:root {
            --primary: #6c49a3;
            --secondary: #f8f9fa;
            --accent: #3498db;
            --text: #333;
            --light-gray: #ecf0f1;
            --border-radius: 6px;
            --shadow: 0 2px 10px rgba(0,0,0,0.08);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--secondary);
            color: var(--text);
            line-height: 1.5;
        }
        
        .container {
            max-width: 1000px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        
        .profile-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        
        .profile-header {
            background: var(--primary);
            color: white;
            padding: 1.5rem;
            text-align: center;
        }
        
        .profile-header h1 {
            font-size: 1.5rem;
            font-weight: 500;
        }
        
        .profile-content {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 1.5rem;
            padding: 1.5rem;
        }
        
        @media (max-width: 768px) {
            .profile-content {
                grid-template-columns: 1fr;
            }
        }
        
        .profile-sidebar {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }
        
        .avatar {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 4px solid white;
            box-shadow: var(--shadow);
        }
        
        .profile-name {
            font-size: 1.25rem;
            font-weight: 500;
            text-align: center;
        }
        
        .profile-meta {
            color: #7f8c8d;
            font-size: 0.9rem;
        }
        
        .profile-details {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        
        .detail-section {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.25rem;
            box-shadow: var(--shadow);
        }
        
        .section-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        
        .detail-item {
            display: flex;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--light-gray);
        }
        
        .detail-item:last-child {
            border-bottom: none;
        }
        
        .detail-label {
            width: 150px;
            color: #7f8c8d;
            font-weight: 500;
        }
        
        .btn {
            background: var(--accent);
            color: white;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .btn:hover {
            background: #2980b9;
            transform: translateY(-1px);
        }
        
        .btn-secondary {
            background: var(--light-gray);
            color: var(--text);
        }
        
        .btn-secondary:hover {
            background: #dfe6e9;
        }
        
        /* Modal Styles */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 1000;
        }
        
        .modal-content {
            background: white;
            border-radius: var(--border-radius);
            width: 90%;
            max-width: 500px;
            padding: 1.5rem;
            position: relative;
            animation: modalFadeIn 0.3s;
        }
        
        @keyframes modalFadeIn {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .close-modal {
            position: absolute;
            top: 1rem;
            right: 1rem;
            font-size: 1.5rem;
            cursor: pointer;
            color: #95a5a6;
        }
        
        .close-modal:hover {
            color: #7f8c8d;
        }
        
        .modal-title {
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--primary);
        }
        
        .form-group {
            margin-bottom: 1rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #7f8c8d;
        }
        
        .form-group input {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: border 0.2s;
        }
        
        .form-group input:focus {
            outline: none;
            border-color: var(--accent);
        }
        
        .avatar-upload {
            text-align: center;
            margin-bottom: 1.5rem;
        }
        
        .avatar-preview {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 1rem;
            border: 3px solid var(--light-gray);
        }
        
        .actions {
            display: flex;
            justify-content: flex-end;
            gap: 0.75rem;
            margin-top: 1.5rem;
        }