/* ============================================
   ChecksForLinks - Hub y páginas de herramientas
   ============================================ */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.tool-page {
    padding-bottom: 4rem;
}

.tool-breadcrumb {
    padding: 1.25rem 0 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tool-breadcrumb a {
    color: var(--text-secondary);
}

.tool-breadcrumb a:hover {
    color: var(--accent);
}

.tool-breadcrumb span {
    margin: 0 0.35rem;
}

.tool-header {
    padding: 1.5rem 0 2rem;
}

.tool-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    margin-bottom: 0.75rem;
}

.tool-header .lead {
    color: var(--text-secondary);
    max-width: 42rem;
    font-size: 1.05rem;
}

.privacy-notice {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.85rem 1.1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 1.5rem 0;
}

.privacy-notice strong {
    color: var(--text-primary);
}

/* Hub */
.tools-hero {
    padding: 2.5rem 0 1.5rem;
    text-align: center;
}

.tools-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.75rem;
}

.tools-hero p {
    color: var(--text-secondary);
    max-width: 36rem;
    margin: 0 auto;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    padding: 2rem 0 3rem;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: border-color 0.2s, transform 0.2s;
}

a.tool-card--available,
a.tool-card--available:hover,
a.tool-card--available:focus,
a.tool-card--available:visited {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

a.tool-card--available:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

a.tool-card--available *,
a.tool-card--available:hover * {
    text-decoration: none;
}

.tool-card--soon {
    opacity: 0.65;
}

.tool-card h2 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.tool-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex: 1;
}

.tool-card__badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    width: fit-content;
}

.tool-card__badge--live {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent);
}

.tool-card__badge--soon {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* Formulario herramienta */
.tool-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.tool-form label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.tool-form .hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.tool-form input[type="url"],
.tool-form textarea {
    width: 100%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.tool-form textarea {
    min-height: 200px;
    resize: vertical;
}

.tool-form input:focus,
.tool-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.form-error {
    color: #f87171;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.form-error.is-visible {
    display: block;
}

/* Resultados */
.tool-results {
    display: none;
}

.tool-results.is-visible {
    display: block;
}

.score-box {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}

.score-box__value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    line-height: 1;
}

.score-box__label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.summary-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    text-align: center;
}

.summary-item__n {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
}

.summary-item__l {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.alerts-list {
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0;
}

.alerts-list li {
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

.alert--error {
    background: rgba(248, 113, 113, 0.12);
    border-left: 3px solid #f87171;
    color: #fecaca;
}

.alert--warn {
    background: rgba(250, 204, 21, 0.1);
    border-left: 3px solid #facc15;
    color: #fef08a;
}

.results-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 2rem;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.results-table th,
.results-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.results-table th {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

.results-table td {
    color: var(--text-secondary);
    word-break: break-word;
    max-width: 220px;
}

.results-table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    white-space: nowrap;
}

.badge--ok { background: rgba(34, 197, 94, 0.2); color: var(--accent); }
.badge--warn { background: rgba(250, 204, 21, 0.2); color: #facc15; }
.badge--err { background: rgba(248, 113, 113, 0.2); color: #f87171; }
.badge--info { background: rgba(96, 165, 250, 0.2); color: #93c5fd; }

.tool-section {
    margin: 2.5rem 0;
}

.tool-section h2 {
    font-size: 1.25rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.tool-section p,
.tool-section li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.tool-section ul {
    margin-left: 1.25rem;
}

.faq-item {
    margin-bottom: 1.25rem;
}

.faq-item h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.related-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.related-tools a {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    text-decoration: none;
}

.related-tools a:hover {
    border-color: var(--accent);
}

.related-tools .muted {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.4rem 0;
}

/* Productos afiliado tras resultados de herramienta */
.results-affiliate {
    display: none;
    margin: 1.5rem 0;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.results-affiliate.is-visible {
    display: block;
}

.results-affiliate--after-form {
    margin-top: 0;
    margin-bottom: 1.5rem;
    scroll-margin-top: 1rem;
}

.results-affiliate__heading {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.results-affiliate__disclosure {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.45;
}

.results-affiliate__disclosure a {
    color: var(--accent);
}

.results-affiliate__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 720px) {
    .results-affiliate__grid {
        grid-template-columns: 1fr;
    }
}

.results-affiliate__loading {
    color: var(--text-secondary);
    font-size: 0.9rem;
    grid-column: 1 / -1;
}

a.affiliate-product-card,
a.affiliate-product-card:hover,
a.affiliate-product-card:focus,
a.affiliate-product-card:visited {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color 0.2s, background 0.2s;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

a.affiliate-product-card:hover {
    border-color: var(--accent);
    background: var(--bg-card);
}

a.affiliate-product-card *,
a.affiliate-product-card:hover * {
    text-decoration: none;
}

.affiliate-product-card__image {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
}

.affiliate-product-card__image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.affiliate-product-card__body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.affiliate-product-card__title {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.affiliate-product-card__desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.affiliate-product-card__cta {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    width: fit-content;
}

.affiliate-product-card__tag {
    display: block;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    opacity: 0.85;
}

/* Resultados por URL (affiliate checker) */
.url-results-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.url-result-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
}

.url-result-card__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
    margin-bottom: 0.75rem;
}

.url-result-card__num {
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
}

.url-result-card__score {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.url-result-card__score strong {
    color: var(--accent);
}

.url-result-card__url {
    margin-bottom: 0.75rem;
    word-break: break-all;
}

.url-result-card__url code {
    font-size: 0.8rem;
    color: var(--text-primary);
}

.url-result-card__meta {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.5rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.url-result-card__meta dt {
    color: var(--text-secondary);
    font-weight: 500;
}

.url-result-card__meta dd {
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

.html-output-wrap {
    margin-top: 1rem;
}

.html-output-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.html-output {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
    line-height: 1.5;
}

.html-output code {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    white-space: pre-wrap;
}

.url-result-card__disclaimer {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    margin-bottom: 0;
}

.tool-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    cursor: pointer;
}

.tool-checkbox input {
    margin-top: 0.2rem;
    accent-color: var(--accent);
}

.tool-checkbox code {
    font-size: 0.85em;
    color: var(--accent);
}

/* Vista previa SERP (meta title / description) */
.serp-preview {
    background: #1a1a1e;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    max-width: 36rem;
    font-family: Arial, Helvetica, sans-serif;
}

.serp-preview__url {
    font-size: 0.8rem;
    color: #bdc1c6;
    margin-bottom: 0.35rem;
    line-height: 1.3;
    word-break: break-all;
}

.serp-preview__title {
    font-size: 1.25rem;
    line-height: 1.3;
    color: #8ab4f8;
    margin-bottom: 0.35rem;
    cursor: default;
}

.serp-preview__title:hover {
    text-decoration: underline;
}

.serp-preview__desc {
    font-size: 0.875rem;
    line-height: 1.45;
    color: #bdc1c6;
}

.serp-preview__placeholder {
    opacity: 0.55;
}

.meta-counters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    margin-bottom: 1.5rem;
}

.meta-counter__label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.15rem;
}

.meta-counter__value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
}

.alerts-list .alert--ok {
    background: rgba(34, 197, 94, 0.1);
    border-left: 3px solid var(--accent);
    color: #bbf7d0;
}

/* Slug generator */
.slug-output-box {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.slug-output-box__label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.slug-output-box__value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--accent);
    word-break: break-all;
}

.slug-mode-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Heading tree */
.heading-tree {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    max-height: 320px;
    overflow-y: auto;
}

.heading-tree__item {
    padding: 0.35rem 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.heading-tree__item:last-child {
    border-bottom: none;
}

.heading-tree__tag {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    min-width: 2rem;
}

.heading-tree__text {
    color: var(--text-primary);
}

.heading-tree__issue {
    color: #facc15;
    font-size: 0.8rem;
}