:root{--color-primary: #F97316;--color-primary-light: #FFF7ED;--color-primary-hover: #EA580C;--color-primary-muted: #FDBA74;--color-bg: #FAFAF8;--color-surface: #FFFFFF;--color-text: #1C1917;--color-text-secondary: #78716C;--color-text-tertiary: #A8A29E;--color-border: #E7E5E4;--color-border-light: #F5F5F4;--color-success: #22C55E;--color-overdue: #EF4444;--color-overdue-light: #FEF2F2;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;--font-xs: 11px;--font-sm: 13px;--font-base: 15px;--font-lg: 17px;--font-xl: 22px;--font-2xl: 28px;--font-3xl: 34px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 100px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 2px 8px rgba(0,0,0,.06);--shadow-lg: 0 8px 24px rgba(0,0,0,.08);--shadow-xl: 0 16px 48px rgba(0,0,0,.12);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--header-height: 56px;--bottom-nav-height: 82px;--sidebar-width: 280px;--safe-area-bottom: env(safe-area-inset-bottom, 0px)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-family);font-size:var(--font-base);color:var(--color-text);background-color:var(--color-bg);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overscroll-behavior:none}button{font-family:inherit;font-size:inherit;border:none;cursor:pointer;background:none;color:inherit}input,textarea,select{font-family:inherit;font-size:var(--font-base);border:none;outline:none;background:none;color:var(--color-text)}.login-screen{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-lg);background:linear-gradient(160deg,#fff7ed,#fafaf8,#fff7ed)}.login-logo{width:80px;height:80px;background:linear-gradient(135deg,#f97316,#ea580c);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-lg);box-shadow:0 8px 32px #f973164d}.login-logo span{font-size:36px;font-weight:700;color:#fff}.login-title{font-size:var(--font-2xl);font-weight:700;margin-bottom:var(--space-xs)}.login-subtitle{font-size:var(--font-sm);color:var(--color-text-secondary);margin-bottom:var(--space-xl)}.login-form{width:100%;max-width:320px;display:flex;flex-direction:column;gap:var(--space-md)}.login-input{width:100%;padding:14px 18px;background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-base);transition:border-color var(--transition-fast)}.login-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #f973161a}.login-input::placeholder{color:var(--color-text-tertiary)}.login-error{color:var(--color-overdue);font-size:var(--font-sm);text-align:center}.btn-primary{padding:14px 24px;background:linear-gradient(135deg,#f97316,#ea580c);color:#fff;font-weight:600;font-size:var(--font-base);border-radius:var(--radius-md);transition:all var(--transition-fast);box-shadow:0 4px 12px #f973164d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #f9731666}.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px #f973164d}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.app-layout{display:flex;flex-direction:column;min-height:100dvh}.header{position:sticky;top:0;z-index:100;background:#fafaf8d9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border-light);padding:var(--space-md) var(--space-lg);padding-top:max(var(--space-md),env(safe-area-inset-top))}.header-content{display:flex;align-items:center;justify-content:space-between;max-width:600px;margin:0 auto}.header-title{font-size:var(--font-2xl);font-weight:700;letter-spacing:-.5px}.header-subtitle{font-size:var(--font-xs);color:var(--color-text-secondary);font-weight:500;margin-top:2px}.header-actions{display:flex;gap:var(--space-sm)}.header-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);transition:background var(--transition-fast);font-size:18px}.header-btn:hover{background:var(--color-border-light)}.main-content{flex:1;padding:var(--space-md) var(--space-lg);padding-bottom:calc(var(--bottom-nav-height) + var(--safe-area-bottom) + 80px);max-width:600px;margin:0 auto;width:100%}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:100;background:#ffffffeb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid var(--color-border-light);padding-bottom:var(--safe-area-bottom)}.bottom-nav-inner{display:flex;align-items:center;justify-content:space-around;max-width:600px;margin:0 auto;padding:var(--space-sm) 0}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);transition:all var(--transition-fast);min-width:56px;position:relative}.nav-item.active{color:var(--color-primary)}.nav-item:not(.active){color:var(--color-text-tertiary)}.nav-icon{font-size:22px;line-height:1}.nav-label{font-size:10px;font-weight:600;letter-spacing:.2px}.nav-badge{position:absolute;top:0;right:4px;background:var(--color-overdue);color:#fff;font-size:9px;font-weight:700;min-width:16px;height:16px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;padding:0 4px}.fab{position:fixed;bottom:calc(var(--bottom-nav-height) + var(--safe-area-bottom) + 12px);right:20px;width:56px;height:56px;border-radius:var(--radius-full);background:linear-gradient(135deg,#f97316,#ea580c);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px #f9731666;transition:all var(--transition-fast);z-index:90}.fab:hover{transform:scale(1.08);box-shadow:0 8px 28px #f9731680}.fab:active{transform:scale(.95)}.task-list{display:flex;flex-direction:column;gap:2px}.task-section-label{font-size:var(--font-xs);font-weight:700;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.8px;padding:var(--space-lg) 0 var(--space-sm)}.task-section-label:first-child{padding-top:var(--space-sm)}.task-empty{text-align:center;padding:var(--space-2xl) var(--space-lg);color:var(--color-text-tertiary)}.task-empty-icon{font-size:48px;margin-bottom:var(--space-md);opacity:.5}.task-empty-text{font-size:var(--font-sm)}.task-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--color-surface);border-radius:var(--radius-md);transition:all var(--transition-fast);position:relative;overflow:hidden;-webkit-user-select:none;user-select:none}.task-item:active{background:var(--color-border-light)}.task-item.completing{animation:slideComplete .4s ease forwards}@keyframes slideComplete{0%{transform:translate(0);opacity:1}to{transform:translate(60px);opacity:0;max-height:0;padding:0;margin:0}}.task-checkbox{width:24px;height:24px;min-width:24px;border-radius:var(--radius-full);border:2px solid var(--color-border);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);cursor:pointer}.task-checkbox:hover{border-color:var(--color-primary-muted)}.task-checkbox.checked{background:var(--color-primary);border-color:var(--color-primary)}.task-checkbox.checked:after{content:"✓";color:#fff;font-size:14px;font-weight:700}.task-body{flex:1;min-width:0}.task-title{font-size:var(--font-base);font-weight:500;line-height:1.3;word-wrap:break-word}.task-item.completed .task-title{text-decoration:line-through;color:var(--color-text-tertiary)}.task-meta{display:flex;align-items:center;gap:var(--space-sm);margin-top:3px;flex-wrap:wrap}.task-badge{display:inline-flex;align-items:center;gap:3px;font-size:var(--font-xs);font-weight:600;padding:2px 8px;border-radius:var(--radius-full);white-space:nowrap}.task-badge.date-today{background:var(--color-primary-light);color:var(--color-primary)}.task-badge.date-overdue{background:var(--color-overdue-light);color:var(--color-overdue)}.task-badge.date-future,.task-badge.folder-badge{background:var(--color-border-light);color:var(--color-text-secondary)}.task-actions-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);color:var(--color-text-tertiary);font-size:18px;transition:all var(--transition-fast)}.task-actions-btn:hover{background:var(--color-border-light);color:var(--color-text-secondary)}.task-actions-menu{position:fixed;z-index:200;background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);overflow:hidden;min-width:200px;animation:menuAppear .15s ease}@keyframes menuAppear{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.menu-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);font-size:var(--font-sm);font-weight:500;width:100%;text-align:left;transition:background var(--transition-fast)}.menu-item:hover{background:var(--color-border-light)}.menu-item.destructive{color:var(--color-overdue)}.menu-icon{font-size:16px;width:20px;text-align:center}.menu-divider{height:1px;background:var(--color-border-light);margin:var(--space-xs) 0}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:150;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.bottom-sheet{position:fixed;bottom:0;left:0;right:0;z-index:200;background:var(--color-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;box-shadow:var(--shadow-xl);padding:var(--space-lg);padding-bottom:calc(var(--space-lg) + var(--safe-area-bottom));animation:sheetSlideUp .3s ease;max-height:85dvh;overflow-y:auto}@keyframes sheetSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-handle{width:36px;height:4px;background:var(--color-border);border-radius:var(--radius-full);margin:0 auto var(--space-lg)}.sheet-title{font-size:var(--font-lg);font-weight:700;margin-bottom:var(--space-lg)}.sheet-input{width:100%;padding:14px 16px;background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-base);transition:border-color var(--transition-fast);margin-bottom:var(--space-md)}.sheet-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #f973161a}.sheet-label{font-size:var(--font-sm);font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--space-sm);display:block}.quick-dates{display:flex;gap:var(--space-sm);flex-wrap:wrap;margin-bottom:var(--space-md)}.quick-date-btn{padding:8px 14px;border-radius:var(--radius-full);font-size:var(--font-sm);font-weight:600;background:var(--color-bg);color:var(--color-text-secondary);border:1.5px solid var(--color-border);transition:all var(--transition-fast)}.quick-date-btn:hover{border-color:var(--color-primary-muted);background:var(--color-primary-light)}.quick-date-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.folder-select{width:100%;padding:14px 40px 14px 16px;background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-base);color:var(--color-text);margin-bottom:var(--space-md);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2378716C' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;transition:border-color var(--transition-fast)}.folder-select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #f973161a}.time-row{display:flex;align-items:center;gap:var(--space-md);margin-bottom:var(--space-md)}.time-toggle{padding:8px 14px;border-radius:var(--radius-full);font-size:var(--font-sm);font-weight:600;background:var(--color-bg);color:var(--color-text-secondary);border:1.5px solid var(--color-border);transition:all var(--transition-fast)}.time-toggle.active{background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary)}.time-input{padding:8px 14px;background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-base);color:var(--color-text)}.time-input:focus{border-color:var(--color-primary)}.sheet-actions{display:flex;gap:var(--space-md);margin-top:var(--space-lg)}.btn-secondary{flex:1;padding:14px;background:var(--color-bg);color:var(--color-text-secondary);font-weight:600;border-radius:var(--radius-md);border:1.5px solid var(--color-border);transition:all var(--transition-fast)}.btn-secondary:hover{background:var(--color-border-light)}.sheet-actions .btn-primary{flex:1}.projects-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.folder-list{display:flex;flex-direction:column;gap:var(--space-sm)}.folder-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--color-surface);border-radius:var(--radius-md);transition:all var(--transition-fast);cursor:pointer}.folder-item:hover{background:var(--color-border-light)}.folder-item:active{background:var(--color-border)}.folder-icon{font-size:20px}.folder-name{flex:1;font-weight:500}.folder-count{font-size:var(--font-sm);color:var(--color-text-tertiary);font-weight:500}.folder-actions{display:flex;gap:var(--space-xs)}.folder-action-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);color:var(--color-text-tertiary);font-size:14px;transition:all var(--transition-fast)}.folder-action-btn:hover{background:var(--color-border-light);color:var(--color-text-secondary)}.add-folder-btn{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md);color:var(--color-primary);font-weight:600;font-size:var(--font-sm);border-radius:var(--radius-md);transition:background var(--transition-fast);width:100%}.add-folder-btn:hover{background:var(--color-primary-light)}.alert-toast{position:fixed;top:max(20px,env(safe-area-inset-top));left:50%;transform:translate(-50%);z-index:300;background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:var(--space-md) var(--space-lg);display:flex;align-items:center;gap:var(--space-md);animation:toastIn .3s ease;max-width:90vw;border-left:4px solid var(--color-primary)}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.alert-toast-text{font-weight:600;font-size:var(--font-sm)}.alert-toast-dismiss{padding:6px 12px;background:var(--color-primary);color:#fff;border-radius:var(--radius-full);font-size:var(--font-xs);font-weight:700}.confirm-dialog{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:250;background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:var(--space-xl);width:90%;max-width:340px;text-align:center;animation:dialogAppear .2s ease}@keyframes dialogAppear{0%{opacity:0;transform:translate(-50%,-50%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.confirm-title{font-size:var(--font-lg);font-weight:700;margin-bottom:var(--space-sm)}.confirm-message{font-size:var(--font-sm);color:var(--color-text-secondary);margin-bottom:var(--space-lg)}.confirm-actions{display:flex;gap:var(--space-md)}.confirm-actions .btn-secondary,.confirm-actions .btn-primary{flex:1}.btn-danger{flex:1;padding:14px;background:var(--color-overdue);color:#fff;font-weight:600;border-radius:var(--radius-md);transition:all var(--transition-fast)}@media(min-width:768px){.app-layout{flex-direction:row}.sidebar{width:var(--sidebar-width);height:100dvh;position:sticky;top:0;border-right:1px solid var(--color-border-light);background:var(--color-surface);padding:var(--space-lg);overflow-y:auto;display:flex;flex-direction:column}.sidebar-logo{display:flex;align-items:center;gap:var(--space-md);padding-bottom:var(--space-lg);border-bottom:1px solid var(--color-border-light);margin-bottom:var(--space-lg)}.sidebar-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,#f97316,#ea580c);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}.sidebar-logo-text{font-size:var(--font-lg);font-weight:700}.sidebar-section-title{font-size:var(--font-xs);font-weight:700;color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:var(--space-sm);margin-top:var(--space-lg)}.sidebar-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-secondary)}.sidebar-item:hover{background:var(--color-border-light);color:var(--color-text)}.sidebar-item.active{background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.sidebar-icon{font-size:18px;width:24px;text-align:center}.bottom-nav{display:none}.main-wrapper{flex:1;min-width:0}.fab{bottom:24px;right:24px}.main-content{padding-bottom:var(--space-2xl)}}@media(max-width:767px){.sidebar{display:none}}