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

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --background-color: #f5f7fa;
    --surface-color: #ffffff;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #ddd;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 3px solid var(--primary-color);
}

header h1 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

header p {
    color: var(--text-light);
    font-size: 1.1em;
}

main {
    display: grid;
    gap: 30px;
    margin-bottom: 40px;
}

section {
    background: var(--surface-color);
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

/* Configuration Section */
.config-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.config-section .form-group {
    display: flex;
    flex-direction: column;
}

.auth-method {
    grid-column: 1 / -1;
}

.auth-method label {
    font-weight: 600;
    margin-bottom: 12px;
    display: block;
}

.radio-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: normal;
    margin: 0;
}

.radio-label input[type="radio"] {
    cursor: pointer;
    width: auto;
    margin: 0;
}

@media (max-width: 768px) {
    .config-section {
        grid-template-columns: 1fr;
    }
    
    .auth-method {
        grid-column: auto;
    }
}

/* Form Styles */
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1em;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group textarea {
    min-height: 220px;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group small {
    color: var(--text-light);
    font-size: 0.85em;
    margin-top: 4px;
}

/* Button Styles */
.button-group,
.endpoint-section {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.endpoint-btn,
.submit-btn,
.tab-btn {
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.endpoint-btn {
    background-color: var(--background-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    flex: 1;
    min-width: 200px;
}

.endpoint-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.endpoint-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.submit-btn {
    background-color: var(--primary-color);
    color: white;
    margin-top: 10px;
    align-self: flex-start;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

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

/* Endpoint Content */
.endpoint-content {
    display: none;
}

.endpoint-content.active {
    display: block;
}

#addressForm {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

#ftuPermissionForm {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

#addressForm .form-group:nth-child(3),
#addressForm .form-group:nth-child(4) {
    grid-column: auto;
}

#ftuPermissionForm .form-group:nth-child(3),
#ftuPermissionForm .form-group:nth-child(4) {
    grid-column: auto;
}

#ftuPermissionForm .submit-btn {
    grid-column: 1 / -1;
}

.checkbox-group {
    justify-content: flex-end;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

@media (max-width: 768px) {
    #addressForm {
        grid-template-columns: 1fr;
    }

    #ftuPermissionForm {
        grid-template-columns: 1fr;
    }
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background: none;
    color: var(--text-light);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 12px 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Output Styles */
.output-box {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 15px;
    font-family: "Monaco", "Courier New", monospace;
    font-size: 0.9em;
    overflow-x: auto;
    min-height: 150px;
    max-height: 500px;
    overflow-y: auto;
}

.output-box.error {
    border-color: var(--error-color);
    background-color: rgba(220, 53, 69, 0.05);
}

.output-box.success {
    border-color: var(--success-color);
    background-color: rgba(40, 167, 69, 0.05);
}

.placeholder {
    color: var(--text-light);
    font-style: italic;
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

/* Results Section */
.results-section {
    display: none;
}

.results-section.active {
    display: block;
}

/* Batch Section */
.batch-section {
    display: grid;
    gap: 16px;
}

.batch-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.batch-controls input[type="file"] {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--surface-color);
}

.secondary-btn {
    padding: 12px 20px;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    background: var(--surface-color);
    color: var(--primary-color);
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
}

.secondary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.button-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.batch-summary {
    color: var(--text-light);
    font-size: 0.95em;
}

.batch-preview {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--surface-color);
}

.batch-preview table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

.batch-preview th,
.batch-preview td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.batch-preview th {
    background: #f0f6ff;
    position: sticky;
    top: 0;
}

.batch-preview td.enriched {
    background: #fff3cd;
    border-left: 3px solid var(--warning-color);
    font-weight: 600;
}

.batch-preview td.status-ok {
    background: rgba(40, 167, 69, 0.14);
    color: #1f6f3a;
    font-weight: 700;
}

.batch-preview td.status-error {
    background: rgba(220, 53, 69, 0.08);
    color: #a12622;
    font-weight: 600;
}

/* Status Section */
.status-section {
    position: sticky;
    bottom: 20px;
}

.status-box {
    background-color: var(--surface-color);
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    border-radius: 4px;
    box-shadow: var(--shadow);
}

.status-box.error {
    border-left-color: var(--error-color);
    background-color: rgba(220, 53, 69, 0.05);
}

.status-box.success {
    border-left-color: var(--success-color);
    background-color: rgba(40, 167, 69, 0.05);
}

.status-box.loading {
    border-left-color: var(--warning-color);
    background-color: rgba(255, 193, 7, 0.05);
}

.status-box p {
    margin: 0;
    font-weight: 500;
}

/* Footer */
footer {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
}

/* Utility Classes */
.loading::after {
    content: "";
    display: inline-block;
    width: 15px;
    height: 15px;
    border: 3px solid rgba(0, 102, 204, 0.3);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 1.8em;
    }

    section {
        padding: 15px;
    }

    .button-group {
        flex-direction: column;
    }

    .endpoint-btn {
        min-width: unset;
    }
}