:root{--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--line-height: 1.5;--font-weight: 400;--color-bg-start: #1a1a2e;--color-bg-end: #16213e;--color-primary: #e94560;--color-secondary: #0f3460;--color-text: #ffffff;--color-text-muted: rgba(255, 255, 255, .7);--glass-bg: rgba(255, 255, 255, .1);--glass-border: rgba(255, 255, 255, .2);--radius-md: 12px;--radius-lg: 20px}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;font-family:var(--font-family);background:linear-gradient(135deg,var(--color-bg-start) 0%,var(--color-bg-end) 100%);color:var(--color-text);overflow-y:auto;overflow-x:hidden}#root{width:100%;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}.container{width:100%;max-width:500px;display:flex;flex-direction:column;padding:40px 20px;box-sizing:border-box}h1,h2,h3{margin:0;font-weight:700}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--color-secondary);color:#fff;cursor:pointer;transition:border-color .25s,transform .1s}button:hover{filter:brightness(1.1)}button:active{transform:scale(.96)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:20px;box-shadow:0 8px 32px #1f26875e}.spin-button{display:flex;align-items:center;gap:10px;background:#0003;padding:5px 10px;border-radius:8px}.spin-input{width:80px;background:transparent;border:none;color:#fff;text-align:center;font-size:1.2rem;font-variant-numeric:tabular-nums;font-family:inherit;padding:0}.spin-input:focus{outline:none;background:#ffffff1a;border-radius:4px}.spin-input::-webkit-outer-spin-button,.spin-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.progress-container{position:relative;display:flex;justify-content:center;align-items:center;margin:30px 0}.progress-svg{transform:rotate(-90deg);max-width:100%;height:auto}.progress-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center}.timer-display{font-size:3.5rem;font-weight:700;font-variant-numeric:tabular-nums;line-height:1}@media (max-width: 400px){.timer-display{font-size:2.8rem}}.volume-control{display:flex;gap:8px;justify-content:center}.volume-btn{flex:1;padding:8px 0;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:6px;color:var(--color-text-muted);font-size:.9rem;font-weight:600;transition:all .2s ease;min-width:40px}.volume-btn:hover{background:#ffffff1a;border-color:#fff3;transform:translateY(-2px)}.volume-btn.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff;box-shadow:0 4px 12px #e945604d}.volume-btn:active{transform:scale(.95)}