:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #16161f;--bg-card-hover: #1c1c28;--bg-input: #1a1a26;--border: #2a2a3a;--border-focus: #22c55e;--text-primary: #e8e8ec;--text-secondary: #8888a0;--text-muted: #55556a;--accent: #22c55e;--accent-dim: #22c55e20;--accent-glow: #22c55e40;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--radius: 8px;--radius-lg: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.loading-screen,.page-loading{display:flex;align-items:center;justify-content:center;min-height:200px;flex:1}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-primary)}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px;width:100%;max-width:380px;text-align:center}.login-header{margin-bottom:24px}.login-logo{width:48px;height:48px;background:var(--accent);border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}.login-header h1{font-size:1.5rem;font-weight:600;margin-bottom:4px}.login-header p{color:var(--text-secondary);font-size:.875rem}.login-error{background:#ef444420;color:var(--danger);padding:10px 14px;border-radius:var(--radius);font-size:.825rem;margin-bottom:16px;border:1px solid #ef444440}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:var(--accent);color:#0a0a0f;border:none;border-radius:var(--radius);font-size:.875rem;font-weight:600;cursor:pointer;transition:opacity .15s}.btn-primary:hover{opacity:.9}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius);font-size:.875rem;font-weight:500;cursor:pointer;transition:border-color .15s}.btn-secondary:hover{border-color:var(--text-secondary)}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:transparent;border:1px solid transparent;border-radius:var(--radius);color:var(--text-secondary);cursor:pointer;transition:all .15s}.btn-icon:hover{background:var(--bg-input);color:var(--text-primary)}.btn-icon.danger:hover{color:var(--danger)}.btn-icon-sm{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:transparent;border:none;border-radius:var(--radius);color:var(--text-muted);cursor:pointer;transition:all .15s}.btn-icon-sm:hover{background:var(--bg-input);color:var(--text-primary)}.btn-icon-sm.has-note{color:var(--accent)}.btn-small{padding:6px 12px;font-size:.8rem}.header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:56px;background:var(--bg-secondary);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:32px}.header-logo{display:flex;align-items:center;gap:8px;color:var(--accent);font-weight:600;font-size:1rem;cursor:pointer}.header-nav{display:flex;gap:4px}.nav-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;background:transparent;border:none;border-radius:var(--radius);color:var(--text-secondary);font-size:.825rem;font-weight:500;cursor:pointer;transition:all .15s}.nav-btn:hover{background:var(--bg-input);color:var(--text-primary)}.nav-btn.active{background:var(--accent-dim);color:var(--accent)}.header-right{display:flex;align-items:center;gap:12px}.header-user{display:flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:.825rem}.main-content{flex:1;max-width:900px;width:100%;margin:0 auto;padding:24px}.dashboard-header{margin-bottom:24px}.dashboard-date{display:flex;align-items:center;gap:8px;font-size:1.1rem;font-weight:500;margin-bottom:16px;color:var(--text-primary)}.dashboard-progress{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.progress-text{display:flex;justify-content:space-between;font-size:.825rem;color:var(--text-secondary);margin-bottom:8px}.progress-pct{color:var(--accent);font-weight:600}.progress-bar{height:8px;background:var(--bg-input);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:4px;transition:width .4s ease}.habit-cards{display:flex;flex-direction:column;gap:12px}.habit-card{background:var(--bg-card);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius);padding:16px;transition:all .15s}.habit-card:hover{background:var(--bg-card-hover)}.habit-card.completed{opacity:.7}.habit-card.completed .habit-name{text-decoration:line-through}.habit-card-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.habit-card-info{display:flex;gap:10px;align-items:flex-start}.habit-icon{font-size:1.25rem;line-height:1}.habit-name{font-size:.95rem;font-weight:600}.habit-desc{font-size:.8rem;color:var(--text-secondary);margin-top:2px}.streak-badge{display:flex;align-items:center;gap:4px;padding:4px 8px;background:#f59e0b20;color:var(--warning);border-radius:12px;font-size:.75rem;font-weight:600}.habit-card-bottom{display:flex;justify-content:space-between;align-items:center}.habit-meta{display:flex;gap:8px}.frequency-badge,.target-badge{font-size:.7rem;padding:3px 8px;border-radius:10px;background:var(--bg-input);color:var(--text-secondary)}.checkin-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.checkin-toggle{width:36px;height:36px;border-radius:50%;border:2px solid var(--border);background:transparent;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.checkin-toggle:hover{border-color:var(--accent)}.checkin-toggle.checked{background:var(--accent);border-color:var(--accent);color:#0a0a0f}.checkin-empty{width:12px;height:12px;border-radius:50%;border:2px solid var(--text-muted)}.value-input-row{display:flex;align-items:center;gap:6px}.value-input{width:70px;padding:6px 8px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:.85rem;text-align:center}.value-input:focus{border-color:var(--accent);outline:none}.value-unit{font-size:.75rem;color:var(--text-secondary)}.note-input-row{width:100%;margin-top:8px}.note-input-row input{width:100%;padding:6px 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:.8rem}.note-input-row input:focus{border-color:var(--accent);outline:none}.habit-list-page{display:flex;flex-direction:column;gap:16px}.page-header{display:flex;justify-content:space-between;align-items:center}.page-header h2{font-size:1.2rem;font-weight:600}.filter-tabs{display:flex;gap:4px;background:var(--bg-secondary);padding:4px;border-radius:var(--radius);width:fit-content}.filter-tab{padding:6px 16px;background:transparent;border:none;border-radius:6px;color:var(--text-secondary);font-size:.825rem;cursor:pointer;transition:all .15s}.filter-tab:hover{color:var(--text-primary)}.filter-tab.active{background:var(--accent-dim);color:var(--accent)}.habit-manage-list{display:flex;flex-direction:column;gap:8px}.habit-manage-item{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius)}.habit-manage-item.archived{opacity:.6}.habit-manage-info{display:flex;gap:10px;align-items:center}.habit-manage-info h3{font-size:.9rem;font-weight:600}.habit-manage-meta{display:flex;gap:10px;margin-top:4px;font-size:.75rem;color:var(--text-secondary)}.streak-inline{display:inline-flex;align-items:center;gap:3px;color:var(--warning)}.habit-manage-actions{display:flex;gap:4px}.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:200;animation:fadeIn .15s ease}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;animation:slideUp .2s ease}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border)}.modal-header h2{font-size:1.1rem;font-weight:600}.modal-body{padding:24px;display:flex;flex-direction:column;gap:16px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding-top:8px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.8rem;font-weight:500;color:var(--text-secondary)}.form-group input,.form-group select,.form-group textarea{padding:10px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:.875rem;font-family:inherit}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);outline:none}.form-group select{cursor:pointer}.form-row{display:flex;gap:12px}.form-row .form-group{flex:1}.form-error{background:#ef444420;color:var(--danger);padding:10px 14px;border-radius:var(--radius);font-size:.825rem;border:1px solid #ef444440}.color-picker,.icon-picker{display:flex;gap:8px;flex-wrap:wrap}.color-option{width:32px;height:32px;border-radius:50%;border:3px solid transparent;cursor:pointer;transition:all .15s}.color-option:hover{transform:scale(1.15)}.color-option.selected{border-color:var(--text-primary);box-shadow:0 0 0 2px var(--bg-secondary)}.icon-option{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);border:2px solid transparent;background:var(--bg-input);font-size:1.1rem;cursor:pointer;transition:all .15s}.icon-option:hover{border-color:var(--border)}.icon-option.selected{border-color:var(--accent);background:var(--accent-dim)}.stats-page{display:flex;flex-direction:column;gap:24px}.stats-overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}.stat-icon{color:var(--accent);margin-bottom:8px;display:flex;justify-content:center}.stat-value{font-size:1.5rem;font-weight:700}.stat-label{font-size:.75rem;color:var(--text-secondary);margin-top:4px}.section-title{font-size:1rem;font-weight:600;color:var(--text-secondary)}.habit-stats-list{display:flex;flex-direction:column;gap:8px}.habit-stats-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.habit-stats-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;cursor:pointer;border-left:4px solid var(--accent);transition:background .15s}.habit-stats-header:hover{background:var(--bg-card-hover)}.habit-stats-info{display:flex;gap:10px;align-items:center}.habit-stats-info h3{font-size:.9rem;font-weight:600}.habit-stats-meta{display:flex;gap:10px;margin-top:4px;font-size:.75rem;color:var(--text-secondary)}.archived-badge{padding:1px 6px;border-radius:4px;background:var(--text-muted);color:var(--bg-primary);font-size:.65rem;font-weight:600}.habit-stats-detail{padding:16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:12px}.detail-row{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-secondary)}.detail-row span:last-child{color:var(--text-primary);font-weight:500}.calendar-heatmap{margin-top:8px}.calendar-nav{display:flex;align-items:center;gap:12px;margin-bottom:12px}.calendar-year{font-size:.85rem;font-weight:600}.calendar-grid-wrapper{display:flex;gap:8px}.calendar-day-labels{display:flex;flex-direction:column;gap:2px;padding-top:20px}.day-label{height:11px;font-size:.6rem;color:var(--text-muted);line-height:11px}.calendar-scroll{overflow-x:auto;flex:1}.calendar-month-labels{display:grid;height:18px;margin-bottom:2px}.month-label{font-size:.6rem;color:var(--text-secondary)}.calendar-grid{display:grid;grid-template-rows:repeat(7,11px);grid-auto-flow:column;gap:2px}.calendar-cell{width:11px;height:11px;border-radius:2px}.calendar-cell.empty{background:transparent}.calendar-cell.unfilled{background:var(--bg-input)}.calendar-cell.filled{opacity:.85}.calendar-cell.filled:hover{opacity:1;outline:1px solid var(--text-primary)}.calendar-loading{font-size:.8rem;color:var(--text-muted);padding:16px 0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.header{padding:0 16px}.header-left{gap:16px}.header-logo span,.nav-btn span{display:none}.main-content{padding:16px}.form-row{flex-direction:column;gap:16px}.stats-overview{grid-template-columns:repeat(2,1fr)}.habit-card-bottom,.habit-manage-item{flex-direction:column;gap:12px;align-items:flex-start}.habit-manage-actions{align-self:flex-end}}