:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--bg-deep: #0d1117;--bg-card: #161b22;--bg-card-hover: #1c2333;--border: rgba(255, 255, 255, .08);--purple-soft: #a78bfa;--purple-deep: #7c3aed;--purple-glow: rgba(167, 139, 250, .15);--blue-soft: #93c5fd;--blue-deep: #3b82f6;--yellow-soft: #fde68a;--pink-soft: #f9a8d4;--green-soft: #86efac;--text-primary: #e6edf3;--text-secondary: rgba(230, 237, 243, .6);--text-muted: rgba(230, 237, 243, .35)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg-deep);color:var(--text-primary)}body{background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(124,58,237,.12),transparent),radial-gradient(ellipse 60% 40% at 80% 100%,rgba(59,130,246,.08),transparent),var(--bg-deep)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.app{max-width:520px;margin:0 auto;padding:2rem 1.25rem 4rem;min-height:100vh}.header{text-align:center;margin-bottom:2rem}.header h1{font-size:1.75rem;font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,var(--purple-soft),var(--blue-soft));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header .subtitle{color:var(--text-secondary);font-size:.85rem;margin-top:.25rem}.mascot-container{display:flex;justify-content:center;margin-bottom:1.5rem;position:relative}.mascot{position:relative;width:120px;height:120px;animation:float 4s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.mascot-body{width:100px;height:90px;background:linear-gradient(135deg,#c4b5fd,#a78bfa);border-radius:50px 50px 45px 45px;position:absolute;bottom:0;left:10px;box-shadow:0 8px 30px #a78bfa4d}.mascot-body:after{content:"";position:absolute;width:70px;height:40px;background:#ffffff1f;border-radius:50%;top:12px;left:15px}.mascot-eye{position:absolute;width:14px;height:3px;background:#4c1d95;border-radius:2px;top:35px;animation:blink 5s ease-in-out infinite}.mascot-eye.left{left:30px;transform:rotate(-5deg)}.mascot-eye.right{left:62px;transform:rotate(5deg)}@keyframes blink{0%,42%,46%,to{transform:scaleY(1)}44%{transform:scaleY(.2)}}.mascot-mouth{position:absolute;width:10px;height:5px;border-bottom:2px solid #4c1d95;border-radius:0 0 50% 50%;top:48px;left:50px}.mascot-blush{position:absolute;width:16px;height:10px;background:#f472b666;border-radius:50%;top:44px}.mascot-blush.left{left:20px}.mascot-blush.right{left:70px}.mascot-nightcap{position:absolute;top:-10px;left:25px;width:0;height:0;border-left:25px solid transparent;border-right:25px solid transparent;border-bottom:50px solid #818cf8;border-radius:0;transform:rotate(15deg)}.mascot-nightcap:after{content:"";position:absolute;width:14px;height:14px;background:#fde68a;border-radius:50%;top:38px;left:-7px;box-shadow:0 0 8px #fde68a99}.zzz{position:absolute;font-size:1.1rem;font-weight:700;color:var(--purple-soft);opacity:0;animation:zzz-float 3s ease-in-out infinite}.zzz:nth-child(1){top:0;right:5px;animation-delay:0s}.zzz:nth-child(2){top:-15px;right:20px;animation-delay:1s;font-size:.9rem}.zzz:nth-child(3){top:-25px;right:10px;animation-delay:2s;font-size:.75rem}@keyframes zzz-float{0%{opacity:0;transform:translateY(5px) scale(.8)}30%{opacity:.8}to{opacity:0;transform:translateY(-25px) scale(1.1)}}.stars{position:fixed;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:0;overflow:hidden}.star{position:absolute;width:2px;height:2px;background:#fff;border-radius:50%;opacity:0;animation:twinkle 4s ease-in-out infinite}@keyframes twinkle{0%,to{opacity:.1}50%{opacity:.6}}.app{position:relative;z-index:1}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin-bottom:1.5rem}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:.75rem;padding:1rem .75rem;text-align:center;transition:background .2s}.stat-card:hover{background:var(--bg-card-hover)}.stat-icon{font-size:1.25rem;margin-bottom:.25rem}.stat-value{font-size:1.35rem;font-weight:700;letter-spacing:-.02em}.stat-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-top:.1rem}.log-section{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;margin-bottom:1.5rem}.section-title{font-size:.95rem;font-weight:600;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.time-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}.time-input-group{display:flex;flex-direction:column;gap:.35rem}.time-input-group label{font-size:.75rem;color:var(--text-secondary);font-weight:500}.time-input-group input{background:#ffffff0d;border:1px solid var(--border);border-radius:.5rem;padding:.6rem .75rem;color:var(--text-primary);font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s;width:100%;color-scheme:dark}.time-input-group input:focus{border-color:var(--purple-soft);box-shadow:0 0 0 3px var(--purple-glow)}.quality-section{margin-bottom:1rem}.quality-section label{display:block;font-size:.75rem;color:var(--text-secondary);font-weight:500;margin-bottom:.5rem}.quality-options{display:flex;gap:.5rem}.quality-btn{flex:1;padding:.5rem .25rem;border:1px solid var(--border);background:#ffffff08;border-radius:.5rem;cursor:pointer;text-align:center;transition:all .2s;color:var(--text-secondary);font-size:.75rem;font-family:inherit}.quality-btn:hover{background:#ffffff0f}.quality-btn.active{border-color:var(--purple-soft);background:var(--purple-glow);color:var(--purple-soft)}.quality-emoji{display:block;font-size:1.2rem;margin-bottom:.15rem}.log-btn{width:100%;padding:.75rem;background:linear-gradient(135deg,var(--purple-deep),var(--blue-deep));border:none;border-radius:.75rem;color:#fff;font-size:.95rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s;letter-spacing:-.01em}.log-btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px #7c3aed4d}.log-btn:active{transform:translateY(0)}.history-section{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;margin-bottom:1.5rem}.sleep-entry{display:flex;align-items:center;gap:.75rem;padding:.85rem 0;border-bottom:1px solid var(--border)}.sleep-entry:last-child{border-bottom:none}.entry-mascot{font-size:1.75rem;width:40px;text-align:center;flex-shrink:0}.entry-details{flex:1;min-width:0}.entry-date{font-size:.8rem;font-weight:600;color:var(--text-primary)}.entry-times{font-size:.72rem;color:var(--text-secondary);margin-top:.1rem}.entry-duration{font-size:.85rem;font-weight:700;color:var(--purple-soft);text-align:right;flex-shrink:0}.entry-quality{font-size:.72rem;color:var(--text-muted);text-align:right}.week-section{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;margin-bottom:1.5rem}.week-chart{display:flex;align-items:flex-end;gap:.5rem;height:120px;padding-top:.5rem}.day-bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end}.day-bar{width:100%;border-radius:.35rem .35rem 0 0;min-height:4px;transition:height .4s ease;position:relative}.day-bar.purple{background:linear-gradient(to top,var(--purple-deep),var(--purple-soft))}.day-bar.blue{background:linear-gradient(to top,var(--blue-deep),var(--blue-soft))}.day-bar-hours{font-size:.6rem;color:var(--text-muted);margin-bottom:.25rem}.day-label{font-size:.65rem;color:var(--text-muted);margin-top:.4rem;text-transform:uppercase;letter-spacing:.05em}.empty-state{text-align:center;padding:2rem 1rem;color:var(--text-muted)}.empty-state .empty-mascot{font-size:2.5rem;margin-bottom:.75rem}.empty-state p{font-size:.85rem;line-height:1.5}.tip-card{background:linear-gradient(135deg,#a78bfa14,#93c5fd14);border:1px solid rgba(167,139,250,.15);border-radius:1rem;padding:1.25rem;margin-bottom:1.5rem;display:flex;gap:.75rem;align-items:flex-start}.tip-icon{font-size:1.5rem;flex-shrink:0}.tip-text{font-size:.8rem;color:var(--text-secondary);line-height:1.5}.tip-text strong{color:var(--purple-soft)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.sleep-entry{animation:fadeIn .3s ease}