:root{--bg-primary: #0f1117;--bg-secondary: #161822;--bg-card: rgba(25, 28, 40, .75);--bg-card-hover: rgba(35, 38, 55, .85);--bg-glass: rgba(255, 255, 255, .04);--bg-modal-overlay: rgba(0, 0, 0, .6);--text-primary: #e8eaf0;--text-secondary: #8b90a0;--text-muted: #555a6e;--text-inverse: #0f1117;--accent: hsl(210, 80%, 55%);--accent-dim: hsl(210, 60%, 35%);--sleep-poor-1: hsl(0, 60%, 30%);--sleep-poor-2: hsl(0, 65%, 38%);--sleep-poor-3: hsl(0, 70%, 46%);--sleep-okay-1: hsl(220, 8%, 32%);--sleep-okay-2: hsl(220, 10%, 42%);--sleep-okay-3: hsl(220, 12%, 52%);--sleep-well-1: hsl(210, 65%, 32%);--sleep-well-2: hsl(210, 75%, 42%);--sleep-well-3: hsl(210, 85%, 52%);--border: rgba(255, 255, 255, .06);--border-light: rgba(255, 255, 255, .1);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 8px 24px rgba(0, 0, 0, .3);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .4);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 22px;--radius-pill: 50px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--tab-bar-height: 64px;--header-height: 56px;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1)}[data-theme=light]{--bg-primary: #f4f5f9;--bg-secondary: #ffffff;--bg-card: rgba(255, 255, 255, .85);--bg-card-hover: rgba(245, 246, 250, .95);--bg-glass: rgba(0, 0, 0, .03);--bg-modal-overlay: rgba(0, 0, 0, .35);--text-primary: #1a1d2e;--text-secondary: #6b6f80;--text-muted: #a0a4b0;--text-inverse: #f4f5f9;--border: rgba(0, 0, 0, .06);--border-light: rgba(0, 0, 0, .1);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 8px 24px rgba(0, 0, 0, .08);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .12);--sleep-poor-1: hsl(0, 55%, 75%);--sleep-poor-2: hsl(0, 60%, 62%);--sleep-poor-3: hsl(0, 65%, 52%);--sleep-okay-1: hsl(220, 8%, 72%);--sleep-okay-2: hsl(220, 10%, 60%);--sleep-okay-3: hsl(220, 12%, 50%);--sleep-well-1: hsl(210, 55%, 72%);--sleep-well-2: hsl(210, 65%, 58%);--sleep-well-3: hsl(210, 80%, 48%)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{height:100%;font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;overflow:hidden;-webkit-user-select:none;user-select:none}#app{height:100%;display:flex;flex-direction:column;max-width:480px;margin:0 auto;position:relative;overflow:hidden}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input{font-family:inherit;color:inherit}input,textarea{-webkit-user-select:text;user-select:text}.app-header{height:var(--header-height);display:flex;align-items:center;justify-content:center;padding:0 20px;flex-shrink:0;position:relative}.app-header h1{font-size:18px;font-weight:600;letter-spacing:.5px}.tab-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:0 16px 16px;scroll-behavior:smooth}.tab-content::-webkit-scrollbar{width:4px}.tab-content::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:4px}.tab-bar{height:var(--tab-bar-height);display:flex;align-items:center;justify-content:space-around;background:var(--bg-secondary);border-top:1px solid var(--border);flex-shrink:0;padding-bottom:env(safe-area-inset-bottom,0)}.tab-bar-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 16px;border-radius:var(--radius-sm);transition:color .2s,transform .15s var(--ease-spring);color:var(--text-muted);position:relative}.tab-bar-btn.active{color:var(--accent)}.tab-bar-btn:active{transform:scale(.92)}.tab-bar-btn svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.tab-bar-btn span{font-size:10px;font-weight:500;letter-spacing:.3px}.tab-bar-btn .active-dot{position:absolute;top:2px;width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:0;transition:opacity .2s}.tab-bar-btn.active .active-dot{opacity:1}.calendar-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.calendar-nav-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);transition:background .2s,transform .15s var(--ease-spring)}.calendar-nav-btn:hover{background:var(--bg-card-hover)}.calendar-nav-btn:active{transform:scale(.9)}.calendar-nav-btn svg{width:18px;height:18px;stroke:var(--text-primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.calendar-month-label{font-size:18px;font-weight:600}.calendar-weekdays{display:grid;grid-template-columns:repeat(7,1fr);margin-bottom:8px}.calendar-weekday{text-align:center;font-size:11px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;padding:4px 0}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.calendar-cell{aspect-ratio:1;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:500;position:relative;cursor:pointer;transition:transform .15s var(--ease-spring),box-shadow .2s;background:var(--bg-glass);color:var(--text-secondary)}.calendar-cell.empty{background:transparent;cursor:default}.calendar-cell.today{outline:2px solid var(--accent);outline-offset:-2px;color:var(--text-primary);font-weight:700}.calendar-cell.has-entry{color:#fff;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.3)}.calendar-cell:not(.empty):hover{transform:scale(1.08);box-shadow:var(--shadow-sm)}.calendar-cell:not(.empty):active{transform:scale(.95)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-modal-overlay);z-index:100;display:flex;align-items:flex-end;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-overlay.open{opacity:1;pointer-events:all}.modal-sheet{width:100%;max-width:480px;background:var(--bg-secondary);border-radius:var(--radius-lg) var(--radius-lg) 0 0;padding:0;transform:translateY(100%);transition:transform .4s var(--ease-out);max-height:85vh;display:flex;flex-direction:column}.modal-scroll-content{flex:1;overflow-y:auto;padding:12px 24px 16px}.modal-sticky-footer{padding:12px 24px 28px;background:var(--bg-secondary);border-top:1px solid var(--border);flex-shrink:0}.modal-overlay.open .modal-sheet{transform:translateY(0)}.modal-handle{width:40px;height:4px;border-radius:2px;background:var(--border-light);margin:0 auto 20px}.modal-title{font-size:20px;font-weight:700;margin-bottom:4px}.modal-subtitle{font-size:13px;color:var(--text-secondary);margin-bottom:24px}.slider-section{margin-bottom:28px}.slider-section-label{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:16px}.slider-container{position:relative;padding:0 4px}.slider-track-bg{width:100%;height:8px;border-radius:4px;background:linear-gradient(to right,#a02222,#a02222 33%,#606876 33%,#606876 66%,#1b6bbb 66%,#1b6bbb);position:absolute;top:50%;transform:translateY(-50%);pointer-events:none}.sleep-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:8px;background:transparent;position:relative;z-index:2;outline:none}.sleep-slider::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:0 2px 8px #0000004d,0 0 0 3px #ffffff26;cursor:pointer;transition:transform .15s var(--ease-spring),box-shadow .2s}.sleep-slider::-webkit-slider-thumb:hover{transform:scale(1.15)}.sleep-slider::-webkit-slider-thumb:active{transform:scale(1.1);box-shadow:0 2px 12px #0006,0 0 0 4px #fff3}.sleep-slider::-moz-range-thumb{width:28px;height:28px;border-radius:50%;border:none;background:#fff;box-shadow:0 2px 8px #0000004d,0 0 0 3px #ffffff26;cursor:pointer}.slider-labels{display:flex;justify-content:space-between;margin-top:12px;font-size:11px;color:var(--text-muted)}.slider-quality-display{text-align:center;margin-top:16px;padding:12px 20px;border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border);transition:border-color .3s}.slider-quality-display .quality-emoji{font-size:32px;margin-bottom:6px}.slider-quality-display .quality-label{font-size:15px;font-weight:600}.slider-quality-display .quality-sub{font-size:12px;color:var(--text-secondary);margin-top:2px}.time-input-wrapper{display:flex;align-items:center;gap:12px;background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;margin-bottom:28px}.time-input-wrapper svg{width:22px;height:22px;stroke:var(--text-secondary);fill:none;stroke-width:1.8;flex-shrink:0}.time-input-wrapper input[type=time]{flex:1;background:none;border:none;font-size:18px;font-weight:600;outline:none;color:var(--text-primary)}.time-input-wrapper input[type=time]::-webkit-calendar-picker-indicator{filter:invert(.7)}.btn-row{display:flex;gap:10px}.btn{flex:1;padding:14px 20px;border-radius:var(--radius-md);font-size:14px;font-weight:600;transition:transform .15s var(--ease-spring),background .2s;text-align:center}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:#187adc}.btn-secondary{background:var(--bg-glass);border:1px solid var(--border);color:var(--text-secondary)}.btn-secondary:hover{background:var(--bg-card-hover)}.btn-danger{background:#b12525;color:#fff}.btn-danger:hover{background:#972020}.details-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.details-header h2{font-size:20px;font-weight:700}.details-add-btn{width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;transition:transform .15s var(--ease-spring)}.details-add-btn:active{transform:scale(.9)}.details-list{display:flex;flex-direction:column;gap:8px}.detail-card{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .15s var(--ease-spring),box-shadow .2s}.detail-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.detail-emoji{font-size:28px;flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);border-radius:var(--radius-sm)}.detail-text{flex:1;font-size:14px;font-weight:500}.detail-actions{display:flex;gap:4px}.detail-action-btn{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .2s}.detail-action-btn:hover{background:var(--bg-card-hover)}.detail-action-btn svg{width:16px;height:16px;stroke:var(--text-muted);fill:none;stroke-width:2}.detail-form{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;margin-bottom:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:fadeSlideIn .25s var(--ease-out)}.detail-form-row{display:flex;gap:10px;margin-bottom:12px}.detail-emoji-input{width:52px;height:44px;text-align:center;font-size:24px;background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none}.detail-emoji-input:focus{border-color:var(--accent)}.detail-desc-input{flex:1;height:44px;padding:0 12px;font-size:14px;background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none}.detail-desc-input:focus{border-color:var(--accent)}.detail-empty{text-align:center;padding:40px 20px;color:var(--text-muted)}.detail-empty .empty-emoji{font-size:48px;margin-bottom:12px}.detail-empty p{font-size:14px;line-height:1.5}.settings-section{margin-bottom:24px}.settings-section-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-bottom:10px}.settings-row{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:6px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.settings-row-label{font-size:14px;font-weight:500}.settings-row-desc{font-size:12px;color:var(--text-secondary);margin-top:2px}.toggle{width:48px;height:26px;border-radius:13px;background:var(--text-muted);position:relative;cursor:pointer;transition:background .25s;flex-shrink:0}.toggle.on{background:var(--accent)}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .25s var(--ease-spring);box-shadow:0 1px 3px #0003}.toggle.on:after{transform:translate(22px)}.settings-version{text-align:center;color:var(--text-muted);font-size:12px;margin-top:40px}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .3s ease}@media(min-width:481px){#app{border-left:1px solid var(--border);border-right:1px solid var(--border)}}.confirm-dialog{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;background:var(--bg-modal-overlay);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .2s}.confirm-dialog.open{opacity:1;pointer-events:all}.confirm-dialog-box{background:var(--bg-secondary);border-radius:var(--radius-md);padding:24px;max-width:320px;width:90%;box-shadow:var(--shadow-lg)}.confirm-dialog-box h3{font-size:16px;font-weight:700;margin-bottom:8px}.confirm-dialog-box p{font-size:13px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.import-toast{position:fixed;bottom:80px;left:50%;transform:translate(-50%) translateY(20px);background:var(--accent);color:#fff;padding:12px 24px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease-out);z-index:300;white-space:nowrap}.import-toast.show{opacity:1;transform:translate(-50%) translateY(0)}.main-note-input{width:100%;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 16px;font-size:14px;font-family:var(--font);color:var(--text-primary);outline:none;resize:none;overflow:hidden;min-height:50px}.main-note-input::placeholder{color:var(--text-muted)}.main-note-input:focus{border-color:var(--accent)}.modal-details-section{margin-bottom:28px}.modal-detail-chips{display:flex;flex-wrap:wrap;gap:8px}.modal-detail-chip{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-pill);background:var(--bg-glass);border:1px solid var(--border);cursor:pointer;transition:all .2s;font-size:13px}.modal-detail-chip:hover{background:var(--bg-card-hover)}.modal-detail-chip.active{background:var(--accent-dim);border-color:var(--accent);color:#fff}.modal-detail-chip .chip-emoji{font-size:16px}.modal-detail-chip .chip-label{font-weight:500}.attached-details-list{display:flex;flex-direction:column;gap:6px;margin-top:12px}.attached-detail-row{display:flex;flex-direction:column;gap:6px;padding:10px 12px;background:var(--bg-glass);border-radius:var(--radius-sm);font-size:13px;animation:fadeSlideIn .2s var(--ease-out)}.attached-detail-top{display:flex;align-items:center;gap:10px}.attached-detail-top .att-emoji{font-size:18px}.attached-detail-top .att-desc{flex:1;font-weight:500}.attached-detail-top .att-time{color:var(--text-muted);font-size:11px;font-weight:500}.attached-detail-top .att-remove{width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-muted);cursor:pointer;transition:background .2s}.attached-detail-top .att-remove:hover{background:var(--bg-card-hover);color:#d22d2d}.att-note-input{width:100%;background:var(--bg-card);border:1px solid var(--border);border-radius:6px;padding:6px 10px;font-size:12px;font-family:var(--font);color:var(--text-primary);outline:none;resize:none;min-height:30px}.att-note-input::placeholder{color:var(--text-muted)}.att-note-input:focus{border-color:var(--accent)}.no-details-hint{font-size:12px;color:var(--text-muted);text-align:center;padding:8px 0}.calendar-cell .grade-dot{position:absolute;bottom:3px;right:3px;width:8px;height:8px;border-radius:50%;border:1px solid rgba(0,0,0,.2)}.grade-dot.grade-a{background:#28bd5a}.grade-dot.grade-b{background:#d9ca26}.grade-dot.grade-c{background:#df7020}.grade-dot.grade-f{background:#d92626}.calendar-cell .detail-dot{position:absolute;bottom:3px;left:3px;width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.85}.detail-confirm-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;background:var(--bg-modal-overlay);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .2s}.detail-confirm-overlay.open{opacity:1;pointer-events:all}.detail-confirm-box{background:var(--bg-secondary);border-radius:var(--radius-md);padding:24px;max-width:320px;width:90%;box-shadow:var(--shadow-lg);animation:fadeSlideIn .25s var(--ease-out)}.detail-confirm-box h3{font-size:16px;font-weight:700;margin-bottom:8px}.detail-confirm-box p{font-size:13px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.settings-time-row{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:6px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.settings-time-input{background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;font-size:15px;font-weight:600;outline:none;color:var(--text-primary);width:110px;text-align:center}.settings-time-input:focus{border-color:var(--accent)}.settings-time-input::-webkit-calendar-picker-indicator{filter:invert(.7)}.modal-grade-display{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:28px}.modal-grade-letter{font-size:28px;font-weight:800;width:44px;text-align:center}.modal-grade-info{flex:1}.modal-grade-info .grade-title{font-size:13px;font-weight:600}.modal-grade-info .grade-detail{font-size:11px;color:var(--text-secondary);margin-top:2px}.update-banner{position:fixed;top:0;left:0;right:0;z-index:500;background:var(--bg-secondary);border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);padding:16px 20px;transform:translateY(-100%);transition:transform .4s var(--ease-out)}.update-banner.show{transform:translateY(0)}.update-banner-content{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;max-width:480px;margin-left:auto;margin-right:auto}.update-banner-icon{font-size:24px;flex-shrink:0;line-height:1}.update-banner-title{font-size:14px;font-weight:700;margin-bottom:4px}.update-banner-desc{font-size:12px;color:var(--text-secondary);line-height:1.4}.update-banner-actions{display:flex;gap:8px;max-width:480px;margin-left:auto;margin-right:auto}.update-btn{flex:1;padding:10px 16px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;border:none;cursor:pointer;transition:transform .15s var(--ease-spring),background .2s;font-family:var(--font)}.update-btn:active{transform:scale(.97)}.update-btn-dismiss{background:var(--bg-glass);border:1px solid var(--border);color:var(--text-secondary)}.update-btn-dismiss:hover{background:var(--bg-card-hover)}.update-btn-accept{background:#29a352;color:#fff}.update-btn-accept:hover{background:#248f47}.update-toast{position:fixed;top:24px;left:50%;transform:translate(-50%) translateY(-20px);background:#29a352;color:#fff;padding:12px 24px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;font-family:var(--font);box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease-out);z-index:500;white-space:nowrap}.update-toast.show{opacity:1;transform:translate(-50%) translateY(0)}