/* ==========================================================================
   LAYOUT 2 COLUMNAS - Explicación izquierda, Código derecha
   ========================================================================== */

/* Layout principal: Sidebar + Content */
.guide-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 0;
    max-width: 1800px;
    margin: 0 auto;
    min-height: calc(100vh - 64px - 80px);
}

/* Sidebar navegación */
.guide-sidebar {
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    overflow-y: auto;
    padding: 24px;
    border-right: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.guide-nav h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin: 0 0 12px 0;
}

.guide-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-nav li {
    margin: 0;
}

.guide-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    border-radius: 8px;
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.guide-nav a::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-border);
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.guide-nav a:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.guide-nav a:hover::before {
    background: var(--color-text-muted);
}

.guide-nav a.active {
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-weight: 600;
    border-left-color: var(--color-primary);
}

.guide-nav a.active::before {
    background: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Contenedor principal del artículo */
.guide-content {
    padding: 0;
    width: 100%;
}

.guide-article {
    font-size: 1rem;
    line-height: 1.8;
}

/* ==========================================================================
   CONTENT ROWS - Cada fila tiene prose (izq) y code (der)
   ========================================================================== */

.content-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 0;
}

.content-row.content-full-width {
    grid-template-columns: 1fr;
}

/* Columna de explicación (izquierda) */
.content-prose {
    padding: 32px 48px;
    background: white;
    border-bottom: 1px solid var(--color-border);
}

/* Columna de código (derecha) */
.content-code {
    padding: 32px 24px;
    background: #1e293b;
    border-bottom: 1px solid #334155;
    position: relative;
}

/* Placeholder cuando no hay código */
.content-code.empty {
    background: #f8fafc;
    border-bottom: 1px solid var(--color-border);
}

/* Full-width rows (tablas, diagramas ASCII) */
.content-full-width .content-prose {
    max-width: 1200px;
}

/* ==========================================================================
   TIPOGRAFÍA Y ELEMENTOS
   ========================================================================== */

.content-prose h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.content-prose h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 32px 0 16px 0;
    color: var(--color-text);
}

.content-prose h2:first-child {
    margin-top: 0;
}

.content-prose h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 24px 0 12px 0;
}

.content-prose h3:first-child {
    margin-top: 0;
}

.content-prose h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 20px 0 10px 0;
}

.content-prose p {
    margin: 0 0 16px 0;
}

.content-prose p:last-child {
    margin-bottom: 0;
}

.content-prose code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    color: #dc2626;
}

/* Tablas */
.content-prose table {
    width: 100%;
    margin: 24px 0;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.content-prose th,
.content-prose td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.content-prose th {
    font-weight: 600;
    background: var(--color-bg-secondary);
}

/* Blockquotes / Notes */
.content-prose blockquote {
    margin: 20px 0;
    padding: 16px 20px;
    background: #fef3c7;
    border-left: 4px solid #d97706;
    border-radius: 0 8px 8px 0;
}

.content-prose blockquote p:last-child {
    margin: 0;
}

/* Listas */
.content-prose ul, .content-prose ol {
    margin: 16px 0;
    padding-left: 24px;
}

.content-prose li {
    margin: 8px 0;
}

/* ==========================================================================
   CÓDIGO EN COLUMNA DERECHA
   ========================================================================== */

.content-code pre,
.content-code .codehilite {
    margin: 0 0 16px 0;
    padding: 0;
    background: transparent !important;
    border-radius: 0;
}

.content-code pre:last-child,
.content-code .codehilite:last-child {
    margin-bottom: 0;
}

.content-code code {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: #e2e8f0;
}

/* Label del lenguaje sobre el código */
.code-label {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94a3b8;
    margin-bottom: 8px;
    padding: 4px 8px;
    background: #334155;
    border-radius: 4px;
}

/* ==========================================================================
   DIAGRAMAS ASCII
   ========================================================================== */

.ascii-diagram {
    background: #1f2937;
    padding: 24px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 24px 0;
}

.ascii-diagram pre {
    margin: 0;
    padding: 0;
    background: transparent;
    color: #e5e7eb;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.4;
}

/* ==========================================================================
   PAGINACIÓN
   ========================================================================== */

.guide-pagination {
    display: flex;
    justify-content: space-between;
    padding: 32px 48px;
    border-top: 1px solid var(--color-border);
    background: white;
}

.guide-pagination a {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.guide-pagination .label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.guide-pagination .title {
    font-weight: 500;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1200px) {
    .content-row {
        grid-template-columns: 1fr;
    }

    .content-code {
        order: 2;
    }

    .content-prose {
        order: 1;
    }
}

@media (max-width: 768px) {
    .guide-sidebar {
        display: none;
    }

    .guide-layout {
        grid-template-columns: 1fr;
    }

    .content-prose {
        padding: 24px;
    }

    .content-code {
        padding: 16px;
    }

    .guide-pagination {
        padding: 24px;
    }
}

/* ==========================================================================
   CODE TABS - Selector de lenguaje
   ========================================================================== */

.code-tabs {
    background: #1f2937;
    border-radius: 8px;
    overflow: hidden;
    margin: 24px 0;
}

.code-tabs-header {
    display: flex;
    gap: 0;
    background: #111827;
    border-bottom: 1px solid #374151;
    padding: 0 16px;
}

.code-tab {
    background: none;
    border: none;
    padding: 12px 16px;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: var(--font-sans);
    color: #9ca3af;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
}

.code-tab:hover {
    color: #e5e7eb;
}

.code-tab.active {
    color: #60a5fa;
    border-bottom-color: #60a5fa;
}

.code-tabs-content {
    position: relative;
}

.code-panel {
    display: none;
    padding: 0;
}

.code-panel.active {
    display: block;
}

.code-panel .codehilite {
    margin: 0;
    border-radius: 0;
}