:root{--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#dbeafe;--secondary:#64748b;--success:#16a34a;--success-light:#dcfce7;--warning:#eab308;--warning-light:#fef9c3;--danger:#dc2626;--danger-light:#fee2e2;--info:#0ea5e9;--info-light:#e0f2fe;--bg:#f8fafc;--bg-card:#fff;--bg-sidebar:#1e293b;--bg-sidebar-hover:#334155;--bg-input:#fff;--text:#1e293b;--text-light:#64748b;--text-lighter:#94a3b8;--text-sidebar:#e2e8f0;--text-white:#fff;--border:#e2e8f0;--border-focus:#2563eb;--shadow-sm:0 1px 2px #0000000d;--shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;--shadow-md:0 4px 6px #00000012,0 2px 4px #0000000f;--shadow-lg:0 10px 15px #0000001a,0 4px 6px #0000000d;--radius-sm:6px;--radius:8px;--radius-lg:12px;--radius-xl:16px;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code",monospace;--habit-primary:#059669;--habit-bg:#f0fdf4;--habit-border:#bbf7d0;--habit-accent:#10b981;--todo-primary:#7c3aed;--todo-bg:#f5f3ff;--todo-border:#ddd6fe;--todo-accent:#8b5cf6}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100vw;font-family:var(--font-sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.btn{border-radius:var(--radius);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:var(--text-white)}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{color:var(--text);border:1px solid var(--border);background:0 0}.btn-secondary:hover{background:var(--bg);border-color:var(--text-light)}.btn-success{background:var(--success);color:var(--text-white)}.btn-success:hover{background:#15803d}.btn-danger{background:var(--danger);color:var(--text-white)}.btn-danger:hover{background:#b91c1c}.btn-sm{padding:6px 12px;font-size:13px}.btn-lg{padding:14px 28px;font-size:16px}.input-group{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.input-group label{color:var(--text);font-size:14px;font-weight:600}.input-field{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);width:100%;color:var(--text);padding:10px 14px;font-size:14px;transition:border-color .2s}.input-field:focus{border-color:var(--border-focus);outline:none;box-shadow:0 0 0 3px #2563eb1a}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}.page-title{color:var(--text);margin-bottom:24px;font-size:24px;font-weight:700}.page-subtitle{color:var(--text-light);margin-top:-16px;margin-bottom:24px;font-size:14px}.badge{border-radius:9999px;align-items:center;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--success-light);color:var(--success)}.badge-warning{background:var(--warning-light);color:#a16207}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-info{background:var(--info-light);color:var(--info)}.empty-state{text-align:center;color:var(--text-light);padding:48px 24px}.empty-state h3{color:var(--text);margin-bottom:8px;font-size:18px}.loading-spinner{justify-content:center;align-items:center;padding:48px;display:flex}.loading-spinner:after{content:"";border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.page-title{font-size:20px}.card{padding:16px}}