:9px 12px;font-size:.9rem}}