:root{--bg-primary: #f5f7fa;--bg-secondary: white;--text-primary: #202124;--text-secondary: #5f6368;--border-color: #e8eaed;--border-input: #dadce0;--accent-color: #1a73e8;--accent-hover: #1765cc;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .15);--error-bg: #fce8e6;--error-text: #c5221f;--error-border: #d93025;--hover-bg: #f1f3f4;--active-bg: #e8f0fe;--table-hover: #f8f9fa}[data-theme=dark]{--bg-primary: #1a1a1a;--bg-secondary: #2d2d2d;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--border-color: #3c4043;--border-input: #5f6368;--accent-color: #8ab4f8;--accent-hover: #aecbfa;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--error-bg: #3c2929;--error-text: #f28b82;--error-border: #c5221f;--hover-bg: #3c4043;--active-bg: #1f3a5f;--table-hover: #3c4043}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);min-height:100vh;color:var(--text-primary);transition:background-color .3s ease,color .3s ease}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:20px}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px}.login-box{background:var(--bg-secondary);padding:40px;border-radius:16px;box-shadow:var(--shadow-md);width:100%;max-width:400px;border:1px solid var(--border-color)}.login-logo{display:flex;justify-content:center;margin-bottom:24px}.login-logo img{height:80px;width:auto;max-width:200px}.login-box h1{color:var(--accent-color);margin-bottom:10px;text-align:center;font-weight:600}.login-box p{color:var(--text-secondary);margin-bottom:30px;text-align:center}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;color:var(--text-primary);font-weight:500;font-size:14px}.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 14px;border:1px solid var(--border-input);border-radius:8px;font-size:14px;transition:all .2s;background:var(--bg-secondary);color:var(--text-primary)}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #1a73e81a}.form-group textarea{min-height:80px;resize:vertical}.btn{padding:10px 24px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;letter-spacing:.25px}.btn-primary{background:var(--accent-color);color:#fff;width:100%}.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-sm)}.btn-secondary{background:#5f6368;color:#fff}.btn-secondary:hover{background:#4a4d50}.btn-danger{background:#d93025;color:#fff}.btn-danger:hover{background:#c5221f}.btn-success{background:#1e8e3e;color:#fff}.btn-success:hover{background:#188038}.error-message{background:var(--error-bg);color:var(--error-text);padding:12px 16px;border-radius:8px;margin-bottom:20px;border-left:4px solid var(--error-border);font-size:14px}.navbar{background:var(--bg-secondary);box-shadow:var(--shadow-sm);padding:16px 0;margin-bottom:0;border-bottom:1px solid var(--border-color)}.navbar-content{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px}.navbar-brand{display:flex;align-items:center}.navbar-logo{height:48px;width:auto}.navbar-nav{display:flex;gap:15px;list-style:none;flex-wrap:wrap;align-items:center}.nav-link{color:var(--text-secondary);text-decoration:none;padding:8px 16px;border-radius:8px;transition:all .2s;font-weight:500;font-size:14px}.nav-link:hover{background:var(--hover-bg);color:var(--text-primary)}.nav-link.active{background:var(--active-bg);color:var(--accent-color)}.navbar-user{display:flex;align-items:center;gap:15px}.user-info{color:var(--text-secondary);font-size:14px}.user-badge{display:inline-block;padding:3px 10px;background:var(--accent-color);color:#fff;border-radius:16px;font-size:11px;font-weight:600;margin-left:8px;text-transform:uppercase;letter-spacing:.5px}.dashboard{background:var(--bg-secondary);border-radius:12px;padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);margin-top:24px}.dashboard h2{color:var(--text-primary);margin-bottom:8px;font-weight:500;font-size:24px}.demo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:30px}.demo-card{background:var(--bg-secondary);border:1px solid var(--border-input);border-radius:12px;padding:24px;transition:all .2s;cursor:pointer;text-decoration:none;color:inherit;display:block}.demo-card:hover{border-color:var(--accent-color);box-shadow:var(--shadow-md);transform:translateY(-2px)}.demo-card-icon{font-size:48px;margin-bottom:16px;display:block}.demo-card h3{color:var(--text-primary);margin-bottom:8px;font-weight:500;font-size:18px}.demo-card p{color:var(--text-secondary);font-size:14px;line-height:1.5}.admin-section{background:var(--bg-secondary);border-radius:12px;padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color);margin-top:24px;margin-bottom:24px}.admin-section h2{color:var(--text-primary);margin-bottom:24px;display:flex;justify-content:space-between;align-items:center;font-weight:500;font-size:24px}.table{width:100%;border-collapse:collapse;margin-top:20px}.table th,.table td{padding:14px 12px;text-align:left;border-bottom:1px solid var(--border-color)}.table th{background:var(--table-hover);font-weight:500;color:var(--text-primary);font-size:13px;text-transform:uppercase;letter-spacing:.5px}.table tr:hover{background:var(--table-hover)}.table-actions{display:flex;gap:8px}.btn-sm{padding:6px 12px;font-size:12px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.modal{background:var(--bg-secondary);border-radius:16px;padding:32px;max-width:500px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal h3{color:var(--text-primary);margin-bottom:24px;font-weight:500;font-size:20px}.modal-actions{display:flex;gap:10px;margin-top:20px}.modal-actions .btn{flex:1}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state-icon{font-size:64px;margin-bottom:20px;opacity:.4}.empty-state h3{color:var(--text-primary);margin-bottom:10px;font-weight:500}.empty-state p{margin-bottom:20px}.theme-toggle{background:var(--hover-bg);border:1px solid var(--border-color);padding:8px 12px;border-radius:8px;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:all .2s}.theme-toggle:hover{background:var(--accent-color);border-color:var(--accent-color);transform:scale(1.05)}@media (max-width: 768px){.navbar-content{flex-direction:column}.navbar-nav{width:100%;justify-content:center}.demo-grid{grid-template-columns:1fr}.table{font-size:14px}.table th,.table td{padding:8px}}