:root{--bg-color: #f7f7f8;--header-bg: rgba(247, 247, 248, .85);--text-color: #111827;--text-muted: #6b7280;--card-bg: #ffffff;--accent-color: #3b82f6;--accent-hover: #2563eb;--border-color: #e5e7eb;--danger-color: #ef4444;--success-color: #10b981;--radius: 12px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03)}@media(prefers-color-scheme:dark){body:not([data-theme=light]){--bg-color: #121212;--header-bg: rgba(18, 18, 18, .85);--text-color: #f9fafb;--text-muted: #9ca3af;--card-bg: #1e1e1e;--border-color: #374151}}body[data-theme=dark]{--bg-color: #121212;--header-bg: rgba(18, 18, 18, .85);--text-color: #f9fafb;--text-muted: #9ca3af;--card-bg: #1e1e1e;--border-color: #374151}body[data-theme=light]{--bg-color: #f7f7f8;--header-bg: rgba(247, 247, 248, .85);--text-color: #111827;--text-muted: #6b7280;--card-bg: #ffffff;--border-color: #e5e7eb}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);line-height:1.5;-webkit-font-smoothing:antialiased;padding-bottom:80px;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}#app{max-width:600px;margin:0 auto;padding:1rem;display:flex;flex-direction:column}header{display:flex;justify-content:space-between;align-items:center;padding:1rem;margin:-1rem -1rem 2rem;position:sticky;top:0;background-color:var(--header-bg, var(--bg-color));backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:40;border-bottom:1px solid var(--border-color)}.view-section{display:none;animation:slideFadeIn .35s cubic-bezier(.16,1,.3,1) forwards;opacity:0;transform:translateY(15px)}.view-section.active{display:block}@keyframes slideFadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background-color:rgba(var(--card-bg-rgb, 255, 255, 255),.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border-color);display:flex;justify-content:space-around;padding:.75rem 0 calc(.75rem + env(safe-area-inset-bottom));z-index:50;box-shadow:0 -4px 10px #0000000d}@media(prefers-color-scheme:dark){body:not([data-theme=light]) .bottom-nav{background-color:#1e1e1ed9}}body[data-theme=light] .bottom-nav{background-color:#ffffffd9}body[data-theme=dark] .bottom-nav{background-color:#1e1e1ed9}.nav-item{display:flex;flex-direction:column;align-items:center;gap:.25rem;color:var(--text-muted);width:100%;padding:.5rem;border-radius:var(--radius);transition:all .2s;background:transparent}.nav-item span{font-size:.75rem;font-weight:500}.nav-item.active{color:var(--accent-color)}.nav-item:hover:not(.active){color:var(--text-color);background-color:#00000005}.settings-list{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius)}.toggle-btn{background:var(--bg-color);border:1px solid var(--border-color);padding:.5rem 1rem;color:var(--text-color);font-weight:500}.toggle-btn:hover{border-color:var(--accent-color)}.toggle-btn.active-toggle{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.danger-zone{border-color:#ef44444d}.danger-btn{background:var(--danger-color);color:#fff;border:none;padding:.5rem 1rem;font-weight:500;cursor:pointer;border-radius:var(--radius)}.danger-btn:hover{background:#dc2626}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-top:1.5rem}.stat-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;text-align:center;box-shadow:var(--shadow)}.stat-value{font-size:2.5rem;font-weight:700;color:var(--accent-color);line-height:1;margin-bottom:.5rem}.stat-label{font-size:.875rem;color:var(--text-muted);font-weight:500}.details-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.details-header h2{font-size:1.5rem;margin:0}.details-meta{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.details-date{font-size:.875rem;color:var(--text-muted)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.5rem;margin-bottom:1.5rem;opacity:0;transform:translateY(10px);animation:fade-up .4s ease forwards}@keyframes fade-up{to{opacity:1;transform:translateY(0)}}.calendar-cell{position:relative;aspect-ratio:1;border-radius:4px;background-color:var(--bg-color);display:flex;justify-content:center;align-items:center;font-size:.85rem;color:var(--text-muted);font-weight:500;cursor:pointer;border:1px solid var(--border-color);transition:transform .2s,box-shadow .2s;z-index:100}.calendar-cell:active{transform:scale(.9)}.calendar-cell:hover{transform:translateY(-2px);box-shadow:0 4px 6px -1px #0000001a}.calendar-cell.level-0{background-color:var(--border-color)}.calendar-cell.level-1{background-color:#10b98140;color:var(--text-color)}.calendar-cell.level-2{background-color:#10b98180;color:#fff}.calendar-cell.level-3{background-color:#10b981bf;color:#fff}.calendar-cell.level-4{background-color:#10b981;color:#fff}.calendar-legend{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin-top:1rem;font-size:.75rem;color:var(--text-muted)}.calendar-legend .level{width:12px;height:12px;border-radius:2px}h1{font-size:1.75rem;font-weight:700;letter-spacing:-.025em}.header-actions{display:flex;align-items:center;gap:1rem}.status-indicator{display:inline-block;width:8px;height:8px;border-radius:50%;background-color:var(--success-color);transition:background-color .3s ease}.status-indicator.offline{background-color:var(--danger-color)}.status-indicator.syncing{background-color:var(--accent-color);animation:pulse 1.5s infinite}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.7}to{transform:scale(1);opacity:1}}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:1rem;border-radius:var(--radius);transition:all .2s ease}#add-habit-btn{background-color:var(--accent-color);color:#fff;width:2.5rem;height:2.5rem;border-radius:50%;display:flex;justify-content:center;align-items:center;font-size:1.5rem;line-height:1;box-shadow:var(--shadow)}#add-habit-btn:hover{background-color:var(--accent-hover);transform:scale(1.05)}.progress-container{width:100%;height:8px;background-color:var(--border-color);border-radius:var(--radius);margin-bottom:.5rem;overflow:hidden}.progress-bar-fill{height:100%;background-color:var(--success-color);width:0%;transition:width .4s cubic-bezier(.4,0,.2,1)}.progress-text{font-size:.875rem;color:var(--text-muted);text-align:right;margin-bottom:1.5rem;font-weight:500}.habit-list{display:flex;flex-direction:column;gap:1rem}.habit-item{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.25rem;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow);transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s ease,border-color .2s ease;position:relative;overflow:hidden;will-change:transform}.habit-item:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;border-color:var(--accent-color)}.habit-item.over{border-top:2px dashed var(--accent-color);opacity:.8;transform:scale(.98)}.habit-drag-handle{cursor:grab;color:var(--border-color);display:flex;align-items:center;justify-content:center;padding-right:.75rem;transition:color .2s}.habit-item:hover .habit-drag-handle{color:var(--text-muted)}.habit-drag-handle:active{cursor:grabbing}.habit-info{display:flex;flex-direction:column;flex-grow:1}.habit-title{font-weight:600;font-size:1.15rem;color:var(--text-color);letter-spacing:-.015em;display:flex;align-items:center;gap:.5rem}.habit-category-badge{font-size:.7rem;padding:.1rem .4rem;border-radius:12px;background-color:var(--border-color);color:var(--text-muted);font-weight:500;text-transform:uppercase}.habit-streak{font-size:.875rem;color:var(--text-muted);margin-top:.35rem}.habit-streak.active-streak{color:#f97316;font-weight:500}.habit-right{display:flex;align-items:center;gap:.75rem}.delete-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s cubic-bezier(.4,0,.2,1);opacity:.4}.habit-item:hover .custom-tooltip.visible{opacity:1}.focus-timer-container{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;width:280px;height:280px;margin:0 auto}.focus-ring{width:100%;height:100%;transform:rotate(-90deg);filter:drop-shadow(0 0 12px rgba(var(--accent-color-rgb, 59, 130, 246),.4))}.focus-ring-bg{fill:none;stroke:var(--border-color);stroke-width:3}.focus-ring-progress{fill:none;stroke:var(--accent-color);stroke-width:6;stroke-linecap:round;stroke-dasharray:283;stroke-dashoffset:0;transition:stroke-dashoffset 1s linear,stroke .3s ease}.focus-time-display{position:absolute;top:48%;left:50%;transform:translate(-50%,-50%);font-size:4.5rem;font-weight:800;color:var(--text-color);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:-.05em}.preset-btn{background:transparent;border:1px solid var(--border-color);border-radius:20px;padding:.4rem 1rem;font-weight:600;color:var(--text-muted);cursor:pointer;transition:all .2s ease}.preset-btn.active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.preset-btn:hover:not(.active){background:var(--bg-color);color:var(--text-color);border-color:var(--text-muted)}.focus-status{position:absolute;top:70%;left:50%;transform:translate(-50%);font-size:1rem;font-weight:500;color:var(--accent-color);opacity:.8;letter-spacing:.5px;text-transform:uppercase}.delete-btn:hover{color:var(--danger-color);background-color:#ef44441a;transform:rotate(15deg)}.check-btn{width:28px;height:28px;border-radius:50%;border:2px solid var(--accent-color);background:transparent;cursor:pointer;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;align-items:center;justify-content:center;position:relative}.check-btn:active{transform:scale(.85)}.check-btn.checked{background:var(--accent-color)}.check-btn.checked:after{content:"";width:6px;height:12px;border:solid var(--bg-color);border-width:0 2px 2px 0;transform:rotate(45deg);margin-bottom:2px;animation:checkmark-pop .3s cubic-bezier(.175,.885,.32,1.275) forwards}@keyframes checkmark-pop{0%{opacity:0;transform:rotate(45deg) scale(0)}to{opacity:1;transform:rotate(45deg) scale(1)}}.check-btn:not(.checked):hover{border-color:var(--success-color);color:var(--success-color)}.check-btn:not(.checked):hover:after{content:"✓";font-size:1.5rem;font-weight:700;opacity:.5}dialog{border:none;border-radius:calc(var(--radius) * 1.5);padding:2rem;background-color:var(--card-bg);color:var(--text-color);box-shadow:0 25px 50px -12px #00000040;margin:2rem auto;max-width:400px}dialog::backdrop{background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#add-form h2{margin-bottom:1.5rem}input[type=text],select{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:var(--radius);background-color:var(--bg-color);color:var(--text-color);font-size:1rem;margin-bottom:1.5rem;transition:border-color .2s;font-family:var(--font-family)}select{appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1em;padding-right:2.5rem;cursor:pointer}select option{background-color:var(--card-bg);color:var(--text-color)}input[type=text]:focus,select:focus{outline:none;border-color:var(--accent-color)}.form-actions{display:flex;justify-content:flex-end;gap:1rem}.form-actions button,.submit-btn,.cancel-btn{padding:.85rem 1.5rem;font-weight:600;font-size:1rem;border-radius:30px;transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s,background-color .2s}.form-actions button:active,.submit-btn:active,.cancel-btn:active{transform:scale(.95)}.cancel-btn{color:var(--text-color);background:var(--bg-color);border:1px solid var(--border-color)}.cancel-btn:hover{background-color:var(--border-color)}.submit-btn{background-color:var(--accent-color);color:#fff;border:none;box-shadow:0 4px 14px rgba(var(--accent-color-rgb, 59, 130, 246),.4)}.submit-btn:hover{background-color:var(--accent-hover);box-shadow:0 6px 20px rgba(var(--accent-color-rgb, 59, 130, 246),.6);transform:translateY(-2px)}.color-swatch{width:32px;height:32px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .2s,border-color .2s}.color-swatch:hover{transform:scale(1.1)}.color-swatch.active{border-color:var(--text-color);transform:scale(1.1)}.empty-state{text-align:center;color:var(--text-muted);margin-top:2rem;font-size:1.1rem}.chart-col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;flex:1}.chart-bar{width:100%;max-width:24px;background-color:var(--accent-color);border-radius:4px 4px 0 0;min-height:4px;transition:height .5s ease;opacity:.8}.chart-bar:hover{opacity:1}.chart-day{font-size:.7rem;color:var(--text-color);margin-top:.5rem;text-transform:uppercase;font-weight:500}