/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #fafaf9;
    --color-bg-alt: #f0eeeb;
    --color-bg-dark: #1a1a2e;
    --color-text: #2d2d2d;
    --color-text-light: #6b6b6b;
    --color-text-muted: #999;
    --color-primary: #1a6b4a;
    --color-primary-light: #2a9d6e;
    --color-primary-dark: #0f4a33;
    --color-accent: #d4a03c;
    --color-accent-light: #f0c75e;
    --color-border: #e0ddd8;
    --color-card: #ffffff;
    --color-card-hover: #f8f7f5;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-light); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text);
}

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

.logo-icon {
    display: flex;
    align-items: center;
    color: var(--color-primary);
}

.logo-icon svg {
    display: block;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-links a {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--color-primary);
    background: rgba(26,107,74,0.06);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a2e1f 0%, #1a4a35 30%, #1a6b4a 60%, #2a9d6e 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(212,160,60,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(42,157,110,0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(26,26,46,0.3) 0%, transparent 60%);
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 24px 80px;
    max-width: 900px;
}

.hero-tag {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: rgba(255,255,255,0.85);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 900;
    color: #fff;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    max-width: 680px;
    margin: 0 auto 48px;
    line-height: 1.8;
    font-weight: 300;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.hero-cta {
    display: inline-block;
    padding: 14px 36px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 50px;
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.hero-cta:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
    transform: translateY(-2px);
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-dark {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.8);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 4px 16px;
    background: rgba(26,107,74,0.08);
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-dark .section-title { color: #fff; }

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== OVERVIEW ===== */
.overview-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}

.overview-main p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--color-text);
}

.overview-main p strong {
    color: var(--color-primary-dark);
}

.info-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.info-card.accent {
    border-left: 4px solid var(--color-primary);
}

.info-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-text);
}

.info-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.info-card li {
    font-size: 0.9rem;
    color: var(--color-text-light);
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.info-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
}

.info-card li strong {
    color: var(--color-text);
}

/* ===== ECONOMICS ===== */
.economics-intro {
    max-width: 800px;
    margin: 0 auto 48px;
    text-align: center;
}

.economics-intro p {
    font-size: 1.05rem;
    color: var(--color-text-light);
    line-height: 1.85;
}

.theories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.theory-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.theory-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.theory-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26,107,74,0.07);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    color: var(--color-primary);
}

.theory-icon svg {
    width: 20px;
    height: 20px;
}

.theory-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.theory-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.theory-era {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(26,107,74,0.06);
    padding: 4px 12px;
    border-radius: 50px;
}

.economics-quote {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.economics-quote blockquote {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 16px;
    position: relative;
}

.economics-quote blockquote::before {
    content: '"';
    font-size: 4rem;
    color: var(--color-primary);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -10px;
    font-family: var(--font-serif);
}

.economics-quote cite {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-style: normal;
}

/* ===== INDICATORS ===== */
.indicators-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.indicator-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.indicator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.indicator-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.indicator-trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
}

.indicator-trend.up {
    color: #16a34a;
    background: rgba(22,163,74,0.08);
}

.indicator-trend.down {
    color: #16a34a;
    background: rgba(22,163,74,0.08);
}

.indicator-chart {
    height: 200px;
    margin-bottom: 16px;
    position: relative;
}

.indicator-desc {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== TABLE ===== */
.indicators-table-wrapper {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.table-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.table-scroll {
    overflow-x: auto;
}

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

.indicators-table th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.indicators-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    white-space: nowrap;
}

.indicators-table tbody tr:hover {
    background: var(--color-card-hover);
}

.indicators-table tbody tr:last-child td {
    border-bottom: none;
}

.table-source {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: 16px;
    text-align: center;
    font-style: italic;
}

/* ===== TIMELINE ===== */
.timeline {
    position: relative;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent), var(--color-primary-light));
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
    position: absolute;
    left: -60px;
    top: 0;
    width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-year {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 800;
    box-shadow: 0 0 0 4px var(--color-bg-alt), var(--shadow-md);
}

.timeline-future .timeline-year {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: var(--color-bg-dark);
}

.timeline-content {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
}

.timeline-future .timeline-content {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(212,160,60,0.03), rgba(240,199,94,0.06));
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tag {
    padding: 3px 12px;
    background: rgba(26,107,74,0.06);
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-future {
    background: rgba(212,160,60,0.1);
    color: #b8860b;
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.timeline-stat {
    font-size: 0.85rem;
    color: var(--color-text);
    padding: 12px 16px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    line-height: 1.6;
}

.timeline-future .timeline-stat {
    background: rgba(212,160,60,0.08);
}

/* ===== REGIONS ===== */
.regions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.region-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.region-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.region-header {
    padding: 24px;
    color: #fff;
}

.region-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.region-pop {
    font-size: 0.8rem;
    opacity: 0.85;
    font-weight: 500;
}

.region-body {
    padding: 24px;
}

.region-body p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.75;
    margin-bottom: 20px;
}

.region-metrics {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.metric {
    font-size: 0.82rem;
    color: var(--color-text);
    padding: 8px 12px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    line-height: 1.4;
}

.metric strong {
    color: var(--color-primary-dark);
}

/* ===== CHALLENGES ===== */
.challenges-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.challenge-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.challenge-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.challenge-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-primary);
    opacity: 0.12;
    position: absolute;
    top: 16px;
    right: 24px;
    line-height: 1;
}

.challenge-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.challenge-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.75;
}

/* ===== FUTURE ===== */
.future-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.future-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.future-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.future-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26,107,74,0.07);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    color: var(--color-primary);
    transition: var(--transition);
}

.future-card:hover .future-icon {
    background: rgba(26,107,74,0.12);
    color: var(--color-primary-light);
}

.future-icon svg {
    width: 22px;
    height: 22px;
}

.future-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.future-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.75;
}

/* ===== SCENARIOS ===== */
.future-scenarios {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

.future-scenarios h3 {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.scenarios-container {
    display: flex;
    justify-content: center;
    gap: 64px;
    align-items: flex-end;
    height: 300px;
    padding-bottom: 20px;
    margin-bottom: 24px;
}

.scenario {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.scenario-bar {
    width: 80px;
    height: var(--bar-height);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 16px;
    transition: height 1s ease;
}

.scenario-bar.optimistic {
    background: linear-gradient(180deg, #16a34a, #22c55e);
}

.scenario-bar.baseline {
    background: linear-gradient(180deg, #2563eb, #3b82f6);
}

.scenario-bar.pessimistic {
    background: linear-gradient(180deg, #dc2626, #ef4444);
}

.scenario-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
}

.scenario-label {
    text-align: center;
    max-width: 160px;
}

.scenario-label strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.scenario-label p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.scenarios-note {
    text-align: center;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ===== SOURCES ===== */
.sources-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.source-group h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.source-group ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.source-group li {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.source-group li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.5;
}

.source-group li em {
    color: rgba(255,255,255,0.5);
}

/* ===== FOOTER ===== */
.footer {
    background: #111122;
    padding: 40px 0;
    text-align: center;
}

.footer-content p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 8px;
}

.footer-note {
    font-size: 0.78rem !important;
    font-style: italic;
}

.footer-copy {
    font-size: 0.75rem !important;
    color: rgba(255,255,255,0.3) !important;
    margin-top: 8px;
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .theories-grid,
    .regions-grid,
    .challenges-grid,
    .future-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sources-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

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

    .theories-grid,
    .indicators-grid,
    .regions-grid,
    .challenges-grid,
    .future-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 24px;
    }

    .hero-stat-number {
        font-size: 1.8rem;
    }

    .section {
        padding: 64px 0;
    }

    .timeline {
        padding-left: 48px;
    }

    .timeline::before {
        left: 16px;
    }

    .timeline-marker {
        left: -48px;
    }

    .timeline-year {
        width: 36px;
        height: 36px;
        font-size: 0.6rem;
    }

    .timeline-content {
        padding: 24px;
    }

    .scenarios-container {
        gap: 32px;
        height: 240px;
    }

    .scenario-bar {
        width: 60px;
    }

    .future-scenarios {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .scenarios-container {
        gap: 20px;
        height: 200px;
    }

    .scenario-bar {
        width: 50px;
    }

    .scenario-value {
        font-size: 0.9rem;
    }
}