/* Phase 10: extracted from base_user.html. */
* { margin: 0; padding: 0; box-sizing: border-box; }

        html {
            overflow-x: clip;
        }
        
        :root {
            --primary: #667eea;
            --primary-dark: #764ba2;
            --success: #22c55e;
            --warning: #f59e0b;
            --danger: #ef4444;
            --info: #0ea5e9;
            --bg: #f5f5f5;
            --card: #ffffff;
            --text: #1f2937;
            --text-muted: #526071;
            --border: #d5dbea;
            --border-strong: #b8c2d8;
            --surface-muted: #f7f8fc;
            --card-shadow: 0 12px 34px rgba(31, 41, 55, 0.10);
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.5;
            font-size: 14px;
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            background:
                radial-gradient(circle at 8% 15%, rgba(102, 126, 234, 0.13), transparent 28rem),
                radial-gradient(circle at 92% 82%, rgba(118, 75, 162, 0.12), transparent 32rem),
                var(--bg);
        }
        
        /* Animated Background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .bg-animation::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(
                45deg,
                rgba(102, 126, 234, 0.08) 0%,
                rgba(118, 75, 162, 0.04) 25%,
                rgba(255, 255, 255, 0.02) 50%,
                rgba(118, 75, 162, 0.07) 75%,
                rgba(102, 126, 234, 0.08) 100%
            );
            animation: bgRotate 30s linear infinite;
        }
        
        .bg-animation::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(
                circle at 30% 70%,
                rgba(102, 126, 234, 0.14) 0%,
                transparent 50%
            ),
            radial-gradient(
                circle at 70% 30%,
                rgba(118, 75, 162, 0.13) 0%,
                transparent 50%
            );
            animation: bgFloat 20s ease-in-out infinite;
        }
        
        @keyframes bgRotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        @keyframes bgFloat {
            0%, 100% { transform: translate(0, 0) scale(1); }
            25% { transform: translate(2%, 3%) scale(1.05); }
            50% { transform: translate(-1%, 2%) scale(0.95); }
            75% { transform: translate(3%, -1%) scale(1.02); }
        }
        
        /* Header - Kompakt & Modern */
        .header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 16px 20px;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
        }
        
        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        
        .logo {
            font-size: 24px;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .nav-links {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .nav-links a {
            color: rgba(255,255,255,0.95);
            text-decoration: none;
            font-size: 15px;
            padding: 10px 16px;
            border-radius: 10px;
            transition: all 0.3s ease;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .nav-links a:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-1px);
        }
        
        .user-badge {
            background: rgba(255,255,255,0.2);
            padding: 8px 16px;
            border-radius: 25px;
            font-size: 14px;
            font-weight: 600;
            backdrop-filter: blur(10px);
        }
        
        /* Main Container */
        .main {
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
            padding: 24px;
            position: relative;
            z-index: 1;
            flex: 1;
        }
        
        /* Cards */
        .card {
            background: var(--card);
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: var(--card-shadow);
            transition: all 0.3s ease;
            border: 2px solid var(--border);
        }
        
        .card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
            border-color: var(--primary);
        }
        
        .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
        }
        
        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
        }
        
        .btn-secondary {
            background: var(--card);
            color: var(--text);
            border: 2px solid var(--border);
        }
        
        .btn-secondary:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        
        .btn-danger {
            background: var(--danger);
            color: white;
        }
        
        /* Form Elements */
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text);
            font-size: 14px;
        }
        
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 15px;
            transition: all 0.2s;
            font-family: inherit;
            background: var(--card);
            color: var(--text);
        }
        
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        
        /* Alerts */
        .alert {
            padding: 14px 18px;
            border-radius: 10px;
            margin-bottom: 20px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .alert-success {
            background: #dcfce7;
            color: #166534;
            border-left: 4px solid var(--success);
        }
        
        .alert-error {
            background: #fee2e2;
            color: #991b1b;
            border-left: 4px solid var(--danger);
        }
        
        .alert-warning {
            background: #fef3c7;
            color: #92400e;
            border-left: 4px solid var(--warning);
        }
        
        .alert-info {
            background: #dbeafe;
            color: #1e40af;
            border-left: 4px solid var(--info);
        }
        
        /* Badges */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        
        .badge.success { background: #dcfce7; color: #166534; }
        .badge.warning { background: #fef3c7; color: #92400e; }
        .badge.danger { background: #fee2e2; color: #991b1b; }
        .badge.info { background: #dbeafe; color: #1e40af; }
        
        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-5px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        @keyframes pulse-glow {
            0%, 100% { 
                transform: scale(1);
                text-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
            }
            50% { 
                transform: scale(1.05);
                text-shadow: 0 0 40px rgba(102, 126, 234, 0.6);
            }
        }
        
        @keyframes pulse-success {
            0%, 100% { transform: scale(1); text-shadow: 0 0 20px rgba(34, 197, 94, 0.3); }
            50% { transform: scale(1.08); text-shadow: 0 0 40px rgba(34, 197, 94, 0.6); }
        }
        
        @keyframes pulse-warning {
            0%, 100% { transform: scale(1); text-shadow: 0 0 20px rgba(245, 158, 11, 0.3); }
            50% { transform: scale(1.1); text-shadow: 0 0 50px rgba(245, 158, 11, 0.7); }
        }
        
        @keyframes pulse-danger {
            0%, 100% { transform: scale(1); text-shadow: 0 0 20px rgba(239, 68, 68, 0.4); }
            50% { transform: scale(1.12); text-shadow: 0 0 60px rgba(239, 68, 68, 0.8); }
        }
        
        .fade-in {
            animation: fadeIn 0.3s ease;
        }

        @media (prefers-reduced-motion: reduce) {
            .bg-animation::before,
            .bg-animation::after,
            .fade-in,
            .float {
                animation: none !important;
            }
        }
        
        .float {
            animation: float 3s ease-in-out infinite;
        }
        
        /* Utility */
        .text-success { color: var(--success); }
        .text-warning { color: var(--warning); }
        .text-danger { color: var(--danger); }
        .text-muted { color: var(--text-muted); }
        
        /* Mobile Responsive */
        @media (max-width: 768px) {
            .main {
                padding: 16px;
            }
            
            .header-content {
                flex-wrap: wrap;
                gap: 12px;
            }
            
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: center;
                flex-wrap: wrap;
                gap: 8px;
            }
            
            .nav-links a {
                font-size: 13px;
                padding: 6px 12px;
            }
            
            .card {
                padding: 20px;
            }
        }
        
        @media (max-width: 480px) {
            .card {
                padding: 16px;
            }
            
            .card-title {
                font-size: 16px;
            }
        }