/* Base styles and variables */
        :root {
            --color-primary: #dc2626; /* red-600 */
            --color-primary-dark: #b91c1c; /* red-700 */
            --color-light: #f9fafb; /* gray-50 */
            --color-white: #ffffff;
            --color-text-dark: #1f2937; /* gray-800 */
            --color-text-medium: #4b5563; /* gray-600 */
            --color-border: #d1d5db; /* gray-300 */
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            font-family: 'Inter', sans-serif;
        }

        /* Body and Layout */
        .report-body {
            background-color: var(--color-light);
            min-height: 100vh;
            padding: 1rem; /* p-4 */
            display: flex;
            justify-content: center;
            align-items: flex-start; /* items-start */
        }
        
        /* Responsive Padding for Body */
        @media (min-width: 640px) {
            .report-body {
                padding: 2rem; /* sm:p-8 */
            }
        }

        /* Main Container Card */
        .report-container {
            width: 100%;
            background-color: var(--color-white);
            box-shadow: var(--shadow-lg); /* shadow-2xl */
            border-radius: 0.75rem; /* rounded-xl */
            margin-top: 1rem; /* mt-10 */
            overflow: hidden;
        }

        /* Header Styling */
        .report-header {
            background-color: var(--color-primary-dark);
            color: var(--color-white);
            padding: 1.5rem; /* p-6 */
            border-top-left-radius: 0.75rem;
            border-top-right-radius: 0.75rem;
        }
        
        .header-title {
            font-size: 1.875rem; /* text-3xl */
            font-weight: 800; /* font-extrabold */
            margin-bottom: 0.25rem; /* mb-1 */
            display: flex;
            align-items: center;
        }

        .header-title svg {
            width: 2.5rem;
            height: 2.5rem;
            margin-right: 0.75rem;
            flex-shrink: 0;
        }
        
        .header-subtitle {
            font-size: 1.125rem; /* text-lg */
            color: rgba(254, 202, 202, 0.8); /* red-200 equivalent */
        }

        @media (min-width: 640px) {
            .report-header {
                padding: 2rem; /* sm:p-8 */
            }
            .header-title {
                font-size: 2.25rem; /* sm:text-4xl */
            }
            .header-title svg {
                width: 3rem;
                height: 3rem;
            }
        }

        /* Main Content Padding */
        .report-main {
            padding: 1.5rem; /* p-6 */
        }
        @media (min-width: 640px) {
            .report-main {
                padding: 2.5rem; /* sm:p-10 */
            }
        }

        /* Message Box (Alerts) */
        .message-box {
            padding: 1rem;
            border: 1px solid;
            border-radius: 0.5rem;
            margin-bottom: 1.5rem;
            position: relative;
        }
        .message-box.success {
            background-color: #d1fae5; /* green-100 */
            border-color: #34d399; /* green-400 */
            color: #065f46; /* green-700 */
        }
        .message-box.error {
            background-color: #fee2e2; /* red-100 */
            border-color: #f87171; /* red-400 */
            color: #b91c1c; /* red-700 */
        }
        .message-box strong {
            font-weight: 700;
        }

        /* Form Styling */
        .report-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem; /* space-y-6 */
        }

        .form-group label {
            display: block;
            font-size: 0.875rem; /* text-sm */
            font-weight: 500; /* font-medium */
            color: var(--color-text-medium);
            margin-bottom: 0.25rem;
        }
        
        .input-field, .select-field, .textarea-field {
            width: 100%;
            padding: 1rem 1rem; /* px-4 py-2 */
            border: 1px solid var(--color-border);
            border-radius: 0.5rem;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-sm */
            transition: all 150ms ease-in-out;
        }

        .input-field:focus, .select-field:focus, .textarea-field:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #1a73e8; /* focus:ring-red-500 equivalent */
        }

        .textarea-field {
            resize: vertical;
        }

        /* User ID Display */
        .user-id-wrapper {
            padding-top: 1rem;
            border-top: 1px solid #e5e7eb; /* border-t border-gray-200 */
        }
        .user-id-display {
            font-family: monospace;
            background-color: #e5e7eb; /* bg-gray-200 */
            padding: 0.125rem 0.5rem; /* px-2 py-0.5 */
            border-radius: 0.375rem; /* rounded-md */
            color: var(--color-primary-dark);
            font-size: 0.875rem; /* text-sm */
        }

        /* Submit Button */
        .submit-button {
            width: 100%;
            display: inline-flex;
            justify-content: center;
            align-items: center;
            padding: 0.75rem 1.5rem; /* px-6 py-3 */
            border: none;
            font-size: 1rem; /* text-base */
            font-weight: 500; /* font-medium */
            border-radius: 0.5rem; /* rounded-lg */
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.06); /* shadow-xl */
            color: var(--color-white);
            background-color: #1a73e8;
            transition: all 300ms ease-in-out;
            cursor: pointer;
        }

        .submit-button:hover:not(:disabled) {
            background-color: var(--color-primary-dark);
            transform: scale(1.01);
        }

        .submit-button:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.5); /* focus:ring-2 focus:ring-offset-2 focus:ring-red-500 equivalent */
        }

        .submit-button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .submit-button svg {
            width: 1.5rem;
            height: 1.5rem;
            margin-right: 0.5rem;
        }
        
        .loading-spinner {
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-top: 2px solid white;
            border-radius: 50%;
            width: 1.5rem;
            height: 1.5rem;
            margin-right: 0.5rem;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }