:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #242424;--bg-hover: #2a2a2a;--bg-active: #333333;--text-primary: #e8e8e8;--text-secondary: #999999;--text-muted: #666666;--accent: #6c63ff;--accent-hover: #7b73ff;--accent-light: rgba(108, 99, 255, .15);--accent-border: rgba(108, 99, 255, .3);--success: #4ade80;--success-bg: rgba(74, 222, 128, .1);--error: #f87171;--error-bg: rgba(248, 113, 113, .1);--whatsapp: #25d366;--whatsapp-hover: #20bd5a;--border: #2a2a2a;--border-light: #333333;--radius: 8px;--radius-lg: 12px;--radius-full: 50px;--shadow: 0 2px 8px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}input,button,textarea{font-family:inherit;font-size:inherit}.spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:16px;color:var(--text-secondary)}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;background:radial-gradient(circle at 20% 50%,rgba(108,99,255,.08) 0%,transparent 50%),radial-gradient(circle at 80% 50%,rgba(108,99,255,.05) 0%,transparent 50%),var(--bg-primary)}.auth-card{width:100%;max-width:400px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 32px;box-shadow:var(--shadow-lg)}.auth-header{text-align:center;margin-bottom:32px;color:var(--accent)}.auth-header h1{font-size:28px;font-weight:700;margin:12px 0 8px;color:var(--text-primary)}.auth-header p{color:var(--text-secondary);font-size:14px}.auth-form{display:flex;flex-direction:column;gap:16px}.input-group{display:flex;flex-direction:column;gap:6px}.input-group label{font-size:13px;font-weight:500;color:var(--text-secondary)}.input-group input{padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;transition:border-color .2s,box-shadow .2s;outline:none}.input-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.input-group input::placeholder{color:var(--text-muted)}.alert{padding:10px 14px;border-radius:var(--radius);font-size:13px;line-height:1.4}.alert-error{background:var(--error-bg);color:var(--error);border:1px solid rgba(248,113,113,.2)}.alert-success{background:var(--success-bg);color:var(--success);border:1px solid rgba(74,222,128,.2)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--text-secondary);padding:6px 10px}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-sm{padding:6px 10px;font-size:13px}.btn-link{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:13px;padding:12px;width:100%;text-align:center;transition:color .2s}.btn-link:hover{color:var(--accent)}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;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:10px;color:var(--accent)}.header-left h1{font-size:18px;font-weight:600;color:var(--text-primary)}.header-right{display:flex;align-items:center;gap:12px}.user-email{font-size:13px;color:var(--text-secondary)}.tabs-bar{display:flex;align-items:center;gap:2px;padding:8px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--border-light) transparent}.tabs-bar::-webkit-scrollbar{height:4px}.tabs-bar::-webkit-scrollbar-track{background:transparent}.tabs-bar::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:2px}.tab-btn{display:flex;align-items:center;gap:6px;padding:6px 14px;border:none;background:transparent;color:var(--text-secondary);border-radius:var(--radius);font-size:13px;cursor:pointer;transition:all .2s;white-space:nowrap;position:relative;-webkit-user-select:none;user-select:none}.tab-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.tab-btn.active{background:var(--accent-light);color:var(--accent);font-weight:500}.tab-btn.tab-add{color:var(--text-muted);padding:6px 10px}.tab-btn.tab-add:hover{color:var(--accent);background:var(--accent-light)}.tab-name{max-width:120px;overflow:hidden;text-overflow:ellipsis}.tab-completion{font-size:11px;color:var(--text-muted);font-family:var(--font-mono)}.tab-actions{display:none;align-items:center;gap:2px;margin-left:4px}.tab-btn:hover .tab-actions{display:flex}.tab-btn:hover .tab-completion{display:none}.tab-action-btn{display:flex;align-items:center;justify-content:center;padding:2px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;border-radius:4px;transition:all .15s}.tab-action-btn:hover{background:var(--bg-active);color:var(--text-primary)}.tab-edit-form{display:flex;align-items:center;gap:4px}.tab-edit-input{width:100px;padding:2px 6px;background:var(--bg-tertiary);border:1px solid var(--accent);border-radius:4px;color:var(--text-primary);font-size:13px;outline:none}.content{flex:1;padding:24px;max-width:900px;width:100%;margin:0 auto}.dashboard-header h2{font-size:24px;font-weight:600}.dashboard-subtitle{color:var(--text-secondary);font-size:14px;margin-top:4px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin:24px 0}.stat-card{display:flex;align-items:center;gap:16px;padding:20px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color .2s}.stat-card:hover{border-color:var(--border-light)}.stat-card.accent{border-color:var(--accent-border);background:linear-gradient(135deg,var(--bg-secondary),var(--accent-light));justify-content:space-between}.stat-icon{color:var(--accent);display:flex;padding:10px;background:var(--accent-light);border-radius:var(--radius)}.stat-value{font-size:28px;font-weight:700;font-family:var(--font-mono);line-height:1}.stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}.stat-info{display:flex;flex-direction:column}.progress-ring{width:56px;height:56px}.progress-ring svg{transform:rotate(-90deg)}.progress-bg{stroke:var(--border)}.progress-fill{stroke:var(--accent);stroke-linecap:round;transition:stroke-dasharray .5s ease}.tabs-overview{margin-top:32px}.tabs-overview h3{font-size:18px;font-weight:600;margin-bottom:16px}.empty-state{text-align:center;padding:48px 20px;color:var(--text-muted)}.empty-state p{margin-top:12px}.empty-hint{font-size:13px;color:var(--text-muted)}.tabs-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.tab-card{padding:20px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .2s}.tab-card:hover{border-color:var(--accent-border);transform:translateY(-1px);box-shadow:var(--shadow)}.tab-card-header{display:flex;align-items:center;justify-content:space-between}.tab-card-header h4{font-size:15px;font-weight:500}.tab-card-arrow{color:var(--text-muted);transition:transform .2s,color .2s}.tab-card:hover .tab-card-arrow{transform:translate(3px);color:var(--accent)}.tab-card-stats{display:flex;justify-content:space-between;font-size:13px;color:var(--text-secondary);margin:12px 0 8px}.tab-card-percent{font-family:var(--font-mono);font-weight:500;color:var(--accent)}.progress-bar{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .4s ease}.task-editor{display:flex;flex-direction:column;gap:16px}.editor-header{display:flex;flex-direction:column;gap:8px}.editor-stats{display:flex;justify-content:space-between;font-size:13px;color:var(--text-secondary)}.editor-percent{font-family:var(--font-mono);font-weight:500;color:var(--accent)}.notepad{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.notepad-lines{display:flex;flex-direction:column}.notepad-line{display:flex;align-items:center;gap:8px;padding:4px 12px;border-bottom:1px solid var(--border);transition:background .15s;min-height:44px}.notepad-line:hover{background:var(--bg-hover)}.notepad-line.completed .task-input{text-decoration:line-through;color:var(--text-muted)}.notepad-line.drag-over{border-top:2px solid var(--accent)}.drag-handle{display:flex;align-items:center;justify-content:center;padding:4px 0;border:none;background:none;color:var(--text-muted);cursor:grab;opacity:0;transition:opacity .15s}.notepad-line:hover .drag-handle{opacity:1}.drag-handle:active{cursor:grabbing}.checkbox{display:flex;align-items:center;justify-content:center;width:20px;height:20px;min-width:20px;border:2px solid var(--border-light);border-radius:4px;background:transparent;cursor:pointer;transition:all .2s;color:#fff;padding:0}.checkbox:hover{border-color:var(--accent)}.checkbox.checked{background:var(--accent);border-color:var(--accent)}.task-input{flex:1;padding:8px 4px;border:none;background:transparent;color:var(--text-primary);font-size:14px;outline:none;font-family:var(--font-sans)}.task-input::placeholder{color:var(--text-muted)}.delete-btn{display:flex;align-items:center;justify-content:center;padding:4px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;border-radius:4px;opacity:0;transition:all .15s}.notepad-line:hover .delete-btn{opacity:1}.delete-btn:hover{background:var(--error-bg);color:var(--error)}.add-task-btn{display:flex;align-items:center;gap:8px;width:100%;padding:12px 16px;border:none;background:transparent;color:var(--text-muted);font-size:14px;cursor:pointer;transition:all .2s}.add-task-btn:hover{background:var(--bg-hover);color:var(--accent)}.notepad-hint{text-align:center;font-size:12px;color:var(--text-muted)}.notepad-hint kbd{display:inline-block;padding:1px 5px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:3px;font-family:var(--font-mono);font-size:11px}.whatsapp-fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--whatsapp);color:#fff;border-radius:50%;box-shadow:0 4px 16px #25d36666;cursor:pointer;transition:all .2s;z-index:1000;text-decoration:none}.whatsapp-fab:hover{background:var(--whatsapp-hover);transform:scale(1.1);box-shadow:0 6px 24px #25d36680}@media(max-width:640px){.auth-card{padding:32px 20px}.content{padding:16px}.stats-grid{grid-template-columns:1fr 1fr;gap:8px}.stat-card{padding:14px;gap:10px}.stat-value{font-size:22px}.tabs-list{grid-template-columns:1fr}.user-email{display:none}.tabs-bar{padding:6px 8px}.tab-btn{padding:6px 10px;font-size:12px}.whatsapp-fab{bottom:16px;right:16px;width:48px;height:48px}}