/**
 * UTM URL Generator — layout and controls.
 * Shared tool chrome lives in tool-styles.css; this file holds UTM-only rules.
 */

/* Two-column layout on wide viewports */
@media (min-width: 900px) {
    .utm-page-tool .tool-container {
        flex-direction: row;
        align-items: flex-start;
    }

    .utm-page-tool .utm-form,
    .utm-page-tool .output-section {
        flex: 1 1 0;
        min-width: 0;
    }
}

.utm-form .form-group input[type="text"],
.utm-form .form-group input[type="url"] {
    width: 100%;
    max-width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 0.25rem;
    font-family: inherit;
    font-size: 1rem;
    box-sizing: border-box;
}

.utm-form .form-group input:focus {
    outline: 2px solid var(--focus-outline-color);
    outline-offset: 2px;
}

.utm-form .hint {
    display: block;
    font-size: 0.875rem;
    color: var(--date-color);
    margin-top: 0.35rem;
    line-height: 1.4;
}

.utm-form .required {
    color: #c62828;
}

.utm-form .optional {
    font-weight: 400;
    color: var(--date-color);
    font-size: 0.9em;
}

.custom-params-section {
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.custom-params-section h2 {
    margin-top: 0;
}

.custom-param-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.custom-param-row .custom-key,
.custom-param-row .custom-value {
    flex: 1 1 140px;
    min-width: 0;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    box-sizing: border-box;
}

.btn-remove-param {
    flex: 0 0 auto;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    background: var(--button-bg);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
}

.btn-remove-param:hover {
    background: var(--button-hover-bg);
    border-color: var(--accent-color);
}

.output-section h2 {
    margin-top: 0;
}

.validation-message {
    min-height: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.validation-message.info {
    color: var(--accent-color);
}

.validation-message.success {
    color: #2e7d32;
}

.validation-message.error {
    color: #c62828;
}

.generated-url {
    width: 100%;
    box-sizing: border-box;
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    word-break: break-all;
    min-height: 3.5rem;
    margin-bottom: 1rem;
}

.generated-url.empty {
    color: var(--date-color);
    font-style: italic;
    font-family: inherit;
}

.generated-url.valid {
    border-color: var(--accent-color);
    background: var(--bg-primary);
}

.generated-url.invalid {
    border-color: #c62828;
    background: rgba(198, 40, 40, 0.06);
}

.copy-section {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.btn-add-param,
.btn-copy {
    padding: 0.65rem 1.25rem;
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color 0.2s, opacity 0.2s;
}

.btn-add-param:hover,
.btn-copy:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.btn-copy:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.copy-feedback {
    visibility: hidden;
    font-size: 0.9rem;
    color: #2e7d32;
    font-weight: 600;
}

.copy-feedback.show {
    visibility: visible;
}

.url-breakdown {
    margin-top: 1.5rem;
}

.url-breakdown h3 {
    margin-top: 0;
}

.url-breakdown table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.url-breakdown th,
.url-breakdown td {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
    word-break: break-word;
}

.url-breakdown th {
    background: var(--bg-secondary);
    font-weight: 600;
}