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

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    font-weight: 700;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #475569;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-success:hover {
    background-color: #059669;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.spinner {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Table Styles */
.table-container {
    margin-top: 20px;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.claims-table {
    width: 100%;
    border-collapse: collapse;
}

.claims-table thead {
    background-color: var(--background-color);
    border-bottom: 2px solid var(--border-color);
}

.claims-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.claims-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.claims-table tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

.claims-table tbody tr:hover {
    background-color: var(--background-color);
}

.claims-table tbody tr:last-child {
    border-bottom: none;
}

.claims-table td {
    padding: 16px;
    font-size: 0.9rem;
    color: var(--text-primary);
    vertical-align: middle;
}

.claim-id-cell {
    font-weight: 700;
    color: var(--primary-color);
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-in_progress {
    background-color: #fef3c7;
    color: #92400e;
}

.status-completed {
    background-color: #d1fae5;
    color: #065f46;
}

.status-failed {
    background-color: #fee2e2;
    color: #991b1b;
}

.actions-cell {
    white-space: nowrap;
}

.actions-cell button {
    margin-right: 8px;
}

.actions-cell button:last-child {
    margin-right: 0;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: var(--card-background);
    margin: 5% auto;
    padding: 0;
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

.modal-large {
    max-width: 1200px;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close {
    color: var(--text-secondary);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: var(--text-primary);
}

form {
    padding: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.file-list {
    margin-top: 12px;
    padding: 12px;
    background-color: var(--background-color);
    border-radius: 8px;
    max-height: 150px;
    overflow-y: auto;
}

.file-item {
    padding: 8px;
    margin-bottom: 4px;
    background-color: white;
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.result-content {
    padding: 24px;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }

    .table-container {
        overflow-x: auto;
    }

    .claims-table {
        min-width: 800px;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
    }

    .actions-cell button {
        margin-bottom: 4px;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

td.empty-state {
    border: none;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: 20px;
}