/* ==========================================================================
   Paper Trail AI — Ghost Theme
   BOLD EDITORIAL — High contrast, color-blocked, chaotic energy
   ========================================================================== */

/* --- CSS Variables --- */
:root {
    --color-primary: #0055FF;
    --color-primary-hover: #0044cc;
    --color-hot: #FF3300;
    --color-lime: #BFFF00;
    --color-violet: #8B5CF6;
    --color-bg: #ffffff;
    --color-bg-dark: #0A0A0A;
    --color-bg-secondary: #F0F0F0;
    --color-text: #0A0A0A;
    --color-text-inverse: #ffffff;
    --color-text-secondary: #555555;
    --color-text-muted: #999999;
    --color-border: #E0E0E0;
    --color-surface: #ffffff;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Chakra Petch', var(--font-sans);
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
    --font-serif: Georgia, 'Times New Roman', serif;
    --max-width: 1280px;
    --content-width: 740px;
    --radius: 0px;
    --radius-sm: 4px;
    --transition: 150ms ease;
    --transition-slow: 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Dark mode */
.dark-mode {
    --color-bg: #0A0A0A;
    --color-bg-secondary: #141414;
    --color-text: #F0F0F0;
    --color-text-inverse: #0A0A0A;
    --color-text-secondary: #AAAAAA;
    --color-text-muted: #666666;
    --color-border: #222222;
    --color-surface: #141414;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 62.5%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

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

/* --- Scroll Animations --- */
.post-card,
.post-header,
.post-feature-image,
.post-cta,
.related-posts .section-inner {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.post-card.is-visible,
.post-header.is-visible,
.post-feature-image.is-visible,
.post-cta.is-visible,
.related-posts .section-inner.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.post-card:nth-child(2) { transition-delay: 0.08s; }
.post-card:nth-child(3) { transition-delay: 0.16s; }
.post-card:nth-child(4) { transition-delay: 0.08s; }
.post-card:nth-child(5) { transition-delay: 0.16s; }
.post-card:nth-child(6) { transition-delay: 0.24s; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1.2rem 2.8rem;
    font-size: 1.3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-primary);
}

.btn-hot {
    background-color: var(--color-hot);
    color: #ffffff;
    border-color: var(--color-hot);
}

.btn-hot:hover {
    background-color: transparent;
    color: var(--color-hot);
}

.btn-lg {
    padding: 1.6rem 4rem;
    font-size: 1.5rem;
}

.btn-subscribe,
.btn-account {
    background-color: var(--color-hot);
    color: #ffffff;
    border: 2px solid var(--color-hot);
    padding: 0.6rem 1.8rem;
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.btn-subscribe:hover,
.btn-account:hover {
    background-color: transparent;
    color: var(--color-hot);
}

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg-dark);
    border-bottom: 3px solid var(--color-primary);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.4rem 3.2rem;
}

.site-logo img {
    max-height: 3.2rem;
    width: auto;
}

.site-logo-text {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--color-text-inverse);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-logo:hover .site-logo-text {
    color: var(--color-primary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.site-nav ul,
.site-nav .nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0;
}

.site-nav li {
    margin: 0;
    padding: 0;
}

.site-nav a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.2rem;
    font-weight: 700;
    padding: 0.6rem 1.6rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all var(--transition);
    display: inline-block;
}

.site-nav a:hover {
    color: #ffffff;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.6rem;
}

.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.6);
    padding: 0.6rem;
    display: flex;
    align-items: center;
    transition: all var(--transition);
}

.search-btn:hover {
    color: #ffffff;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.6rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    transition: all var(--transition);
}

/* --- Hero --- */
.site-hero {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    position: relative;
    overflow: hidden;
}

.site-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
    opacity: 0.15;
    pointer-events: none;
}

.site-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-hot) 0%, transparent 70%);
    opacity: 0.1;
    pointer-events: none;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 12rem 3.2rem 10rem;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 0.95;
    margin-bottom: 3.2rem;
    text-transform: uppercase;
}

.highlight {
    color: var(--color-hot);
}

.hero-description {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    color: rgba(255, 255, 255, 0.65);
    max-width: 580px;
    line-height: 1.5;
    margin-bottom: 4.8rem;
}

.hero-cta-text {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-cta .btn-primary {
    background-color: #ffffff;
    border-color: #ffffff;
    color: var(--color-bg-dark);
    font-weight: 900;
}

.hero-cta .btn-primary:hover {
    background-color: var(--color-hot);
    border-color: var(--color-hot);
    color: #ffffff;
}

/* Hero two-column layout */
.hero-columns {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 6rem;
    align-items: center;
}

.hero-left {
    position: relative;
}

.hero-right {
    display: flex;
    flex-direction: column;
    gap: 2.4rem;
}

/* Stats bar */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 2px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
    padding: 2rem 2.4rem;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.hero-stat:last-child {
    border-right: none;
}

.hero-stat-number {
    font-size: 3.2rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 0.4rem;
    color: #ffffff;
}

.hero-stat-label {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.4);
}

/* Keyword marquee */
.hero-marquee-wrapper {
    overflow: hidden;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding: 1.4rem 0;
}

.hero-marquee {
    display: flex;
    gap: 2.4rem;
    animation: marquee 20s linear infinite;
    white-space: nowrap;
    width: max-content;
}

.hero-marquee span {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.25);
}

.hero-marquee span.hot {
    color: var(--color-hot);
}

.hero-marquee span.blue {
    color: var(--color-primary);
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Latest issue card in hero */
.hero-latest {
    border: 2px solid rgba(255, 255, 255, 0.15);
    padding: 2.8rem;
    position: relative;
}

.hero-latest-label {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-hot);
    margin-bottom: 1.6rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.hero-latest-label::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--color-hot);
    border-radius: 50%;
    animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-latest-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 1.2rem;
}

.hero-latest-excerpt {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.55;
    margin-bottom: 2rem;
}

.hero-latest-link {
    font-size: 1.2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #ffffff;
    border-bottom: 2px solid var(--color-hot);
    padding-bottom: 0.2rem;
    transition: all var(--transition);
}

.hero-latest-link:hover {
    color: var(--color-hot);
}

@media (max-width: 1024px) {
    .hero-columns {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
}

@media (max-width: 768px) {
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-stat {
        padding: 1.6rem 1.2rem;
    }

    .hero-stat-number {
        font-size: 2.4rem;
    }
}

@media (max-width: 640px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }

    .hero-stat {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 1.4rem 2rem;
        text-align: left;
        display: flex;
        align-items: baseline;
        gap: 1.2rem;
    }

    .hero-stat:last-child {
        border-bottom: none;
    }

    .hero-stat-number {
        font-size: 2rem;
    }
}

/* --- Sections --- */
.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 8rem 3.2rem;
}

.section-heading {
    font-size: 1.1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-hot);
    margin-bottom: 4.8rem;
    display: flex;
    align-items: center;
    gap: 1.6rem;
}

.section-heading::after {
    content: '';
    flex: 1;
    height: 3px;
    background-color: var(--color-hot);
}

/* --- Featured Section — color blocked --- */
.featured-section {
    background-color: var(--color-primary);
    color: #ffffff;
}

.featured-section .section-heading {
    color: #ffffff;
}

.featured-section .section-heading::after {
    background-color: rgba(255, 255, 255, 0.2);
}

.featured-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 2px;
}

/* --- Post Feed / Grid --- */
.post-feed {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3.2rem;
}

/* --- Post Card --- */
.post-card {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    overflow: hidden;
    transition: all var(--transition-slow);
    display: flex;
    flex-direction: column;
    position: relative;
}

.post-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-6px);
    box-shadow: 8px 8px 0 var(--color-primary);
}

.post-card.featured {
    background-color: rgba(255, 255, 255, 0.08);
    border: none;
}

.post-card.featured:hover {
    background-color: rgba(255, 255, 255, 0.14);
    transform: translateY(-4px);
    box-shadow: 6px 6px 0 #ffffff;
}

.post-card.featured .post-card-title a {
    color: #ffffff;
}

.post-card.featured .post-card-excerpt {
    color: rgba(255, 255, 255, 0.6);
}

.post-card.featured .post-card-date {
    color: rgba(255, 255, 255, 0.4);
}

.post-card.featured .post-card-footer {
    border-color: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.4);
}

.post-card.featured .post-card-reading-time {
    color: rgba(255, 255, 255, 0.4);
}

.post-card-image-link {
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.post-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: grayscale(30%) contrast(1.1);
}

.post-card:hover .post-card-image {
    transform: scale(1.08);
    filter: grayscale(0%) contrast(1);
}

.post-card-content {
    padding: 2.4rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 1.2rem;
}

.post-card-tag {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-hot);
    background-color: rgba(255, 51, 0, 0.08);
    padding: 0.3rem 0.8rem;
    display: inline-block;
}

.post-card.featured .post-card-tag {
    color: var(--color-lime);
    background-color: rgba(191, 255, 0, 0.12);
}

.post-card-date {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.post-card-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.2rem;
    letter-spacing: -0.03em;
}

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

.post-card-title a:hover {
    color: var(--color-primary);
}

.post-card-excerpt {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    flex: 1;
}

.post-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    padding-top: 1.6rem;
    border-top: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}

.post-card-featured-label {
    color: var(--color-lime);
    font-weight: 800;
}

/* --- Post Article --- */
.post-header {
    padding-top: 8rem;
    background-color: var(--color-bg);
}

.post-header-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 3.2rem;
}

.post-tag {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-hot);
    margin-bottom: 2.4rem;
    background-color: rgba(255, 51, 0, 0.08);
    padding: 0.5rem 1.4rem;
}

.post-title {
    font-size: 5.6rem;
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 2.4rem;
}

.post-excerpt {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    color: var(--color-text-secondary);
    line-height: 1.45;
    margin-bottom: 3.6rem;
    border-left: 4px solid var(--color-primary);
    padding-left: 2.4rem;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 0;
    border-top: 3px solid var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.post-authors {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.4rem;
}

.post-author-avatar {
    width: 3.6rem;
    height: 3.6rem;
    border-radius: 0;
    object-fit: cover;
}

.post-meta-details {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.post-meta-details .sep {
    margin: 0 0.8rem;
    color: var(--color-hot);
}

/* Feature image */
.post-feature-image {
    max-width: 1000px;
    margin: 4.8rem auto 0;
    padding: 0 3.2rem;
}

.post-feature-image img {
    width: 100%;
}

.post-feature-image figcaption {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-top: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* --- Post Content (gh-content) --- */
.post-content {
    max-width: var(--content-width);
    margin: 6rem auto 0;
    padding: 0 3.2rem;
    font-family: var(--font-serif);
    font-size: 1.95rem;
    line-height: 1.8;
    color: var(--color-text);
}

.post-content h2 {
    font-family: var(--font-sans);
    font-size: 3.2rem;
    font-weight: 900;
    margin: 6rem 0 2rem;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--color-text);
    position: relative;
    padding-left: 2rem;
}

.post-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--color-primary);
}

.post-content h3 {
    font-family: var(--font-sans);
    font-size: 2.4rem;
    font-weight: 800;
    margin: 4.8rem 0 1.6rem;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.post-content h4 {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 800;
    margin: 3.2rem 0 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.post-content p {
    margin-bottom: 2.2rem;
}

.post-content a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 2px solid var(--color-primary);
    transition: all var(--transition);
}

.post-content a:hover {
    color: var(--color-hot);
    border-color: var(--color-hot);
}

.post-content strong {
    font-weight: 700;
    color: var(--color-text);
}

.post-content blockquote {
    border-left: none;
    background-color: var(--color-bg-dark);
    color: #ffffff;
    padding: 3.6rem;
    margin: 4rem -2rem;
    font-style: italic;
    font-size: 2.2rem;
    line-height: 1.5;
    position: relative;
}

.post-content blockquote::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-hot) 100%);
}

.post-content blockquote p {
    margin-bottom: 0;
}

.post-content ul,
.post-content ol {
    padding-left: 2rem;
    margin-bottom: 2.2rem;
}

.post-content li {
    margin-bottom: 1rem;
    padding-left: 0.4rem;
}

.post-content li::marker {
    color: var(--color-hot);
    font-weight: 700;
}

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.82em;
    background-color: rgba(0, 85, 255, 0.06);
    color: var(--color-primary);
    padding: 0.2rem 0.6rem;
    border: 1px solid rgba(0, 85, 255, 0.15);
}

.post-content pre {
    background-color: var(--color-bg-dark);
    color: #e2e8f0;
    padding: 2.8rem;
    overflow-x: auto;
    margin: 3.6rem -2rem;
    font-size: 1.4rem;
    line-height: 1.7;
    border-left: 4px solid var(--color-primary);
}

.dark-mode .post-content pre {
    background-color: #050505;
    border: 1px solid var(--color-border);
}

.post-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
    color: inherit;
}

.post-content img {
    margin: 3.6rem 0;
}

.post-content hr {
    border: none;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-hot));
    margin: 6rem 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 3.2rem 0;
    font-family: var(--font-sans);
    font-size: 1.4rem;
}

.post-content th,
.post-content td {
    padding: 1.2rem 1.6rem;
    border: 2px solid var(--color-border);
    text-align: left;
}

.post-content th {
    background-color: var(--color-bg-dark);
    color: #ffffff;
    font-weight: 800;
    text-transform: uppercase;
    font-size: 1.2rem;
    letter-spacing: 0.06em;
}

/* Wide content */
.gh-content .kg-width-wide {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

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

/* --- Post Footer --- */
.post-footer {
    max-width: var(--content-width);
    margin: 6rem auto 0;
    padding: 0 3.2rem 6rem;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 4.8rem;
}

.tag-link {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    background-color: transparent;
    padding: 0.5rem 1.4rem;
    border: 2px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: all var(--transition);
}

.tag-link:hover {
    color: #ffffff;
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.post-cta {
    background-color: var(--color-bg-dark);
    color: #ffffff;
    padding: 5.6rem 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.post-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-hot), var(--color-primary));
}

.post-cta h3 {
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 1.2rem;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.post-cta p {
    font-family: var(--font-serif);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 3.2rem;
    font-size: 1.8rem;
    line-height: 1.5;
}

.post-cta .btn-primary {
    background-color: #ffffff;
    border-color: #ffffff;
    color: var(--color-bg-dark);
}

.post-cta .btn-primary:hover {
    background-color: var(--color-hot);
    border-color: var(--color-hot);
    color: #ffffff;
}

/* --- Related Posts --- */
.related-posts {
    background-color: var(--color-bg-secondary);
    border-top: 4px solid var(--color-text);
}

/* --- Tag & Author Headers --- */
.tag-header {
    background-color: var(--color-primary);
    color: #ffffff;
}

.author-header {
    background-color: var(--color-bg-dark);
    color: #ffffff;
}

.tag-header .section-inner,
.author-header .section-inner {
    padding: 8rem 3.2rem;
}

.tag-title {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    margin-bottom: 1.6rem;
    text-transform: uppercase;
}

.author-name {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 1.6rem;
}

.tag-description,
.author-bio {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: 2rem;
}

.tag-count,
.author-post-count {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 700;
}

.author-avatar {
    width: 10rem;
    height: 10rem;
    border-radius: 0;
    object-fit: cover;
    margin-bottom: 2.4rem;
    border: 4px solid var(--color-primary);
}

.author-meta {
    display: flex;
    gap: 2rem;
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 1.6rem;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.4rem;
    padding-top: 6rem;
    font-size: 1.3rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.pagination a {
    font-weight: 800;
    color: var(--color-text);
    padding: 1rem 2.4rem;
    border: 2px solid var(--color-text);
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.pagination a:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    box-shadow: 4px 4px 0 var(--color-primary);
}

/* --- Error Page --- */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    background-color: var(--color-bg-dark);
    color: #ffffff;
}

.error-inner {
    text-align: center;
    padding: 4rem 3.2rem;
}

.error-code {
    font-size: 14rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-hot));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    letter-spacing: -0.05em;
}

.error-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin: 2rem 0 1.2rem;
    text-transform: uppercase;
}

.error-description {
    font-family: var(--font-serif);
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 3.6rem;
    font-size: 1.8rem;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    border-top: 4px solid var(--color-primary);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 6rem 3.2rem;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: start;
    gap: 4rem;
}

.footer-brand a {
    font-size: 1.6rem;
    font-weight: 900;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.footer-description {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 1.2rem;
    max-width: 320px;
    line-height: 1.55;
}

.footer-nav {
    display: flex;
    gap: 0;
}

.footer-nav ul,
.footer-nav .nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 0;
}

.footer-nav li {
    margin: 0;
    padding: 0;
}

.footer-nav a {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.5);
    padding: 0.4rem 1.4rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    transition: all var(--transition);
}

.footer-nav a:hover {
    color: var(--color-hot);
}

.footer-meta {
    text-align: right;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.3);
}

.footer-meta a {
    color: rgba(255, 255, 255, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-meta a:hover {
    color: #ffffff;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .featured-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .hero-title {
        font-size: 6rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 4.4rem;
    }

    .hero-description {
        font-size: 1.9rem;
    }

    .hero-inner {
        padding: 8rem 2.4rem 6rem;
    }

    .post-title {
        font-size: 3.6rem;
    }

    .site-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .site-nav.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-dark);
        border-bottom: 2px solid var(--color-primary);
        padding: 2rem 3.2rem;
        gap: 0.4rem;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-description {
        max-width: none;
    }

    .footer-nav {
        justify-content: center;
    }

    .footer-meta {
        text-align: center;
    }

    .post-content blockquote {
        margin-left: 0;
        margin-right: 0;
    }

    .post-content pre {
        margin-left: 0;
        margin-right: 0;
    }
}

@media (max-width: 640px) {
    .featured-grid,
    .post-feed {
        grid-template-columns: 1fr;
        gap: 2px;
    }

    .section-inner {
        padding: 5.6rem 2rem;
    }

    .header-inner {
        padding: 1.2rem 2rem;
    }

    .post-header-inner,
    .post-content,
    .post-footer {
        padding-left: 2rem;
        padding-right: 2rem;
    }

    .btn-subscribe,
    .btn-account {
        display: none;
    }

    .post-cta {
        padding: 4rem 2rem;
    }

    .hero-title {
        font-size: 3.6rem;
    }
}

/* --- Ghost editor card styles --- */
.gh-content .kg-callout-card {
    border-radius: 0;
}

.gh-content .kg-bookmark-card {
    border: 2px solid var(--color-border);
}

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