/* ===================================================================
   BIOTOOLS™ - PORTAL EDITORIAL CIENTÍFICO DE SAÚDE METABÓLICA & LONGEVIDADE
   Curadoria Técnica: Dr. Juarez Bruschi Junior - Biomédico (CRBM-5)
   Estética: Clean Clinical & High-Contrast Editorial (Light Canvas)
   =================================================================== */

:root {
    --bg-canvas: #f8fafc;
    --bg-surface: #ffffff;
    --bg-subtle: #f1f5f9;
    --bg-emerald-soft: #ecfdf5;
    --bg-sky-soft: #f0f9ff;
    --bg-amber-soft: #fffbeb;
    --bg-purple-soft: #f5f3ff;

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-inverse: #ffffff;

    --accent-emerald: #059669;
    --accent-emerald-light: #10b981;
    --accent-sky: #0284c7;
    --accent-amber: #d97706;
    --accent-purple: #7c3aed;
    --accent-red: #dc2626;
    --brand-dark: #0f172a;

    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-emerald: #a7f3d0;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;

    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 12px 30px -6px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.12);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', 'Outfit', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-canvas);
}

body {
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ================= TOP CLINICAL BAR ================= */
.top-editorial-bar {
    background: var(--brand-dark);
    color: #e2e8f0;
    font-size: 0.8rem;
    padding: 8px 0;
    border-bottom: 1px solid #1e293b;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-bar-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.top-bar-badge i {
    color: var(--accent-emerald-light);
}

.top-bar-links {
    display: flex;
    gap: 16px;
    font-size: 0.78rem;
    color: #94a3b8;
}

.top-bar-links a:hover {
    color: #ffffff;
}

@media (max-width: 768px) {
    .top-bar-links {
        display: none;
    }
}

/* ================= MAIN NAVBAR ================= */
.portal-navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-light);
    padding: 14px 0;
    box-shadow: var(--shadow-xs);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.portal-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--brand-dark);
    color: var(--accent-emerald-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.18);
}

.brand-title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.35rem;
    letter-spacing: -0.6px;
    color: var(--text-primary);
    line-height: 1.1;
}

.brand-title span {
    color: var(--accent-emerald);
}

.brand-sub {
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-muted);
}

.portal-nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    list-style: none;
}

.portal-nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 6px 2px;
    position: relative;
}

.portal-nav-links a:hover,
.portal-nav-links a.active {
    color: var(--accent-emerald);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

@media (max-width: 1024px) {
    .portal-nav-links {
        display: none;
    }
}

/* ================= BUTTONS ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 11px 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-dark {
    background: var(--brand-dark);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.16);
}

.btn-dark:hover {
    background: #000000;
    transform: translateY(-2px);
}

.btn-emerald {
    background: var(--accent-emerald);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.25);
}

.btn-emerald:hover {
    background: #047857;
    transform: translateY(-2px);
}

.btn-outline {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-outline:hover {
    background: var(--bg-subtle);
    border-color: #94a3b8;
}

/* ================= HERO EDITORIAL ================= */
.editorial-hero {
    padding: 48px 0 40px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--border-light);
}

.hero-editorial-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 36px;
    align-items: stretch;
}

@media (max-width: 992px) {
    .hero-editorial-grid {
        grid-template-columns: 1fr;
    }
}

.featured-article-banner {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.featured-article-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--accent-emerald), var(--accent-sky));
}

.category-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-emerald-soft);
    color: var(--accent-emerald);
    border: 1px solid var(--border-emerald);
    padding: 5px 12px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 16px;
    width: fit-content;
}

.category-pill.sky {
    background: var(--bg-sky-soft);
    color: var(--accent-sky);
    border-color: #bae6fd;
}

.category-pill.amber {
    background: var(--bg-amber-soft);
    color: var(--accent-amber);
    border-color: #fde68a;
}

.category-pill.purple {
    background: var(--bg-purple-soft);
    color: var(--accent-purple);
    border-color: #ddd6fe;
}

.hero-main-title {
    font-family: var(--font-heading);
    font-size: 2.45rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.8px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .hero-main-title {
        font-size: 1.85rem;
    }
}

.hero-lead {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.65;
}

.editorial-byline {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    margin-top: 20px;
}

.byline-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-emerald);
}

.byline-info strong {
    display: block;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.byline-info span {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* SIDEBAR QUICK DIAGNOSTIC CARD */
.quick-clinical-panel {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: var(--shadow-md);
}

.panel-title {
    font-family: var(--font-heading);
    font-size: 1.18rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-sub {
    font-size: 0.84rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

/* ================= PILLAR CATEGORIES BAR ================= */
.pillars-section {
    padding: 32px 0;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

@media (max-width: 992px) {
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 550px) {
    .pillars-grid {
        grid-template-columns: 1fr;
    }
}

.pillar-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    box-shadow: var(--shadow-xs);
    transition: all 0.25s ease;
}

.pillar-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-emerald);
}

.pillar-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--bg-emerald-soft);
    color: var(--accent-emerald);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.pillar-card h3 {
    font-family: var(--font-heading);
    font-size: 0.98rem;
    font-weight: 800;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.pillar-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* ================= SECTION HEADERS ================= */
.section-block {
    padding: 56px 0;
}

.section-block.bg-white {
    background: #ffffff;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-emerald);
    margin-bottom: 6px;
}

.section-heading-main {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.6px;
    color: var(--text-primary);
}

.section-desc-sub {
    font-size: 0.98rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin-top: 6px;
}

/* ================= ARTICLES EDITORIAL GRID ================= */
.articles-editorial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .articles-editorial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 680px) {
    .articles-editorial-grid {
        grid-template-columns: 1fr;
    }
}

.editorial-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 26px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}

.editorial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-medium);
}

.editorial-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    font-size: 0.76rem;
    color: var(--text-muted);
    font-weight: 600;
}

.editorial-card h3 {
    font-family: var(--font-heading);
    font-size: 1.18rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 12px;
}

.editorial-card h3 a:hover {
    color: var(--accent-emerald);
}

.editorial-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 18px;
}

.editorial-highlights {
    list-style: none;
    background: var(--bg-canvas);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-bottom: 18px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.editorial-highlights li {
    margin-bottom: 6px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.editorial-highlights li:last-child {
    margin-bottom: 0;
}

.editorial-highlights li i {
    color: var(--accent-emerald);
    margin-top: 4px;
    font-size: 0.75rem;
}

.editorial-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
    font-size: 0.82rem;
    font-weight: 700;
}

.read-more-link {
    color: var(--accent-emerald);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 800;
}

.read-more-link:hover {
    gap: 10px;
}

/* ================= INTERACTIVE METABOLIC SUITE ================= */
.metabolic-suite-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (max-width: 900px) {
    .metabolic-suite-grid {
        grid-template-columns: 1fr;
    }
}

.clinical-calc-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: #ffffff;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-emerald);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.14);
}

.clinical-output-box {
    margin-top: 16px;
    background: var(--bg-canvas);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--accent-emerald);
    border-radius: var(--radius-md);
    padding: 16px;
}

.clinical-output-val {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 900;
    color: var(--text-primary);
}

.clinical-output-badge {
    display: inline-block;
    font-size: 0.76rem;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 20px;
    background: var(--bg-emerald-soft);
    color: var(--accent-emerald);
    margin: 4px 0 8px;
}

/* ================= FULL ARTICLE PAGE STYLING ================= */
.article-page-wrapper {
    padding: 44px 0 70px;
}

.article-breadcrumb {
    font-size: 0.84rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.article-breadcrumb a {
    color: var(--accent-emerald);
    font-weight: 600;
}

.article-main-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .article-main-card {
        padding: 24px 20px;
    }
}

.article-h1 {
    font-family: var(--font-heading);
    font-size: 2.35rem;
    font-weight: 900;
    line-height: 1.18;
    letter-spacing: -0.8px;
    color: var(--text-primary);
    margin-bottom: 18px;
}

@media (max-width: 768px) {
    .article-h1 {
        font-size: 1.75rem;
    }
}

.article-subtitle {
    font-size: 1.12rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.article-author-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding: 18px 20px;
    background: var(--bg-canvas);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: 32px;
}

.article-toc {
    background: var(--bg-emerald-soft);
    border: 1px solid var(--border-emerald);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 32px;
}

.article-toc h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
    color: #065f46;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-toc ol {
    padding-left: 20px;
    font-size: 0.9rem;
    color: #047857;
    font-weight: 600;
}

.article-toc li {
    margin-bottom: 6px;
}

.article-toc a:hover {
    text-decoration: underline;
}

.article-prose h2 {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 38px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--bg-subtle);
}

.article-prose h3 {
    font-family: var(--font-heading);
    font-size: 1.22rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 26px 0 12px;
}

.article-prose p {
    font-size: 1.04rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.article-prose ul,
.article-prose ol {
    padding-left: 24px;
    margin-bottom: 24px;
    color: var(--text-secondary);
    font-size: 1.02rem;
    line-height: 1.75;
}

.article-prose li {
    margin-bottom: 10px;
}

.clinical-callout {
    background: var(--bg-sky-soft);
    border-left: 4px solid var(--accent-sky);
    padding: 20px 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 28px 0;
}

.clinical-callout h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 800;
    color: #0369a1;
    margin-bottom: 6px;
}

.clinical-callout p {
    margin-bottom: 0;
    font-size: 0.95rem;
    color: #0c4a6e;
}

.clinical-table-wrap {
    overflow-x: auto;
    margin: 28px 0;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.clinical-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.clinical-table th {
    background: var(--brand-dark);
    color: #ffffff;
    text-align: left;
    padding: 12px 16px;
    font-weight: 700;
}

.clinical-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.clinical-table tr:nth-child(even) td {
    background: var(--bg-canvas);
}

.references-box {
    margin-top: 42px;
    padding: 24px;
    background: var(--bg-canvas);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.references-box h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.references-box ol {
    padding-left: 20px;
    font-size: 0.84rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.references-box li {
    margin-bottom: 8px;
}

/* ================= FOOTER ================= */
.portal-footer {
    background: var(--brand-dark);
    color: #cbd5e1;
    padding: 60px 0 30px;
    border-top: 1px solid #1e293b;
}

.footer-grid-4 {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 40px;
}

@media (max-width: 900px) {
    .footer-grid-4 {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 550px) {
    .footer-grid-4 {
        grid-template-columns: 1fr;
    }
}

.footer-col h4 {
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 14px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 9px;
    font-size: 0.86rem;
}

.footer-col a {
    color: #94a3b8;
}

.footer-col a:hover {
    color: var(--accent-emerald-light);
}

.footer-bottom-bar {
    padding-top: 24px;
    border-top: 1px solid #1e293b;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.8rem;
    color: #64748b;
}

/* ================= LGPD COOKIE BANNER ================= */
.lgpd-cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 960px;
    margin: 0 auto;
    background: #0f172a;
    color: #f8fafc;
    border: 1px solid #334155;
    border-radius: var(--radius-lg);
    padding: 18px 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

@media (max-width: 768px) {
    .lgpd-cookie-banner {
        flex-direction: column;
        align-items: stretch;
        bottom: 12px;
        left: 12px;
        right: 12px;
    }
}

.lgpd-cookie-text {
    font-size: 0.83rem;
    color: #cbd5e1;
    line-height: 1.5;
}

.lgpd-cookie-text a {
    color: var(--accent-emerald-light);
    text-decoration: underline;
}

.lgpd-cookie-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

/* ===== v2 chrome (Nov 2026) ===== */
.skip-link{position:absolute;left:-9999px;top:0;background:#0f172a;color:#fff;padding:8px 12px;z-index:10000}
.skip-link:focus{left:8px;top:8px}
.site-header{background:#fff;border-bottom:1px solid #e2e8f0;position:sticky;top:0;z-index:50}
.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.site-header .brand-sub{text-transform:none;letter-spacing:0}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-nav a{display:block;padding:8px 12px;border-radius:8px;color:#0f172a;text-decoration:none;font-weight:600;font-size:.93rem}
.site-nav a:hover,.site-nav a:focus{background:#ecfdf5;color:#047857}
@media (max-width:900px){
 .site-header{position:static}
 .site-header-inner{flex-direction:column;align-items:flex-start;gap:8px}
 .site-nav{width:100%}
 .site-nav ul{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
 .site-nav li{flex:0 0 auto}
 .site-nav a{background:#f1f5f9;font-size:.88rem;padding:8px 12px}
}
.site-footer{background:#0f172a;color:#cbd5e1;margin-top:48px;padding:40px 0 24px;font-size:.9rem;line-height:1.6}
.site-footer a{color:#e2e8f0;text-decoration:none}.site-footer a:hover{text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin:4px 0}
.site-footer-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:760px){.site-footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.sf-title{color:#fff;font-weight:700;margin:0 0 8px}
.site-footer-bottom{border-top:1px solid #334155;margin-top:28px;padding-top:16px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.82rem;color:#94a3b8}
.pub-dates{font-size:.85rem;color:#64748b;margin:6px 0 0}
/* home + hubs */
.hz{max-width:1080px;margin:0 auto;padding:28px 16px 8px}
.hz h1{font-size:clamp(1.7rem,4.6vw,2.6rem);line-height:1.15;margin:6px 0 12px;color:#0f172a}
.hz h2{font-size:clamp(1.3rem,3.2vw,1.7rem);margin:40px 0 10px;color:#0f172a}
.hz h3{font-size:1.08rem;margin:0 0 6px;line-height:1.35}
.hz p,.hz li{font-size:1.02rem;line-height:1.7;color:#334155}
.hz .eyebrow{display:inline-block;font-size:.8rem;font-weight:700;color:#047857;background:#ecfdf5;border-radius:999px;padding:4px 12px}
.hz .lead{font-size:1.1rem;color:#334155;max-width:760px}
.cardlist{display:grid;grid-template-columns:1fr;gap:16px;margin:14px 0}
@media(min-width:700px){.cardlist{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.cardlist.three{grid-template-columns:1fr 1fr 1fr}}
.acard{background:#fff;border:1px solid #e2e8f0;border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.acard img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block}
.acard .acb{padding:14px 16px 16px}
.acard h3 a{color:#0f172a;text-decoration:none}.acard h3 a:hover{color:#047857;text-decoration:underline}
.acard p{font-size:.93rem;margin:0 0 8px;line-height:1.55}
.acard .meta{font-size:.8rem;color:#64748b}
.linklist{list-style:none;padding:0;margin:10px 0;display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:700px){.linklist{grid-template-columns:1fr 1fr}}
.linklist li{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:12px 14px;margin:0}
.linklist a{font-weight:700;color:#0f172a;text-decoration:none}.linklist a:hover{color:#047857;text-decoration:underline}
.linklist span{display:block;font-size:.9rem;color:#475569;line-height:1.5;margin-top:2px}
.authorbox{display:flex;gap:16px;align-items:flex-start;background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:16px;margin:16px 0}
.authorbox img{width:84px;height:84px;border-radius:50%;object-fit:cover;flex:0 0 auto}
.authorbox p{margin:0 0 6px;font-size:.95rem}
.note-box{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:12px 16px;font-size:.93rem}
.btc .guide p,.btc .guide li{line-height:1.7}