:root{--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--radius-s: 8px;--radius-m: 12px;--radius-l: 18px;--sidebar-w: 260px;--bottom-nav-h: 64px}[data-theme=dark]{--bg: #0f1117;--bg-soft: #161a23;--bg-elevated: #1d222e;--bg-hover: #252c3b;--border: #2a3142;--border-strong: #3a4358;--text: #e8eaf0;--text-secondary: #a0a8bd;--text-muted: #6b7390;--accent: #8b5cf6;--accent-hover: #7c4de8;--accent-soft: rgba(139, 92, 246, .16);--accent-contrast: #ffffff;--success: #22c55e;--success-soft: rgba(34, 197, 94, .16);--warning: #f59e0b;--warning-soft: rgba(245, 158, 11, .16);--danger: #ef4444;--danger-soft: rgba(239, 68, 68, .16);--info: #38bdf8;--info-soft: rgba(56, 189, 248, .16);--shadow: 0 8px 24px rgba(0, 0, 0, .4);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3)}[data-theme=light]{--bg: #f6f7fb;--bg-soft: #ffffff;--bg-elevated: #ffffff;--bg-hover: #eef0f6;--border: #e3e6ef;--border-strong: #cdd3e1;--text: #1b1f2b;--text-secondary: #525a6e;--text-muted: #8b93a7;--accent: #7c50e8;--accent-hover: #6b40d6;--accent-soft: rgba(124, 80, 232, .12);--accent-contrast: #ffffff;--success: #16a34a;--success-soft: rgba(22, 163, 74, .12);--warning: #d97706;--warning-soft: rgba(217, 119, 6, .12);--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .12);--info: #0284c7;--info-soft: rgba(2, 132, 199, .12);--shadow: 0 8px 24px rgba(20, 30, 60, .1);--shadow-sm: 0 2px 8px rgba(20, 30, 60, .08)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;font-size:15px;-webkit-font-smoothing:antialiased;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:700}h1{font-size:1.8rem}h2{font-size:1.4rem}h3{font-size:1.1rem}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted);font-size:.85rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:var(--radius-m);border:1px solid transparent;font-size:.95rem;font-weight:600;transition:background .15s ease,border-color .15s ease,transform .1s ease;text-decoration:none;white-space:nowrap}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.55!important;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--accent-contrast)}.btn-primary:hover{background:var(--accent-hover);text-decoration:none}.btn-outline{background:transparent;border-color:var(--border-strong);color:var(--text)}.btn-outline:hover{background:var(--bg-hover)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-danger-outline{background:transparent;border-color:var(--danger);color:var(--danger)}.btn-danger-outline:hover{background:var(--danger-soft)}.btn-sm{padding:6px 12px;font-size:.85rem}.btn-lg{padding:13px 24px;font-size:1rem}.btn-block{width:100%}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-l);box-shadow:var(--shadow-sm)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field-label{font-size:.88rem;font-weight:600;color:var(--text-secondary)}.field-hint{font-size:.8rem;color:var(--text-muted)}.input,.select,.textarea{width:100%;padding:11px 14px;border-radius:var(--radius-m);border:1px solid var(--border-strong);background:var(--bg-soft);color:var(--text);font-size:.95rem;transition:border-color .15s ease,box-shadow .15s ease}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.input::placeholder,.textarea::placeholder{color:var(--text-muted)}.textarea{resize:vertical;min-height:80px}.form-error{color:var(--danger);font-size:.85rem;margin-top:4px}.form-error-box{background:var(--danger-soft);border:1px solid var(--danger);color:var(--danger);border-radius:var(--radius-m);padding:10px 14px;font-size:.9rem;margin-bottom:16px}.switch{position:relative;display:inline-block;width:46px;height:26px;flex-shrink:0}.switch input{opacity:0;width:0;height:0}.switch-slider{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg-hover);border:1px solid var(--border-strong);border-radius:999px;transition:background .2s ease;cursor:pointer}.switch-slider:before{content:"";position:absolute;width:18px;height:18px;border-radius:50%;top:3px;left:3px;background:var(--text-muted);transition:transform .2s ease,background .2s ease}.switch input:checked+.switch-slider{background:var(--accent);border-color:var(--accent)}.switch input:checked+.switch-slider:before{transform:translate(20px);background:#fff}.habit-check{width:26px;height:26px;border-radius:8px;border:2px solid var(--border-strong);background:var(--bg-soft);display:inline-flex;align-items:center;justify-content:center;color:transparent;transition:all .15s ease;flex-shrink:0}.habit-check.checked{background:var(--success);border-color:var(--success);color:#fff}.habit-check-button{background:none;border:none;padding:0}.progress{height:10px;border-radius:999px;background:var(--bg-hover);overflow:hidden}.progress-fill{height:100%;border-radius:999px;background:var(--accent);transition:width .35s ease}.progress-fill.success{background:var(--success)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;padding:16px;z-index:100;animation:fadeIn .15s ease}.modal{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-l);box-shadow:var(--shadow);width:100%;max-width:540px;max-height:90vh;overflow-y:auto;animation:slideUp .2s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border)}.modal-body{padding:20px}.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}.toast-viewport{position:fixed;bottom:80px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:200;width:min(92vw,400px)}.toast{background:var(--bg-elevated);border:1px solid var(--border);border-left:3px solid var(--accent);color:var(--text);border-radius:var(--radius-m);padding:12px 16px;box-shadow:var(--shadow);font-size:.9rem;animation:slideUp .2s ease}.toast.success{border-left-color:var(--success)}.toast.error{border-left-color:var(--danger)}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:600;background:var(--bg-hover);color:var(--text-secondary)}.badge-success{background:var(--success-soft);color:var(--success)}.badge-warning{background:var(--warning-soft);color:var(--warning)}.badge-danger{background:var(--danger-soft);color:var(--danger)}.badge-info{background:var(--info-soft);color:var(--info)}.badge-accent{background:var(--accent-soft);color:var(--accent)}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);flex-shrink:0;position:fixed;inset:0 auto 0 0;background:var(--bg-soft);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 14px;z-index:50}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:0 10px 18px;font-size:1.15rem;font-weight:800}.sidebar-logo .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center}.sidebar-nav{display:flex;flex-direction:column;gap:2px;flex:1}.nav-link{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:var(--radius-m);color:var(--text-secondary);font-weight:600;font-size:.93rem;transition:background .15s ease,color .15s ease;text-decoration:none}.nav-link:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}.nav-link.active{background:var(--accent-soft);color:var(--accent)}.sidebar-footer{border-top:1px solid var(--border);padding-top:14px;display:flex;flex-direction:column;gap:6px}.main{flex:1;margin-left:var(--sidebar-w);padding:28px 32px 88px;min-width:0}.page-header{margin-bottom:24px}.page-title{font-size:1.6rem;font-weight:800;margin-bottom:4px}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:var(--bottom-nav-h);background:var(--bg-soft);border-top:1px solid var(--border);z-index:50}.bottom-nav .bottom-nav-inner{display:flex;height:100%}.bottom-nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:.65rem;font-weight:600;color:var(--text-muted);text-decoration:none}.bottom-nav-item.active{color:var(--accent)}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.stack{display:flex;flex-direction:column;gap:16px}.row{display:flex;align-items:center;gap:10px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:10px}.flex-wrap{flex-wrap:wrap}.spacer{flex:1}.mt-1{margin-top:6px}.mt-2{margin-top:12px}.mt-3{margin-top:20px}.mt-4{margin-top:28px}.mb-1{margin-bottom:6px}.mb-2{margin-bottom:12px}.mb-3{margin-bottom:20px}.habit-card{display:flex;align-items:center;gap:14px;padding:14px 16px}.habit-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.habit-info{flex:1;min-width:0}.habit-name{font-weight:700;font-size:.98rem;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.habit-meta{font-size:.82rem;color:var(--text-muted);margin-top:2px}.habit-value-input{width:84px;text-align:center;padding:9px 8px}.landing{min-height:100vh}.landing-nav{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;max-width:1200px;margin:0 auto}.hero{text-align:center;padding:80px 20px 60px;max-width:800px;margin:0 auto}.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.15}.hero-sub{font-size:1.15rem;color:var(--text-secondary);margin:20px auto 32px;max-width:560px}.landing-section{max-width:1080px;margin:0 auto;padding:56px 24px}.landing-section h2{text-align:center;margin-bottom:32px;font-size:1.7rem}.landing-note{background:var(--accent-soft);border:1px solid var(--accent);color:var(--accent);border-radius:var(--radius-m);padding:14px 18px;font-size:.95rem;margin:24px auto;max-width:760px;text-align:center}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.calendar-header-cell{text-align:center;font-size:.78rem;font-weight:700;color:var(--text-muted);padding:6px 0}.calendar-cell{aspect-ratio:1;min-height:44px;border-radius:var(--radius-m);border:1px solid var(--border);background:var(--bg-elevated);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;font-size:.9rem;font-weight:600;transition:transform .1s ease,border-color .15s ease}.calendar-cell:hover{border-color:var(--accent);transform:scale(1.03)}.calendar-cell.empty{visibility:hidden}.calendar-cell.today{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.calendar-cell.full{background:var(--success-soft);color:var(--success)}.calendar-cell.partial{background:var(--warning-soft);color:var(--warning)}.calendar-cell.empty-state{background:var(--bg-hover);color:var(--text-muted)}.calendar-cell .cell-ratio{font-size:.68rem;font-weight:500}.stat-table{width:100%;border-collapse:collapse;font-size:.9rem}.stat-table th,.stat-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}.stat-table th{color:var(--text-muted);font-weight:600;font-size:.8rem}.chart-wrap{width:100%;overflow-x:auto}.chart-svg{display:block}.chart-label{font-size:.72rem;fill:var(--text-muted)}.divider{height:1px;background:var(--border);border:none;margin:16px 0}.center{text-align:center}.fade-in{animation:fadeIn .25s ease}@media (max-width: 1024px){.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.sidebar{display:none}.main{margin-left:0;padding:20px 16px calc(var(--bottom-nav-h) + 20px)}.bottom-nav{display:block}.grid-2,.grid-3{grid-template-columns:1fr}.landing-section{padding:40px 18px}.hero{padding:60px 18px 40px}}@media (max-width: 480px){.page-title{font-size:1.35rem}.habit-card{padding:12px}.toast-viewport{bottom:calc(var(--bottom-nav-h) + 12px)}}