/* ============================================
           SINGLE BLOG - ESTILOS INDEPENDIENTES
           ============================================ */

/* Reset específico */
.single-blog *,
.single-blog *::before,
.single-blog *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variables y base */
.single-blog {
    --sb-primary: #783AFB;
    --sb-primary-hover: #8872EF;
    --sb-primary-light: #dbeafe;
    --sb-text: #1f2937;
    --sb-text-light: #6b7280;
    --sb-text-lighter: #9ca3af;
    --sb-bg: #ffffff;
    --sb-bg-alt: #f8fafc;
    --sb-border: #e5e7eb;
    --sb-border-light: #f3f4f6;
    --sb-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --sb-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --sb-radius: 16px;
    --sb-radius-sm: 8px;
    --sb-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sb-max-width: 800px;
    --sb-sidebar-width: 320px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--sb-text);
    background: var(--sb-bg);
}

/* Header del artículo */
.sb-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 60px 20px 40px;
    margin-bottom: 40px;
}

.sb-header-inner {
    max-width: var(--sb-max-width);
    margin: 0 auto;
}

.sb-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--sb-text-light);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

    .sb-breadcrumb a {
        color: var(--sb-primary);
        text-decoration: none;
        font-weight: 500;
        transition: var(--sb-transition);
    }

        .sb-breadcrumb a:hover {
            color: var(--sb-primary-hover);
            text-decoration: underline;
        }

.sb-breadcrumb-separator {
    color: var(--sb-text-lighter);
}

.sb-category {
    display: inline-block;
    background: var(--sb-primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.sb-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--sb-text);
}

.sb-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 24px;
    color: var(--sb-text-light);
    font-size: 0.95rem;
}

.sb-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sb-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sb-author-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--sb-shadow);
}

.sb-author-info {
    display: flex;
    flex-direction: column;
}

.sb-author-name {
    font-weight: 600;
    color: var(--sb-text);
}

.sb-author-role {
    font-size: 0.875rem;
    color: var(--sb-text-light);
}

/* Layout principal */
.sb-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 80px;
    display: grid;
    grid-template-columns: 1fr var(--sb-sidebar-width);
    gap: 60px;
    align-items: start;
}

/* Contenido del artículo */
.sb-content {
    max-width: var(--sb-max-width);
}

.sb-featured-image {
    width: 100%;
    height: auto;
    border-radius: var(--sb-radius);
    margin-bottom: 40px;
    box-shadow: var(--sb-shadow-lg);
}

.sb-article {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--sb-text);
}

    .sb-article p {
        margin-bottom: 24px;
    }

    .sb-article h2 {
        font-size: 1.875rem;
        font-weight: 700;
        margin: 48px 0 24px;
        color: var(--sb-text);
        line-height: 1.3;
    }

    .sb-article h3 {
        font-size: 1.5rem;
        font-weight: 600;
        margin: 36px 0 20px;
        color: var(--sb-text);
    }

    .sb-article ul,
    .sb-article ol {
        margin-bottom: 24px;
        padding-left: 24px;
    }

    .sb-article li {
        margin-bottom: 12px;
    }

    .sb-article blockquote {
        background: var(--sb-primary-light);
        border-left: 4px solid var(--sb-primary);
        padding: 24px 32px;
        margin: 32px 0;
        border-radius: 0 var(--sb-radius-sm) var(--sb-radius-sm) 0;
        font-style: italic;
        font-size: 1.25rem;
        color: var(--sb-text);
    }

        .sb-article blockquote cite {
            display: block;
            margin-top: 16px;
            font-size: 1rem;
            font-style: normal;
            font-weight: 600;
            color: var(--sb-primary);
        }

    .sb-article img {
        max-width: 100%;
        height: auto;
        border-radius: var(--sb-radius-sm);
        margin: 32px 0;
    }

    .sb-article a {
        color: var(--sb-primary);
        text-decoration: underline;
        text-underline-offset: 4px;
        font-weight: 500;
    }

        .sb-article a:hover {
            color: var(--sb-primary-hover);
        }

    .sb-article strong {
        font-weight: 700;
        color: var(--sb-text);
    }

/* Tags */
.sb-tags {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--sb-border);
}

.sb-tags-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--sb-text-light);
    margin-bottom: 16px;
}

.sb-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sb-tag {
    display: inline-block;
    padding: 8px 16px;
    background: var(--sb-bg-alt);
    border: 1px solid var(--sb-border);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--sb-text-light);
    text-decoration: none;
    transition: var(--sb-transition);
}

    .sb-tag:hover {
        background: var(--sb-primary);
        color: white;
        border-color: var(--sb-primary);
        transform: translateY(-2px);
    }

/* Share buttons */
.sb-share {
    margin-top: 40px;
    padding: 24px;
    background: var(--sb-bg-alt);
    border-radius: var(--sb-radius);
    text-align: center;
}

.sb-share-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--sb-text);
}

.sb-share-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.sb-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--sb-border);
    color: var(--sb-text-light);
    transition: var(--sb-transition);
    cursor: pointer;
}

    .sb-share-btn:hover {
        transform: translateY(-3px);
        box-shadow: var(--sb-shadow);
    }

    .sb-share-btn.twitter:hover {
        background: #1da1f2;
        color: white;
        border-color: #1da1f2;
    }

    .sb-share-btn.facebook:hover {
        background: #4267B2;
        color: white;
        border-color: #4267B2;
    }

    .sb-share-btn.linkedin:hover {
        background: #0077b5;
        color: white;
        border-color: #0077b5;
    }

    .sb-share-btn.copy:hover {
        background: var(--sb-text);
        color: white;
        border-color: var(--sb-text);
    }

/* Sidebar */
.sb-sidebar {
    position: sticky;
    top: 40px;
}

.sb-widget {
    background: var(--sb-bg-alt);
    border-radius: var(--sb-radius);
    padding: 28px;
    margin-bottom: 32px;
}

.sb-widget-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--sb-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

    .sb-widget-title svg {
        width: 20px;
        height: 20px;
        color: var(--sb-primary);
    }

/* Tabla de contenidos */
.sb-toc-list {
    list-style: none;
    padding: 0;
}

    .sb-toc-list li {
        margin-bottom: 12px;
    }

    .sb-toc-list a {
        display: block;
        color: var(--sb-text-light);
        text-decoration: none;
        font-size: 0.95rem;
        padding: 8px 12px;
        border-radius: var(--sb-radius-sm);
        transition: var(--sb-transition);
        border-left: 3px solid transparent;
    }

        .sb-toc-list a:hover,
        .sb-toc-list a.active {
            color: var(--sb-primary);
            background: white;
            border-left-color: var(--sb-primary);
            font-weight: 500;
        }

/* Posts relacionados en sidebar */
.sb-related-item {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    text-decoration: none;
    color: inherit;
    transition: var(--sb-transition);
}

    .sb-related-item:hover {
        transform: translateX(4px);
    }

        .sb-related-item:hover .sb-related-title {
            color: var(--sb-primary);
        }

.sb-related-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--sb-radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.sb-related-content {
    flex: 1;
}

.sb-related-title {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 6px;
    color: var(--sb-text);
    transition: var(--sb-transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sb-related-date {
    font-size: 0.8rem;
    color: var(--sb-text-lighter);
}

/* Newsletter widget */
.sb-newsletter-text {
    font-size: 0.95rem;
    color: var(--sb-text-light);
    margin-bottom: 20px;
}

.sb-form-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sb-input {
    padding: 12px 16px;
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--sb-transition);
}

    .sb-input:focus {
        outline: none;
        border-color: var(--sb-primary);
        box-shadow: 0 0 0 3px var(--sb-primary-light);
    }

.sb-button {
    padding: 12px 24px;
    background: var(--sb-primary);
    color: white;
    border: none;
    border-radius: var(--sb-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--sb-transition);
}

    .sb-button:hover {
        background: var(--sb-primary-hover);
        transform: translateY(-2px);
        box-shadow: var(--sb-shadow);
    }

/* Navegación entre posts */
.sb-post-nav {
    max-width: var(--sb-max-width);
    margin: 60px auto 0;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.sb-post-nav-item {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--sb-bg-alt);
    border-radius: var(--sb-radius);
    text-decoration: none;
    color: inherit;
    transition: var(--sb-transition);
    border: 1px solid transparent;
}

    .sb-post-nav-item:hover {
        border-color: var(--sb-border);
        transform: translateY(-4px);
        box-shadow: var(--sb-shadow-lg);
    }

    .sb-post-nav-item.next {
        text-align: right;
        align-items: flex-end;
    }

.sb-post-nav-label {
    font-size: 0.875rem;
    color: var(--sb-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sb-post-nav-item.next .sb-post-nav-label {
    flex-direction: row-reverse;
}

.sb-post-nav-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--sb-text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Responsive */
@media (max-width: 1024px) {
    .sb-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .sb-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
    }

    .sb-widget {
        margin-bottom: 0;
    }
}

@media (max-width: 640px) {
    .sb-header {
        padding: 40px 16px 32px;
    }

    .sb-title {
        font-size: 1.75rem;
    }

    .sb-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .sb-container {
        padding: 0 16px 60px;
    }

    .sb-article {
        font-size: 1rem;
    }

        .sb-article h2 {
            font-size: 1.5rem;
        }

    .sb-post-nav {
        grid-template-columns: 1fr;
        padding: 0 16px;
    }

    .sb-post-nav-item.next {
        text-align: left;
        align-items: flex-start;
    }

        .sb-post-nav-item.next .sb-post-nav-label {
            flex-direction: row;
        }
}

/* Animaciones */
@keyframes sbFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sb-header,
.sb-content,
.sb-sidebar {
    animation: sbFadeIn 0.6s ease forwards;
}

.sb-content {
    animation-delay: 0.1s;
}

.sb-sidebar {
    animation-delay: 0.2s;
}
.sb-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.sb-form-success {
    background: #d1fae5;
    color: #065f46;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
}

.sb-form-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
}