:root{--primary: #00D4AA;--primary-dark: #00B894;--secondary: #0984E3;--warmup: #FDCB6E;--work: #00D4AA;--rest: #74B9FF;--cooldown: #A29BFE;--danger: #FF7675;--bg-light: #F8FAFC;--bg-dark: #E2E8F0;--text-main: #2D3748;--text-light: #718096;--white: #ffffff;--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(226, 232, 240, .6);--radius: 24px;--shadow: 0 4px 20px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Outfit,-apple-system,BlinkMacSystemFont,sans-serif;background:linear-gradient(135deg,#f0f9ff,#e0f2fe,#faf5ff);background-size:200% 200%;animation:gradientShift 15s ease infinite;color:var(--text-main);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.app-container{width:100%;max-width:100%;padding:15px;box-sizing:border-box}@media (min-width: 768px){.app-container{max-width:500px;padding:25px}}@media (min-width: 1024px){.app-container{max-width:600px;padding:30px}}header{text-align:center;margin-bottom:30px}.header-top{display:flex;flex-direction:column;align-items:center;gap:15px}.header-buttons{display:flex;gap:12px}@media (min-width: 768px){.header-top{flex-direction:row;justify-content:center;align-items:center;gap:20px}.header-buttons{position:absolute;right:0;top:0}}.audio-toggle{background:#fffc;border:2px solid var(--glass-border);border-radius:50%;width:40px;height:40px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;color:var(--text-main);flex-shrink:0}.audio-toggle:hover{background:var(--white);border-color:var(--primary);color:var(--primary)}@media (min-width: 768px){.audio-toggle{width:45px;height:45px}}#audio-toggle.active{background:var(--primary);color:var(--white);border-color:var(--primary)}.logo{height:140px;object-fit:contain;filter:drop-shadow(0 2px 8px rgba(0,212,170,.3));max-width:100%}@media (min-width: 768px){.logo{height:180px}}@media (min-width: 1024px){.logo{height:220px}}.view{display:none}.view.active{display:block;animation:slideUp .5s cubic-bezier(.4,0,.2,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.pulse{animation:pulse 2s ease-in-out infinite}.card.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:20px;box-shadow:0 10px 30px #1f706d1a}@media (min-width: 768px){.card.glass{padding:30px}}.input-group{margin-bottom:15px}.input-group label{display:block;font-size:14px;font-weight:600;margin-bottom:5px;opacity:.8}@media (min-width: 768px){.input-group label{font-size:16px}}.input-field{width:100%;height:55px;border:2px solid var(--glass-border);border-radius:14px;padding:0 16px;font-size:18px;font-family:inherit;color:var(--text-main);background:#ffffffb3;transition:all .3s cubic-bezier(.4,0,.2,1);-webkit-appearance:none}@media (min-width: 768px){.input-field{height:60px;font-size:20px;padding:0 20px}}.input-field:focus{outline:none;border-color:var(--primary);background:var(--white);box-shadow:0 0 0 4px #00d4aa26;transform:translateY(-1px)}.input-field::placeholder{color:var(--text-light);opacity:.7}.warmup-border{border-left:4px solid var(--warmup)}.work-border{border-left:4px solid var(--primary)}.rest-border{border-left:4px solid var(--secondary)}.cooldown-border{border-left:4px solid var(--cooldown)}.divider{height:1px;background:var(--glass-border);margin:20px 0}.session-management h3{font-size:14px;margin-bottom:10px;font-weight:700}.picker-container select{width:100%;height:45px;border-radius:10px;border:1px solid var(--glass-border);background:var(--white);padding:0 10px;margin-bottom:12px;font-family:inherit;color:var(--text-main)}.save-group{display:grid;grid-template-columns:1fr auto;gap:10px;margin-bottom:20px}.save-group input{height:45px;border-radius:12px;border:2px solid var(--glass-border);padding:0 15px;font-family:inherit;background:#ffffffb3;transition:all .3s ease}.save-group input:focus{outline:none;border-color:var(--secondary);background:var(--white);box-shadow:0 0 0 3px #0984e326}.save-group .btn-secondary{height:45px;font-size:14px}.btn{width:100%;height:58px;border:none;border-radius:18px;font-size:17px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow);position:relative;overflow:hidden}@media (min-width: 768px){.btn{height:65px;font-size:19px;border-radius:20px}}.btn:after{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#fff3;border-radius:50%;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 24px #0000001f}.btn:active{transform:translateY(0) scale(.98);box-shadow:0 2px 12px #0000001a}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:var(--white)}.btn-secondary{background:var(--secondary);color:var(--white);padding:0 20px}.btn-danger{background:linear-gradient(135deg,var(--danger) 0%,#E74C3C 100%);color:var(--white)}.timer-display{text-align:center;background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:30px 20px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--glass-border)}@media (min-width: 768px){.timer-display{padding:40px 35px}}.progress-container{position:relative;width:240px;height:240px;margin:0 auto 30px}@media (min-width: 768px){.progress-container{width:300px;height:300px;margin:0 auto 40px}}@media (min-width: 1024px){.progress-container{width:350px;height:350px}}.progress-ring{transform:rotate(-90deg);filter:drop-shadow(0 4px 12px rgba(0,0,0,.1))}.progress-ring__circle{transition:stroke-dashoffset .15s cubic-bezier(.4,0,.2,1),stroke .4s ease;stroke-linecap:round}.timer-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center}#time-left{font-size:58px;font-weight:700;line-height:1;letter-spacing:-2px;text-shadow:0 2px 10px rgba(0,0,0,.1)}@media (min-width: 768px){#time-left{font-size:72px}}@media (min-width: 1024px){#time-left{font-size:86px}}#current-phase{font-size:14px;font-weight:500;opacity:.9;margin-top:8px;text-transform:uppercase;letter-spacing:1px}@media (min-width: 768px){#current-phase{font-size:16px;margin-top:12px}}.timer-info{margin-bottom:25px}@media (min-width: 768px){.timer-info{margin-bottom:35px}}#round-info{font-size:16px;font-weight:600;color:var(--text-light);background:#ffffff80;padding:8px 20px;border-radius:20px;display:inline-block}@media (min-width: 768px){#round-info{font-size:18px;padding:10px 25px}}