:root {
            --primary: #2e8b57;
            --secondary: #ff8c00;
            --light: #f8f9fa;
            --dark: #343a40;
            --border: #dee2e6;
            --success: #28a745;
            --error: #dc3545;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e7ec 100%);
            color: #333;
            line-height: 1.6;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            width: 90%;
            max-width: 1000px;
            margin: 20px auto;
            padding: 20px;
        }
        
        .header {
            background: linear-gradient(135deg, var(--primary), #1a5d38);
            color: white;
            padding: 30px;
            text-align: center;
            border-radius: 15px 15px 0 0;
            box-shadow: var(--shadow);
            margin-bottom: 5px;
            position: relative;
            overflow: hidden;
        }
        
        .header::before {
            content: "";
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
        }
        
        .logo {
            width: 70px;
            height: 70px;
            background-color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        
        .logo i {
            color: var(--primary);
            font-size: 32px;
        }
        
        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .sub-title {
            font-size: 1.3rem;
            font-weight: 400;
            margin-bottom: 20px;
            opacity: 0.9;
        }
        
        .form-container {
            background: white;
            border-radius: 0 0 15px 15px;
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 40px;
            position: relative;
        }
        
        .form-section {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }
        
        .section-header {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .section-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(46, 139, 87, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        
        .section-icon i {
            color: var(--primary);
            font-size: 24px;
        }
        
        .section-title {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .section-description {
            color: #666;
        }
        
        .row {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -15px;
        }
        
        .col {
            flex: 1;
            padding: 0 15px;
            min-width: 300px;
            margin-bottom: 20px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #444;
        }
        
        .input-box {
            position: relative;
        }
        
        input, select, textarea {
            width: 100%;
            padding: 14px 15px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: white;
        }
        
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.2);
        }
        
        .tel-input-container {
            display: flex;
            align-items: center;
        }
        
        .tel-prefix {
            background-color: #f1f1f1;
            padding: 14px 12px;
            border: 1px solid var(--border);
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-weight: 500;
        }
        
        .tel-input {
            border-radius: 0 8px 8px 0 !important;
            flex: 1;
        }
        
        .file-upload-wrapper {
            position: relative;
            overflow: hidden;
            display: inline-block;
            width: 100%;
            border: 1px dashed var(--border);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            background-color: #fafafa;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .file-upload-wrapper:hover {
            border-color: var(--primary);
            background-color: rgba(46, 139, 87, 0.05);
        }
        
        .file-upload-input {
            position: absolute;
            left: 0;
            top: 0;
            opacity: 0;
            width: 100%;
            height: 100%;
            cursor: pointer;
        }
        
        .file-info {
            display: block;
            color: #666;
            margin-top: 8px;
            font-size: 14px;
        }
        
        .upload-icon {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .btn-submit {
            background: linear-gradient(135deg, var(--secondary), #e67300);
            color: white;
            border: none;
            padding: 16px 40px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: block;
            margin: 30px auto 0;
            box-shadow: 0 4px 15px rgba(255, 140, 0, 0.3);
        }
        
        .btn-submit:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 140, 0, 0.4);
        }
        
        .btn-submit:active {
            transform: translateY(0);
        }
        
        /* Validation Styles */
        .error-message {
            color: var(--error);
            font-size: 14px;
            margin-top: 6px;
            display: none;
        }
        
        input:invalid, select:invalid, textarea:invalid {
            border-color: var(--error);
        }
        
        input:invalid + .error-message, 
        select:invalid + .error-message,
        textarea:invalid + .error-message {
            display: block;
        }
        
        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background: white;
            border-radius: 15px;
            width: 90%;
            max-width: 500px;
            padding: 40px;
            text-align: center;
            position: relative;
            animation: modalAppear 0.4s ease;
        }
        
        @keyframes modalAppear {
            from { transform: translateY(-50px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }
        
        .close {
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 28px;
            cursor: pointer;
            color: #888;
        }
        
        .modal-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(40, 167, 69, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--success);
            font-size: 40px;
            font-weight: bold;
        }
        
        .modal h3 {
            font-size: 28px;
            color: var(--success);
            margin-bottom: 15px;
        }
        
        .modal p {
            margin-bottom: 10px;
            color: #555;
        }
        
        .modal .btn-submit {
            margin-top: 25px;
        }
        
        .reg-number {
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--primary);
            margin: 15px 0;
            padding: 10px;
            background: rgba(46, 139, 87, 0.1);
            border-radius: 8px;
            display: inline-block;
        }
        
        /* Responsive Design */
        @media (max-width: 768px) {
            .header {
                padding: 20px 0;
            }
            
            .header h1 {
                font-size: 2rem;
            }
            
            .form-container {
                padding: 25px;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .section-icon {
                width: 40px;
                height: 40px;
            }
            
            .section-icon i {
                font-size: 20px;
            }
            
            .col {
                flex: 100%;
            }
            
            .btn-submit {
                width: 100%;
                padding: 16px;
            }
        }
        
        @media (max-width: 480px) {
            .header h1 {
                font-size: 1.8rem;
            }
            
            .header p {
                font-size: 1rem;
            }
            
            .form-container {
                padding: 20px 15px;
            }
            
            .section-header {
                flex-direction: column;
                text-align: center;
            }
            
            .section-icon {
                margin: 0 auto 15px;
            }
        }