:root,[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--nav-bg: #ffffff;--text-primary: #1a1a1a;--text-secondary: #666666;--border-color: #e0e0e0;--hover-bg: #f0f0f0;--primary-color: #6366f1;--primary-hover: #4f46e5;--success-color: #22c55e;--warning-color: #f59e0b;--error-color: #ef4444;--card-bg: #ffffff;--card-shadow: 0 1px 3px rgba(0, 0, 0, .1)}[data-theme=dark]{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--nav-bg: #1a1a1a;--text-primary: #f5f5f5;--text-secondary: #a0a0a0;--border-color: #333333;--hover-bg: #252525;--primary-color: #818cf8;--primary-hover: #6366f1;--success-color: #4ade80;--warning-color: #fbbf24;--error-color: #f87171;--card-bg: #1a1a1a;--card-shadow: 0 1px 3px rgba(0, 0, 0, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;transition:background-color .3s ease,color .3s ease}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;margin-bottom:.5em}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{margin-bottom:1rem}a{color:var(--primary-color);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.page{padding:2rem;max-width:1400px;margin:0 auto}.page-header{margin-bottom:2rem}.page-header h1{margin-bottom:.5rem}.page-header .subtitle{color:var(--text-secondary);font-size:1.1rem}.card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:.75rem;padding:1.5rem;box-shadow:var(--card-shadow);transition:all .2s ease}.card:hover{box-shadow:0 4px 12px #00000026}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:.5rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:var(--hover-bg);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--border-color)}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.empty-state .empty-icon{font-size:4rem;margin-bottom:1rem;opacity:.5}.empty-state h3{margin-bottom:.5rem;color:var(--text-primary)}.empty-state p{margin-bottom:1.5rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.5rem;background:var(--bg-primary);color:var(--text-primary);font-size:1rem;transition:border-color .2s ease}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary-color)}@media(max-width:768px){.page{padding:1rem}h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.card-grid{grid-template-columns:1fr}}