/* =============================================
   blog.css — Unified Blog Styles for AS-BUILT 3D
   Extracted from inline <style> of all blog pages
   ============================================= */

/* --- Custom Properties --- */
:root {
    --color-bg: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-text: #f5f5f7;
    --color-text-secondary: #a1a1a6;
    --color-accent: #2997ff;
    --color-success: #30d158;
    --color-warning: #f39c12;
    --color-danger: #ff453a;
    --color-border: rgba(255, 255, 255, 0.08);
}

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

/* --- Base --- */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

/* --- Navbar --- */
.blog-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.blog-nav .logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-nav .logo span {
    color: var(--color-accent);
}

.blog-nav .back-home,
.blog-nav .back-link {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.blog-nav .back-home:hover,
.blog-nav .back-link:hover {
    text-decoration: underline;
}

/* --- Blog Landing (index) --- */
.blog-landing {
    padding: 140px 5% 40px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.blog-landing .tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(41, 151, 255, 0.15);
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.blog-landing h1 {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.blog-landing p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Blog Landing Banner --- */
.blog-banner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 5%;
}

.blog-banner img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

/* --- Articles Grid (index) --- */
.articles-grid {
    max-width: 900px;
    margin: 60px auto 80px;
    padding: 0 5%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.article-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.3s, transform 0.3s;
    display: block;
}

.article-card:hover {
    border-color: rgba(41, 151, 255, 0.4);
    transform: translateY(-4px);
}

.article-card .card-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.article-card .card-tag.guide {
    background: rgba(41, 151, 255, 0.15);
    color: var(--color-accent);
}

.article-card .card-tag.errors {
    background: rgba(255, 69, 58, 0.15);
    color: var(--color-danger);
}

.article-card .card-tag.cases {
    background: rgba(48, 209, 88, 0.15);
    color: var(--color-success);
}

.article-card h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.3;
}

.article-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.article-card .card-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.article-card .read-more {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- Blog Hero (articles) --- */
.blog-hero {
    padding: 140px 5% 60px;
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(41, 151, 255, 0.15);
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.blog-hero .tag.tag-success {
    background: rgba(48, 209, 88, 0.15);
    color: var(--color-success);
}

.blog-hero .tag.tag-danger {
    background: rgba(255, 69, 58, 0.15);
    color: var(--color-danger);
}

.blog-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.blog-hero .meta {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* --- Article Cover Image --- */
.article-cover {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 5%;
}

.article-cover img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

/* --- Blog Content (articles) --- */
.blog-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 5% 80px;
}

.blog-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 3rem 0 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.blog-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 2rem 0 0.8rem;
    color: var(--color-accent);
}

.blog-content p {
    margin-bottom: 1.2rem;
    color: #ccc;
}

.blog-content ul,
.blog-content ol {
    margin: 0 0 1.5rem 1.5rem;
    color: #ccc;
}

.blog-content li {
    margin-bottom: 0.5rem;
}

.blog-content strong {
    color: var(--color-text);
}

/* --- Tip & Warning Boxes (buenas-practicas) --- */
.tip-box {
    background: rgba(48, 209, 88, 0.08);
    border-left: 4px solid var(--color-success);
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.tip-box .tip-title {
    font-weight: 700;
    color: var(--color-success);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.tip-box p {
    margin: 0;
    font-size: 0.95rem;
}

.warning-box {
    background: rgba(243, 156, 18, 0.08);
    border-left: 4px solid var(--color-warning);
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.warning-box .warning-title {
    font-weight: 700;
    color: var(--color-warning);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.warning-box p {
    margin: 0;
    font-size: 0.95rem;
}

/* --- Step Cards (buenas-practicas) --- */
.step-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin: 1.5rem 0;
}

.step-card .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-accent);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.step-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.step-card p {
    margin: 0;
    font-size: 0.95rem;
}

/* --- Example Cards (ejemplos-uso) --- */
.example-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
    transition: border-color 0.3s;
}

.example-card:hover {
    border-color: rgba(41, 151, 255, 0.3);
}

.example-card .example-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.example-card .example-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(41, 151, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.example-card .example-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    background: rgba(41, 151, 255, 0.12);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.example-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.example-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.example-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.2rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--color-border);
}

.example-detail .detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.example-detail .detail-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.example-detail .detail-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
}

/* --- Error Cards (5-peores-practicas) --- */
.error-card {
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255, 69, 58, 0.3);
    border-radius: 12px;
    padding: 2rem;
    margin: 1.5rem 0;
    position: relative;
}

.error-card::before {
    content: attr(data-number);
    position: absolute;
    top: -14px;
    left: 20px;
    background: var(--color-danger);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
}

.error-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
    color: var(--color-danger);
}

.error-card p {
    font-size: 0.95rem;
}

.consequence {
    background: rgba(255, 69, 58, 0.06);
    border-left: 3px solid var(--color-danger);
    padding: 0.8rem 1.2rem;
    margin: 1rem 0;
    border-radius: 0 6px 6px 0;
    font-size: 0.9rem;
    color: #ccc;
}

.consequence strong {
    color: var(--color-danger);
}

.fix-box {
    background: rgba(48, 209, 88, 0.06);
    border-left: 3px solid var(--color-success);
    padding: 0.8rem 1.2rem;
    margin: 1rem 0 0;
    border-radius: 0 6px 6px 0;
    font-size: 0.9rem;
    color: #ccc;
}

.fix-box strong {
    color: var(--color-success);
}

/* --- CTA Blog (shared) --- */
.cta-blog {
    background: linear-gradient(135deg, rgba(41, 151, 255, 0.15), rgba(243, 156, 18, 0.1));
    border: 1px solid rgba(41, 151, 255, 0.3);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 3rem 0;
    text-align: center;
}

.cta-blog h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--color-text);
}

.cta-blog p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.cta-blog a {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 8px;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s;
}

.cta-blog a:hover {
    transform: translateY(-2px);
}

/* --- Footer --- */
.blog-footer {
    text-align: center;
    padding: 3rem;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-border);
}

.blog-footer a {
    color: var(--color-accent);
    text-decoration: none;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .article-card {
        padding: 1.5rem;
    }

    .example-detail {
        grid-template-columns: 1fr;
    }
}