:root {
            --primary: #007342;
            --secondary: #9FC210;
        }

        body {
            background: linear-gradient(135deg, #007342 0%, #9FC210 100%);
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, sans-serif;
            padding: 20px 0;
        }

        .form-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
            overflow: hidden
        }

        .form-header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 24px;
            text-align: center
        }

        .form-logo {
            width: 300px;
            max-width: 100%;
            margin-bottom: 12px;
        }

        .form-body {
            padding: 28px
        }

        .required::after {
            content: ' *';
            color: #ef4444
        }

        .file-upload-area {
            border: 2px dashed var(--primary);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            background: #f6fbf8
        }

        .app-navbar {
            background: linear-gradient(135deg, #007342 0%, #9FC210 100%) !important;
        }

        .file-preview {
            margin-top: 10px;
            display: none;
        }

        .file-preview.show {
            display: block
        }

        .checkbox-group {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 12px
        }

        .alert-error {
            display: none
        }

        .spinner-container {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            align-items: center;
            justify-content: center;
            z-index: 9999
        }

        .spinner-container.show {
            display: flex
        }

        .spinner {
            width: 48px;
            height: 48px;
            border: 6px solid #fff;
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite
        }

        @keyframes spin {
            to {
                transform: rotate(360deg)
            }
        }