/* ============================================
   THE AMPERSAND — Design System
   "The Digital Broadsheet"
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&family=Noto+Serif:ital,wght@0,100..900;1,100..900&family=Public+Sans:ital,wght@0,100..900;1,100..900&display=swap');

/* --- Design Tokens --- */
:root {
    /* Background & Surface */
    --color-background: #faf9f5;
    --color-surface: #faf9f5;
    --color-surface-dim: #d6dcd2;
    --color-surface-container-lowest: #ffffff;
    --color-surface-container-low: #f4f4ef;
    --color-surface-container: #edeee8;
    --color-surface-container-high: #e6e9e2;
    --color-surface-container-highest: #e0e4dc;

    /* Text */
    --color-on-background: #2f342e;
    --color-on-surface: #2f342e;
    --color-on-surface-variant: #5c605a;

    /* Primary */
    --color-primary: #5f5e5e;
    --color-primary-dim: #535252;
    --color-primary-container: #e5e2e1;
    --color-on-primary: #faf7f6;
    --color-on-primary-container: #525151;

    /* Secondary  */
    --color-secondary: #5f5f5f;
    --color-secondary-container: #e4e2e2;

    /* Tertiary */
    --color-tertiary: #486272;
    --color-tertiary-container: #d0ecff;
    --color-on-tertiary: #f4faff;
    --color-on-tertiary-container: #3e5868;

    /* Outline */
    --color-outline: #787c75;
    --color-outline-variant: #afb3ac;

    /* Error */
    --color-error: #9f403d;

    /* Inverse */
    --color-inverse-surface: #0d0f0d;
    --color-inverse-on-surface: #9d9d9a;

    /* Typography */
    --font-display: 'Newsreader', Georgia, serif;
    --font-headline: 'Newsreader', Georgia, serif;
    --font-body: 'Noto Serif', Georgia, serif;
    --font-label: 'Public Sans', system-ui, sans-serif;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Max widths */
    --max-width-article: 720px;
    --max-width-page: 1280px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-on-background);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* --- Typography Scale --- */
.display-lg {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.headline-lg {
    font-family: var(--font-headline);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.015em;
}

.headline-md {
    font-family: var(--font-headline);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.headline-sm {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.35;
}

.body-lg {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
}

.body-md {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
}

.label-lg {
    font-family: var(--font-label);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.label-md {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.label-sm {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* --- Site Header / Masthead --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 249, 245, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 1px 0 rgba(47, 52, 46, 0.08);
}

.header-inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.masthead-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-on-background);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.masthead-logo .ampersand {
    font-size: 2.25rem;
    font-weight: 300;
    opacity: 0.4;
    line-height: 1;
    transition: opacity 0.3s ease;
}

.masthead-logo:hover .ampersand {
    opacity: 0.7;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.site-nav a {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-on-surface-variant);
    transition: color 0.2s ease;
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-on-background);
    transition: width 0.3s ease;
}

.site-nav a:hover {
    color: var(--color-on-background);
}

.site-nav a:hover::after {
    width: 100%;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-on-background);
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* --- Page Container --- */
.page-container {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* --- Dateline Bar --- */
.dateline-bar {
    background-color: var(--color-surface-container-low);
    padding: var(--space-3) 0;
}

.dateline-bar .page-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dateline-bar .label-sm {
    color: var(--color-on-surface-variant);
}

/* --- Lead Story (Hero) --- */
.lead-story {
    padding: var(--space-12) 0 var(--space-16);
}

.lead-story-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.lead-story-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.lead-story .category-tag {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-tertiary);
    padding-bottom: var(--space-2);
}

.lead-story-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.025em;
    color: var(--color-on-background);
}

.lead-story-excerpt {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-on-surface-variant);
}

.lead-story-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.lead-story-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.lead-story-image:hover img {
    transform: scale(1.02);
}

.lead-story-meta {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.lead-story-meta span {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-outline);
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-on-background);
    transition: gap 0.3s ease;
}

.read-more-link:hover {
    gap: var(--space-4);
}

.read-more-link .arrow {
    transition: transform 0.3s ease;
    font-size: 1.1em;
}

/* --- Section Divider --- */
.section-divider {
    border: none;
    height: 0;
    margin: 0;
}

/* --- Headlines Grid --- */
.headlines-section {
    background-color: var(--color-surface-container-low);
    padding: var(--space-16) 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-10);
}

.section-title {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.section-link {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-outline);
    transition: color 0.2s ease;
}

.section-link:hover {
    color: var(--color-on-background);
}

.headlines-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.headline-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transition: transform 0.3s ease;
}

.headline-card:hover {
    transform: translateY(-2px);
}

.headline-card .category-tag {
    font-family: var(--font-label);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-tertiary);
}

.headline-card .card-title {
    font-family: var(--font-headline);
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: -0.005em;
    color: var(--color-on-background);
}

.headline-card .card-excerpt {
    font-family: var(--font-body);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
}

/* --- Research & Expression (Two-column) --- */
.research-section {
    padding: var(--space-16) 0;
}

.research-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-12);
}

.research-feature {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.research-feature-image {
    aspect-ratio: 3/4;
    overflow: hidden;
    position: relative;
}

.research-feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.research-feature:hover .research-feature-image img {
    transform: scale(1.02);
}

.research-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-10);
}

.research-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: start;
    transition: transform 0.3s ease;
}

.research-item:hover {
    transform: translateX(4px);
}

.research-item-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.research-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.research-item:hover .research-item-image img {
    transform: scale(1.03);
}

.research-item-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* --- Collaborative Section --- */
.collaborative-section {
    background-color: var(--color-inverse-surface);
    color: var(--color-surface-container-lowest);
    padding: var(--space-16) 0;
}

.collaborative-inner {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.collaborative-section .section-title {
    color: var(--color-surface-container-lowest);
}

.collaborative-section .description {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-inverse-on-surface);
    font-style: italic;
}

.btn-primary {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-container));
    color: var(--color-on-primary);
    padding: var(--space-4) var(--space-8);
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(47, 52, 46, 0.15);
}

/* --- Opinion Section --- */
.opinion-section {
    padding: var(--space-16) 0;
    background-color: var(--color-surface-container-low);
}

.opinion-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
}

.opinion-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-8);
    background-color: var(--color-surface);
    transition: transform 0.3s ease;
}

.opinion-card:hover {
    transform: translateY(-3px);
}

.opinion-card .card-title {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.opinion-card .card-excerpt {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-on-surface-variant);
    font-style: italic;
}

.opinion-card .author {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-outline);
    margin-top: var(--space-2);
}

/* --- Pull Quote --- */
.pull-quote {
    padding: var(--space-10) 0;
    display: flex;
    align-items: stretch;
    gap: var(--space-8);
    max-width: var(--max-width-page);
    margin: var(--space-16) auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.pull-quote-bar {
    width: 4px;
    flex-shrink: 0;
    background-color: var(--color-surface-dim);
}

.pull-quote-text {
    font-family: var(--font-headline);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-on-surface-variant);
    font-style: italic;
}

/* --- Site Footer --- */
.site-footer {
    background-color: var(--color-surface-container);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand .masthead-logo {
    margin-bottom: var(--space-4);
}

.footer-brand .tagline {
    font-family: var(--font-body);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
    max-width: 360px;
}

.footer-col h4 {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-on-background);
    margin-bottom: var(--space-4);
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col a {
    font-family: var(--font-label);
    font-size: 0.75rem;
    color: var(--color-on-surface-variant);
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--color-on-background);
}

.footer-bottom {
    padding-top: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom .copyright {
    font-family: var(--font-label);
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-outline);
}

/* --- Article Page Layout --- */
.article-hero {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
}

.article-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-16) var(--space-6) var(--space-12);
    background: linear-gradient(to top, rgba(13, 15, 13, 0.85), transparent);
    color: var(--color-surface-container-lowest);
}

.article-hero-content {
    max-width: var(--max-width-article);
    margin: 0 auto;
}

.article-hero .category-tag {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-tertiary-container);
    margin-bottom: var(--space-4);
}

.article-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
}

.article-hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-inverse-on-surface);
    max-width: 600px;
}

.article-meta-bar {
    background-color: var(--color-surface-container-low);
    padding: var(--space-6) 0;
}

.article-meta-inner {
    max-width: var(--max-width-article);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.article-meta-left {
    display: flex;
    gap: var(--space-8);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.meta-item .meta-label {
    font-family: var(--font-label);
    font-size: 0.5625rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-outline);
}

.meta-item .meta-value {
    font-family: var(--font-label);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-on-background);
}

/* Article Body */
.article-body {
    max-width: var(--max-width-article);
    margin: 0 auto;
    padding: var(--space-12) var(--space-6) var(--space-20);
}

.article-body p {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--color-on-background);
    margin-bottom: var(--space-6);
}

.article-body h2 {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin-top: var(--space-12);
    margin-bottom: var(--space-6);
}

.article-body h3 {
    font-family: var(--font-headline);
    font-size: 1.375rem;
    font-weight: 500;
    line-height: 1.3;
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.article-body blockquote {
    margin: var(--space-10) 0;
    padding: var(--space-8) 0 var(--space-8) var(--space-8);
    display: flex;
    gap: var(--space-6);
}

.article-body blockquote::before {
    content: '';
    display: block;
    width: 4px;
    flex-shrink: 0;
    background-color: var(--color-surface-dim);
}

.article-body blockquote p {
    font-family: var(--font-headline);
    font-size: 1.375rem;
    font-weight: 400;
    line-height: 1.5;
    font-style: italic;
    color: var(--color-on-surface-variant);
    margin-bottom: 0;
}

.article-body .figure {
    margin: var(--space-10) calc(-1 * var(--space-6));
}

.article-body .figure img {
    width: 100%;
}

.article-body .figure figcaption {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    letter-spacing: 0.04em;
    color: var(--color-outline);
    padding: var(--space-3) var(--space-6);
    line-height: 1.5;
}

/* Author Bio */
.author-bio {
    background-color: var(--color-surface-container-low);
    padding: var(--space-10);
    margin-top: var(--space-12);
    display: flex;
    gap: var(--space-8);
    align-items: flex-start;
}

.author-bio .author-avatar {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    background-color: var(--color-surface-container-high);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-outline);
}

.author-bio .author-name {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.author-bio .author-description {
    font-family: var(--font-body);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
}

.author-bio .author-links {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-3);
}

.author-bio .author-links a {
    font-family: var(--font-label);
    font-size: 0.6875rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-tertiary);
    transition: color 0.2s ease;
}

.author-bio .author-links a:hover {
    color: var(--color-on-background);
}

/* Further Reading */
.further-reading {
    max-width: var(--max-width-article);
    margin: 0 auto;
    padding: 0 var(--space-6) var(--space-16);
}

.further-reading h3 {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-8);
}

.further-reading-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.further-reading-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-6);
    background-color: var(--color-surface-container-low);
    transition: transform 0.3s ease;
}

.further-reading-card:hover {
    transform: translateY(-2px);
}

.further-reading-card .category-tag {
    font-family: var(--font-label);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-tertiary);
}

.further-reading-card .card-title {
    font-family: var(--font-headline);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.35;
}

.further-reading-card .author {
    font-family: var(--font-label);
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-outline);
}

/* --- Support Banner --- */
.support-banner {
    background-color: var(--color-surface-container-high);
    padding: var(--space-10);
    text-align: center;
    max-width: var(--max-width-article);
    margin: var(--space-10) auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.support-banner h3 {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    font-weight: 500;
}

.support-banner p {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--color-on-surface-variant);
    max-width: 480px;
}

/* --- Photo Essay Grid --- */
.photo-grid {
    display: grid;
    gap: var(--space-2);
    max-width: 1000px;
    margin: var(--space-10) auto;
}

.photo-grid.two-col {
    grid-template-columns: 1fr 1fr;
}

.photo-grid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .lead-story-inner {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .lead-story-inner .lead-story-image {
        order: -1;
    }

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

    .research-grid {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
    }

    .further-reading-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-6: 1.25rem;
        --space-8: 1.5rem;
        --space-12: 2.5rem;
        --space-16: 3rem;
    }

    .nav-toggle {
        display: block;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        padding: var(--space-6);
        gap: var(--space-6);
        box-shadow: 0 10px 40px rgba(47, 52, 46, 0.08);
    }

    .site-nav.open {
        display: flex;
    }

    .headlines-grid {
        grid-template-columns: 1fr;
    }

    .opinion-grid {
        grid-template-columns: 1fr;
    }

    .research-item {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
    }

    .article-hero {
        height: 50vh;
    }

    .article-meta-left {
        flex-direction: column;
        gap: var(--space-4);
    }

    .further-reading-grid {
        grid-template-columns: 1fr;
    }

    .author-bio {
        flex-direction: column;
    }
}