/* PocketLLM Blog Styles */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url(../fonts/inter-latin.woff2) format('woff2');
    unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

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

:root {
    --primary-bg: #F5EFE6;
    --secondary-bg: #FDFCF8;
    --accent-yellow: #F4C753;
    --accent-gold: #a07d2e;
    --text-dark: #1A2332;
    --text-medium: #4A5568;
    --text-light: #5a6473;
    --sidebar-bg: #FFFFFF;
    --border-color: #E2D5C7;
    --card-shadow: 0 4px 6px rgba(0,0,0,0.05);
    --sidebar-width: 280px;
    --code-bg: #1A2332;
    --code-text: #F5EFE6;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--text-dark);
    color: white;
    padding: 8px 16px;
    z-index: 10000;
    text-decoration: none;
    font-weight: 600;
}
.skip-link:focus { top: 0; }

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

/* Mobile header */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
}
.mobile-logo .logo-text { font-size: 20px; font-weight: 700; color: var(--text-dark); text-decoration: none; }
.mobile-menu-toggle { display: flex; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text-dark); transition: all 0.3s ease; }

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 999;
    transition: transform 0.3s ease;
}
.sidebar-header { padding: 40px 32px 32px; border-bottom: 1px solid var(--border-color); }
.logo-text { font-size: 24px; font-weight: 700; color: var(--text-dark); letter-spacing: -0.5px; text-decoration: none; }
.sidebar-nav { flex: 1; padding: 32px 0; overflow-y: auto; }
.nav-section { margin-bottom: 32px; padding: 0 32px; }
.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-bottom: 12px;
    display: block;
}
.nav-link {
    display: block;
    padding: 10px 0;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease;
}
.nav-link:hover { color: var(--text-dark); }
.nav-link.active { color: var(--text-dark); font-weight: 600; }
.sidebar-footer { padding: 24px 32px 32px; border-top: 1px solid var(--border-color); }
.footer-links { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.footer-links a { color: var(--text-light); font-size: 13px; text-decoration: none; }
.footer-links a:hover { color: var(--text-dark); }
.copyright { font-size: 12px; color: var(--text-light); }

/* Main content */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 80px 120px;
    max-width: 1100px;
}

/* Blog index */
.blog-header { margin-bottom: 80px; }
.blog-label {
    display: inline-block;
    padding: 8px 16px;
    background: var(--accent-yellow);
    color: var(--text-dark);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: 4px;
    margin-bottom: 32px;
}
.blog-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-dark);
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}
.blog-subtitle {
    font-size: 20px;
    color: var(--text-medium);
    line-height: 1.6;
    max-width: 700px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.blog-card {
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    border-color: var(--accent-yellow);
}
.blog-card-category {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 12px;
}
.blog-card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 16px;
}
.blog-card-excerpt {
    font-size: 15px;
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 24px;
    flex: 1;
}
.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-light);
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}
.blog-card-read-more {
    color: var(--text-dark);
    font-weight: 600;
}

/* Blog post article */
.blog-post {
    max-width: 760px;
}
.post-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
    transition: color 0.2s ease;
}
.post-back:hover { color: var(--text-dark); }
.post-category {
    display: inline-block;
    padding: 8px 16px;
    background: var(--accent-yellow);
    color: var(--text-dark);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: 4px;
    margin-bottom: 24px;
}
.post-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    color: var(--text-dark);
    margin-bottom: 24px;
    letter-spacing: -1.2px;
}
.post-meta {
    display: flex;
    gap: 24px;
    align-items: center;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}
.post-meta-item { display: flex; align-items: center; gap: 6px; }

.post-content {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-medium);
}
.post-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 56px;
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}
.post-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 40px;
    margin-bottom: 16px;
    line-height: 1.3;
}
.post-content p {
    margin-bottom: 24px;
}
.post-content ul,
.post-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}
.post-content li {
    margin-bottom: 12px;
}
.post-content strong {
    color: var(--text-dark);
    font-weight: 700;
}
.post-content a {
    color: var(--accent-gold);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}
.post-content a:hover {
    color: var(--text-dark);
}
.post-content blockquote {
    border-left: 4px solid var(--accent-yellow);
    padding: 16px 24px;
    margin: 32px 0;
    background: var(--secondary-bg);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-dark);
}
.post-content code {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 0.9em;
    color: var(--text-dark);
}
.post-content pre {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 24px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 32px 0;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 14px;
    line-height: 1.6;
}
.post-content pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--code-text);
}
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 15px;
    background: var(--secondary-bg);
    border-radius: 8px;
    overflow: hidden;
}
.post-content th,
.post-content td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.post-content th {
    background: var(--primary-bg);
    font-weight: 700;
    color: var(--text-dark);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.post-content tr:last-child td {
    border-bottom: none;
}

.callout {
    background: var(--secondary-bg);
    border: 2px solid var(--accent-yellow);
    border-radius: 12px;
    padding: 24px 28px;
    margin: 40px 0;
}
.callout-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 12px;
}
.callout p:last-child {
    margin-bottom: 0;
}

/* Post CTA */
.post-cta {
    margin-top: 80px;
    padding: 48px;
    background: var(--text-dark);
    color: white;
    border-radius: 20px;
    text-align: center;
}
.post-cta h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}
.post-cta p {
    font-size: 16px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}
.btn-primary {
    background: var(--accent-yellow);
    color: var(--text-dark);
}
.btn-primary:hover {
    background: white;
    transform: translateY(-2px);
}

/* Related posts */
.related-posts {
    margin-top: 80px;
    padding-top: 56px;
    border-top: 1px solid var(--border-color);
}
.related-posts-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 32px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.related-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}
.related-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-2px);
}
.related-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.3;
}
.related-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* Footer */
.footer {
    margin-top: 120px;
    padding-top: 60px;
    border-top: 1px solid var(--border-color);
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 40px;
}
.footer-section p { margin-bottom: 12px; font-size: 14px; color: var(--text-light); }
.footer-section a {
    display: block;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.2s ease;
}
.footer-section a:hover { color: var(--text-dark); }
.footer-brand {
    font-size: 20px !important;
    font-weight: 700;
    color: var(--text-dark) !important;
    margin-bottom: 8px !important;
}
.footer-heading {
    font-size: 13px !important;
    font-weight: 700;
    color: var(--text-dark) !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px !important;
}
.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-light);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1200px) {
    .main-content { padding: 60px 80px; }
    .blog-title { font-size: 48px; }
    .post-title { font-size: 40px; }
}
@media (max-width: 968px) {
    .mobile-header { display: flex; }
    .sidebar { transform: translateX(-100%); }
    .sidebar.active { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 100px 40px 60px; }
    .blog-title { font-size: 36px; }
    .post-title { font-size: 32px; }
    .post-content h2 { font-size: 26px; }
    .post-content h3 { font-size: 20px; }
    .footer-content { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 640px) {
    .main-content { padding: 80px 24px 40px; }
    .blog-title { font-size: 30px; }
    .post-title { font-size: 26px; }
    .post-content { font-size: 16px; }
    .post-content h2 { font-size: 22px; }
    .post-content pre { padding: 16px; font-size: 13px; }
    .blog-grid { grid-template-columns: 1fr; gap: 20px; }
    .blog-card { padding: 24px; }
    .post-cta { padding: 32px 24px; }
    .post-cta h3 { font-size: 22px; }
    .footer-content { grid-template-columns: 1fr; }
}