/* simplificacoes.css — SimplificAções Design System
   Dark theme matching the main stock analyzer platform.
   Colors, typography, and components ported from the React app. */

/* ============================================
   FONT IMPORTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=IBM+Plex+Sans:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
    /* Background palette */
    --bg-primary: #0f1117;
    --bg-secondary: #161922;
    --bg-tertiary: #1c1f2e;

    /* Surface & borders */
    --surface-border: #2a2d3a;

    /* Text palette */
    --text-primary: #e8eaed;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;

    /* Accent colors */
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-amber: #f59e0b;
    --accent-blue: #3b82f6;
    --accent-gold: #d4a853;

    /* Chart colors */
    --chart-line: #60a5fa;
    --chart-price: #e8eaed;

    /* Typography */
    --font-heading: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

    /* Layout */
    --max-width: 1200px;
    --content-width: 720px;

    /* Glassmorphism */
    --glass-bg: rgba(22, 25, 34, 0.7);
    --glass-border: rgba(42, 45, 58, 0.6);
    --glass-blur: 12px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes skeleton-pulse {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.8;
    }
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--surface-border) var(--bg-primary);
}

/* ============================================
   BASE STYLES
   ============================================ */
body {
    font-family: var(--font-body);
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.75;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--chart-line);
    text-decoration: underline;
}

code, pre, kbd, samp {
    font-family: var(--font-mono);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

::selection {
    background: rgba(59, 130, 246, 0.3);
    color: var(--text-primary);
}

/* ============================================
   FOCUS STATES (Accessibility)
   ============================================ */
:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* ============================================
   LAYOUT
   ============================================ */
.site-main {
    min-height: 70vh;
}

.site-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 17, 23, 0.85);
    border-bottom: 1px solid var(--surface-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ============================================
   NAVIGATION
   ============================================ */
.site-nav {
    width: 100%;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

/* Brand / Logo */
.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: opacity var(--transition-fast);
}

.brand:hover {
    opacity: 0.8;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-arrow {
    flex-shrink: 0;
}

/* Desktop nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.4rem;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.4rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-green);
    border-radius: 1px;
}

/* Nav actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-toggle {
    font-family: var(--font-body);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.lang-toggle:hover {
    color: var(--text-primary);
    background: var(--surface-border);
    border-color: var(--text-tertiary);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    margin: 3px 0;
    border-radius: 1px;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
    transform-origin: center;
}

.mobile-menu-toggle.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.mobile-menu-toggle.is-active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--bg-secondary);
    border-top: 1px solid var(--surface-border);
    padding: 0.5rem 2rem 1.5rem;
}

.mobile-menu.is-open {
    display: flex;
}

.mobile-nav-link {
    font-family: var(--font-body);
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--surface-border);
    transition: color var(--transition-fast);
    min-height: 44px;
    display: flex;
    align-items: center;
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

.mobile-nav-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 500;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
    line-height: 1;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--accent-green);
    color: #fff;
}

.btn-primary:hover {
    background: #0ea572;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    color: #fff;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--surface-border);
}

.btn-secondary:hover {
    background: var(--surface-border);
    color: var(--text-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--surface-border);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--text-tertiary);
}

.btn-accent {
    background: var(--accent-blue);
    color: #fff;
}

.btn-accent:hover {
    background: #2563eb;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    color: #fff;
}

.btn-sm {
    font-size: 1.3rem;
    padding: 0.6rem 1.2rem;
}

.btn-lg {
    font-size: 1.7rem;
    padding: 1.2rem 2.8rem;
}

/* ============================================
   GLASSMORPHISM CARD
   ============================================ */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2.4rem;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    border-color: var(--surface-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.5s ease both;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 3.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-description {
    font-family: var(--font-body);
    font-size: 1.8rem;
    color: var(--text-secondary);
    max-width: var(--content-width);
    margin: 0 auto;
}

/* ============================================
   BLOG HOME
   ============================================ */
.blog-home {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Blog header */
.blog-header {
    text-align: center;
    padding: 4rem 0 3rem;
    animation: fadeInUp 0.5s ease both;
}

.blog-header-content {
    max-width: var(--content-width);
    margin: 0 auto;
}

.blog-title {
    font-family: var(--font-heading);
    font-size: 3.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.blog-description {
    font-family: var(--font-body);
    font-size: 1.7rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* Featured post */
.featured-post {
    margin-bottom: 4rem;
    animation: fadeInUp 0.5s ease 0.1s both;
}

.featured-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.featured-card:hover {
    border-color: var(--surface-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.featured-image-link {
    display: block;
    overflow: hidden;
}

.featured-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.featured-card:hover .featured-image {
    transform: scale(1.03);
}

.featured-content {
    padding: 3rem 3rem 3rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-tag {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-green);
    margin-bottom: 0.8rem;
    transition: color var(--transition-fast);
}

.featured-tag:hover {
    color: #34d399;
    text-decoration: none;
}

.featured-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 1rem;
}

.featured-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.featured-title a:hover {
    color: var(--accent-gold);
    text-decoration: none;
}

.featured-excerpt {
    font-size: 1.6rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0 0 1.5rem;
}

.featured-meta {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.3rem;
    color: var(--text-tertiary);
}

/* Section heading */
.posts-grid-section {
    margin-bottom: 4rem;
    animation: fadeInUp 0.5s ease 0.2s both;
}

.section-heading {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--surface-border);
}

/* ============================================
   POST FEED (Grid)
   ============================================ */
.post-feed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.4rem;
}

/* ============================================
   POST CARD
   ============================================ */
.post-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
    animation: fadeInUp 0.5s ease both;
}

.post-card:hover {
    border-color: var(--surface-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    transform: translateY(-2px);
}

.post-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.post-card-content {
    padding: 2rem;
}

.post-card-tag {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-green);
}

.post-card-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin: 0.5rem 0;
    line-height: 1.3;
}

.post-card-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.post-card-title a:hover {
    color: var(--accent-gold);
    text-decoration: none;
}

.post-card-excerpt {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.post-card-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 1.3rem;
    color: var(--text-tertiary);
}

/* ============================================
   SINGLE POST — Article Layout
   ============================================ */
.post-article {
    animation: fadeInUp 0.5s ease both;
}

.post-header {
    margin-bottom: 3rem;
}

.post-header-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
}

.post-tag {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-green);
    margin-bottom: 0.8rem;
    transition: color var(--transition-fast);
}

.post-tag:hover {
    color: #34d399;
    text-decoration: none;
}

.post-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 1.5rem;
    color: var(--text-primary);
}

.post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    font-size: 1.4rem;
    color: var(--text-secondary);
}

.post-meta-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.meta-separator {
    color: var(--text-tertiary);
}

.author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--surface-border);
}

.author-name {
    font-weight: 600;
    font-size: 1.4rem;
    color: var(--text-primary);
}

.reading-time {
    color: var(--text-tertiary);
}

/* ============================================
   FEATURE IMAGE
   ============================================ */
.post-feature-image {
    max-width: 1000px;
    margin: 0 auto 3rem;
    padding: 0 2rem;
}

.post-feature-image img {
    width: 100%;
    border-radius: var(--radius-lg);
}

.post-feature-image figcaption {
    font-size: 1.3rem;
    color: var(--text-tertiary);
    text-align: center;
    padding: 0.8rem 0;
}

/* ============================================
   POST CONTENT WRAPPER (with TOC sidebar)
   ============================================ */
.post-content-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 4rem;
}

/* ============================================
   TABLE OF CONTENTS — Sidebar
   ============================================ */
.post-toc {
    flex-shrink: 0;
    width: 220px;
    order: -1;
}

.toc-sticky {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
}

.toc-heading {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    margin-bottom: 1.2rem;
}

.toc-link {
    display: block;
    font-size: 1.3rem;
    color: var(--text-tertiary);
    padding: 0.4rem 0;
    border-left: 2px solid transparent;
    padding-left: 1.2rem;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    line-height: 1.4;
}

.toc-link:hover {
    color: var(--text-primary);
    text-decoration: none;
}

.toc-link.toc-active {
    color: var(--accent-green);
    border-left-color: var(--accent-green);
}

.toc-link-sub {
    padding-left: 2.4rem;
    font-size: 1.2rem;
}

/* ============================================
   POST CONTENT
   ============================================ */
.post-content {
    font-family: var(--font-body);
    font-size: 1.8rem;
    line-height: 1.75;
    color: var(--text-primary);
    max-width: var(--content-width);
    min-width: 0;
    flex: 1;
}

.post-content p {
    margin-bottom: 1.6rem;
}

.post-content h2 {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    margin: 3.5rem 0 1.5rem;
    color: var(--text-primary);
    scroll-margin-top: 80px;
}

.post-content h3 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-primary);
    scroll-margin-top: 80px;
}

.post-content h4 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin: 2rem 0 0.8rem;
    color: var(--text-primary);
    scroll-margin-top: 80px;
}

.post-content a {
    color: var(--accent-blue);
    text-decoration: underline;
    text-decoration-color: rgba(59, 130, 246, 0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color var(--transition-fast);
}

.post-content a:hover {
    text-decoration-color: var(--accent-blue);
}

.post-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.post-content blockquote {
    border-left: 3px solid var(--accent-gold);
    padding: 1.2rem 0 1.2rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-secondary);
    background: rgba(212, 168, 83, 0.06);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.post-content pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--surface-border);
    padding: 1.6rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 2rem 0;
    font-size: 1.4rem;
    line-height: 1.6;
}

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.88em;
    background: var(--bg-tertiary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--accent-amber);
}

.post-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
    font-size: 1.4rem;
}

.post-content img {
    border-radius: var(--radius-md);
    margin: 2rem auto;
}

.post-content ul,
.post-content ol {
    margin-bottom: 1.6rem;
    padding-left: 2.5rem;
}

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

.post-content li::marker {
    color: var(--text-tertiary);
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--surface-border);
    margin: 3rem 0;
}

.post-content figure {
    margin: 2rem 0;
}

.post-content figcaption {
    font-size: 1.3rem;
    color: var(--text-tertiary);
    text-align: center;
    margin-top: 0.8rem;
}

/* ============================================
   POST FOOTER — Tags, Author, Related
   ============================================ */
.post-footer {
    max-width: var(--content-width);
    margin: 4rem auto 0;
    padding: 0 2rem;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--surface-border);
    margin-bottom: 2.5rem;
}

.post-tags a {
    font-size: 1.3rem;
    padding: 0.4rem 1.2rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.post-tags a:hover {
    background: var(--surface-border);
    color: var(--text-primary);
    text-decoration: none;
}

/* Author Card */
.author-card {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    margin-bottom: 4rem;
}

.author-card-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--surface-border);
    flex-shrink: 0;
}

.author-card-name {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.author-card-bio {
    font-size: 1.4rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Related Posts */
.related-posts {
    margin-bottom: 4rem;
}

.related-heading {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* ============================================
   TABLE STYLES
   ============================================ */
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 1.5rem;
}

.post-content thead {
    border-bottom: 2px solid var(--surface-border);
}

.post-content th {
    font-family: var(--font-heading);
    font-weight: 700;
    text-align: left;
    padding: 1rem 1.2rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    white-space: nowrap;
}

.post-content th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.post-content th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

.post-content td {
    padding: 1rem 1.2rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--surface-border);
}

.post-content tbody tr {
    transition: background var(--transition-fast);
}

.post-content tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.post-content tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive table wrapper */
.post-content .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 2rem 0;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
}

.post-content .table-wrapper table {
    margin: 0;
}

/* ============================================
   PAGE TEMPLATE
   ============================================ */
.page .page-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 4rem 2rem;
    font-size: 1.8rem;
    line-height: 1.75;
}

.page .page-header {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 4rem 2rem 0;
}

.page .page-title {
    text-align: left;
}

/* ============================================
   AUTHOR PAGE
   ============================================ */
.author-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.5s ease both;
}

.author-header .author-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--surface-border);
}

.author-name {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.author-bio {
    font-size: 1.6rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0.5rem auto;
    line-height: 1.75;
}

.author-meta {
    margin-top: 1rem;
    font-size: 1.4rem;
    color: var(--text-tertiary);
}

.author-meta a {
    color: var(--accent-blue);
}

/* ============================================
   TAG PAGE
   ============================================ */
.tag-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.5s ease both;
}

.tag-name {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tag-description {
    font-size: 1.6rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0.5rem auto;
    line-height: 1.75;
}

.tag-count {
    font-size: 1.4rem;
    color: var(--text-tertiary);
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--surface-border);
}

.pagination-info {
    font-size: 1.4rem;
    color: var(--text-tertiary);
}

.pagination a {
    font-weight: 600;
    color: var(--accent-blue);
    transition: color var(--transition-fast);
}

.pagination a:hover {
    color: var(--chart-line);
    text-decoration: none;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    margin-top: 4rem;
}

/* CTA Bridge */
.footer-cta {
    background: var(--bg-secondary);
    border-top: 1px solid var(--surface-border);
    padding: 4rem 2rem;
}

.cta-container {
    max-width: var(--max-width);
    margin: 0 auto;
    background: var(--bg-tertiary);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 4rem;
    text-align: center;
}

.cta-heading {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.6rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.cta-button {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 1.6rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    color: #fff;
    border-radius: var(--radius-md);
    transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
    color: #fff;
    text-decoration: none;
}

/* CVM Disclaimer */
.footer-disclaimer {
    background: var(--bg-secondary);
    padding: 0 2rem;
}

.disclaimer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid var(--accent-amber);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 1.5rem 2rem;
}

.disclaimer-text {
    font-size: 1.3rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.disclaimer-text strong {
    color: var(--accent-amber);
    font-weight: 600;
}

/* Footer Bottom */
.footer-bottom {
    background: var(--bg-secondary);
    border-top: 1px solid var(--surface-border);
    padding: 2rem;
}

.footer-bottom-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.copyright {
    font-size: 1.3rem;
    color: var(--text-tertiary);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1.2rem;
    align-items: center;
}

.social-links a {
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* ============================================
   GHOST CONTENT CARD SIZING
   ============================================ */
.kg-width-wide {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.kg-width-full {
    width: 100vw;
    max-width: none;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}

.kg-width-wide img,
.kg-width-full img {
    width: 100%;
    height: auto;
}

/* ============================================
   SKELETON LOADING
   ============================================ */
.skeleton {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-text {
    height: 1.6rem;
    margin-bottom: 0.8rem;
}

.skeleton-title {
    height: 2.4rem;
    width: 60%;
    margin-bottom: 1.2rem;
}

.skeleton-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
}

/* ============================================
   RESPONSIVE — Mobile first
   ============================================ */

/* Small phones (375px) */
@media (max-width: 480px) {
    html {
        font-size: 58%;
    }

    .blog-home {
        padding: 0 1.6rem;
    }

    .blog-title {
        font-size: 2.6rem;
    }

    .featured-content {
        padding: 2rem;
    }

    .featured-title {
        font-size: 2rem;
    }

    .site-content {
        padding: 2rem 1.6rem;
    }

    .post-header-content {
        padding: 2rem 1.6rem 1.5rem;
    }

    .page-title,
    .post-title {
        font-size: 2.6rem;
    }

    .post-feed {
        grid-template-columns: 1fr;
        gap: 1.6rem;
    }

    .post-card-content {
        padding: 1.6rem;
    }

    .post-content table {
        font-size: 1.3rem;
    }

    .post-content th,
    .post-content td {
        padding: 0.7rem 0.8rem;
    }

    .author-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 2rem;
    }

    .related-posts-grid {
        grid-template-columns: 1fr;
    }
}

/* Tablets and small screens */
@media (max-width: 768px) {
    .desktop-only {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .page-title,
    .post-title {
        font-size: 3rem;
    }

    .featured-card {
        grid-template-columns: 1fr;
    }

    .featured-content {
        padding: 2rem;
    }

    .featured-image {
        aspect-ratio: 16 / 9;
    }

    .post-content-wrapper {
        flex-direction: column;
        gap: 0;
    }

    .post-toc {
        display: none;
    }

    .post-feed {
        grid-template-columns: 1fr;
    }

    .cta-container {
        padding: 2.4rem 2rem;
    }

    .cta-heading {
        font-size: 2rem;
    }

    .cta-button {
        display: block;
        text-align: center;
    }

    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
    }

    .post-content table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Medium screens — TOC hidden, 2-col grid */
@media (min-width: 769px) and (max-width: 1024px) {
    .post-toc {
        display: none;
    }

    .post-feed {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large screens */
@media (min-width: 1025px) {
    .post-feed {
        grid-template-columns: repeat(3, 1fr);
    }
}