* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            min-height: 100vh;
        }

        .navbar {
            background: #274F97;    
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: white;
            font-weight: bold;
            font-size: 1.5rem;
        }

        .logo img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            margin-right: 10px;
        }

        .nav-links {
            display: flex;
            list-style: none;
            align-items: center;
            gap: 2rem;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #FFD700;
        }

        .main-content {
            margin-top: 80px;
            padding: 3rem 0;
            min-height: calc(100vh - 80px);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .register-container {
            max-width: 550px;
            width: 100%;
            margin: 0 20px;
        }

        .register-card {
            background: white;
            padding: 3rem 2.5rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            text-align: center;
        }

        .register-header {
            margin-bottom: 2.5rem;
        }

        .register-header h1 {
            color: #8B4513;
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }

        .register-header p {
            color: #666;
            font-size: 1rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }

        .input-wrapper {
            position: relative;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.875rem 1rem;
            padding-left: 3rem;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #fafafa;
        }

        .form-group select {
            cursor: pointer;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: #8B4513;
            background: white;
            box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
        }

        .input-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #666;
            font-size: 1.1rem;
        }

        .required {
            color: #ff4444;
        }

        .register-btn {
            width: 100%;
            background: linear-gradient(135deg, #28a745, #20c997);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .register-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(40, 167, 69, 0.3);
        }

        .register-btn:active {
            transform: translateY(0);
        }

        .register-btn:disabled {
            background: #6c757d;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .password-toggle {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: #666;
            cursor: pointer;
            font-size: 1.1rem;
            padding: 0;
        }

        .password-toggle:hover {
            color: #8B4513;
        }

        .divider {
            margin: 2rem 0;
            position: relative;
            text-align: center;
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: #e0e0e0;
        }

        .divider span {
            background: white;
            padding: 0 1rem;
            color: #666;
            font-size: 0.9rem;
        }

        .auth-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: center;
        }

        .auth-link {
            color: #8B4513;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s;
        }

        .auth-link:hover {
            color: #A0522D;
            text-decoration: underline;
        }

        .alert {
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            font-weight: 500;
        }

        .alert-danger {
            background-color: #f8d7da;
            border: 1px solid #f5c6cb;
            color: #721c24;
        }

        .alert-success {
            background-color: #d4edda;
            border: 1px solid #c3e6cb;
            color: #155724;
        }

        @media (max-width: 480px) {
            .register-card {
                padding: 2rem 1.5rem;
                margin: 0 10px;
                border-radius: 16px;
            }

            .register-header h1 {
                font-size: 1.8rem;
            }

            .nav-container {
                padding: 0 15px;
            }

            .nav-links {
                gap: 1rem;
            }

            .logo {
                font-size: 1.3rem;
            }
        }