:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --success: #1f8a65;
    --error: #cf2d56;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

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

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    color: var(--primary);
}

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

ul, ol {
    list-style: none;
}

address {
    font-style: normal;
}

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

.section {
    padding: 80px 0;
}

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(32px, 5vw, 72px);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(24px, 3vw, 36px);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h3 {
    font-size: clamp(20px, 2.5vw, 26px);
    line-height: 1.25;
    letter-spacing: -0.013px;
}

h4 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0;
}

p {
    color: var(--body);
    font-size: 16px;
    line-height: 1.5;
}

.site-nav {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.nav-logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    text-decoration: none;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.logo-sub {
    font-size: 11px;
    font-weight: 400;
    color: var(--muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu > li > a {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    line-height: 1.4;
    transition: color 0.15s ease;
}

.nav-menu > li > a:hover {
    color: var(--primary);
}

.nav-has-dropdown {
    position: relative;
}

.nav-has-dropdown:hover .nav-dropdown {
    display: block;
}

.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 8px;
    min-width: 240px;
    box-shadow: 0 4px 16px rgba(38, 37, 30, 0.08);
}

.nav-dropdown li a {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--body);
    border-radius: var(--radius-sm);
    transition: background 0.1s;
}

.nav-dropdown li a:hover {
    background: var(--canvas);
    color: var(--ink);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.2s;
}

.hero-band {
    background: var(--canvas);
    padding: 96px 0 80px;
    text-align: center;
}

.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 24px;
}

.hero-band h1 {
    max-width: 760px;
    margin: 0 auto 20px;
}

.hero-band .hero-sub {
    max-width: 560px;
    margin: 0 auto 40px;
    font-size: 18px;
    color: var(--muted);
}

.hero-image {
    max-width: 900px;
    margin: 48px auto 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.hero-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

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

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.article-card:hover {
    border-color: var(--hairline-strong);
}

.article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.article-card-body {
    padding: 24px;
}

.article-card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    margin-bottom: 12px;
}

.article-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--ink);
}

.article-card p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 20px;
}

.article-card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 1px;
    transition: color 0.15s, border-color 0.15s;
}

.article-card-link:hover {
    color: var(--primary);
    border-color: var(--primary);
}

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

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 16px;
    color: var(--ink);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0;
}

.feature-card p {
    font-size: 14px;
    line-height: 1.5;
}

.info-band {
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.info-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.info-split.reverse {
    direction: rtl;
}

.info-split.reverse > * {
    direction: ltr;
}

.info-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.info-image img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.info-text h2 {
    margin-bottom: 16px;
}

.info-text p {
    margin-bottom: 16px;
}

.info-text ul {
    list-style: disc;
    padding-left: 20px;
}

.info-text ul li {
    color: var(--body);
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 8px;
}

.trails-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.trail-item {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.trail-item h4 {
    font-size: 18px;
    color: var(--ink);
    margin-bottom: 8px;
}

.trail-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.trail-badge {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    background: var(--surface-strong);
    color: var(--muted);
    padding: 3px 8px;
    border-radius: var(--radius-pill);
}

.trail-badge.green { background: #d1f0da; color: #1a6b3c; }
.trail-badge.blue { background: #d1e8f0; color: #1a4a6b; }
.trail-badge.red { background: #f5d1d1; color: #6b1a1a; }
.trail-badge.yellow { background: #f5ead1; color: #6b4c1a; }
.trail-badge.black { background: #e0e0e0; color: #1a1a1a; }

.trail-item p {
    font-size: 14px;
}

.article-page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}

.article-page-header .breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 16px;
}

.article-page-header .breadcrumb a {
    color: var(--muted);
}

.article-page-header .breadcrumb a:hover {
    color: var(--ink);
}

.article-page-header h1 {
    max-width: 720px;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--muted);
    align-items: center;
    flex-wrap: wrap;
}

.article-content {
    max-width: 720px;
}

.article-body {
    padding: 48px 0;
}

.article-body h2 {
    font-size: 28px;
    margin: 40px 0 16px;
}

.article-body h3 {
    font-size: 22px;
    margin: 32px 0 12px;
}

.article-body p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.6;
}

.article-body ul, .article-body ol {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 20px;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    color: var(--body);
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 8px;
}

.article-body .note-box {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--ink);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 15px;
    color: var(--body);
}

.article-body .data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}

.article-body .data-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--hairline-strong);
}

.article-body .data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--hairline-soft);
    color: var(--body);
}

.article-body .data-table tr:last-child td {
    border-bottom: none;
}

.article-image {
    margin: 32px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.article-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-image figcaption {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--muted);
    background: var(--canvas-soft);
}

.article-sources {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--hairline);
}

.article-sources h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 12px;
}

.article-sources ul {
    list-style: disc;
    padding-left: 20px;
}

.article-sources li {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 6px;
}

.article-sources a {
    color: var(--muted);
    text-decoration: underline;
    text-decoration-color: var(--hairline-strong);
}

.article-sources a:hover {
    color: var(--ink);
}

.article-sidebar {
    position: sticky;
    top: 88px;
}

.toc-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.toc-box h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 12px;
}

.toc-box ul {
    list-style: none;
    padding: 0;
}

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

.toc-box a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
    border-bottom: 1px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}

.toc-box a:hover {
    color: var(--ink);
    border-color: var(--hairline-strong);
}

.related-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.related-box h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 12px;
}

.related-box ul {
    list-style: none;
    padding: 0;
}

.related-box li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--hairline-soft);
}

.related-box li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.related-box a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
}

.related-box a:hover {
    color: var(--ink);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    align-items: start;
}

.contact-section {
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-form {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 16px;
    height: 44px;
    transition: border-color 0.15s;
    outline: none;
}

.form-group textarea {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--ink);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--error);
}

.field-error {
    font-size: 12px;
    color: var(--error);
    margin-top: 4px;
    display: none;
}

.form-status {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
}

.form-status.success {
    background: #d4edda;
    color: #1f8a65;
    border: 1px solid #b8dfc8;
    display: block;
}

.form-status.loading {
    background: var(--canvas-soft);
    color: var(--muted);
    border: 1px solid var(--hairline);
    display: block;
}

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-secondary:hover {
    background: var(--canvas-soft);
}

.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}

.page-header h1 {
    margin-bottom: 16px;
}

.page-content {
    padding: 48px 0 80px;
}

.page-content h2 {
    font-size: 26px;
    margin: 40px 0 14px;
}

.page-content h3 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0;
    margin: 28px 0 10px;
}

.page-content p {
    margin-bottom: 18px;
    max-width: 720px;
}

.page-content ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 18px;
    max-width: 720px;
}

.page-content li {
    color: var(--body);
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 8px;
}

.page-content .updated-date {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 32px;
}

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--hairline);
}

.footer-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    display: block;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a,
.footer-col address a {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s;
}

.footer-col ul li a:hover,
.footer-col address a:hover {
    color: var(--ink);
}

.footer-col address p {
    font-size: 14px;
    color: var(--body);
    margin-bottom: 6px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 4px;
}

.footer-disclaimer {
    font-size: 12px;
    color: var(--muted-soft);
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface-card);
    border-top: 1px solid var(--hairline);
    padding: 16px 24px;
    z-index: 1000;
    display: none;
}

.cookie-banner.visible {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-content p {
    font-size: 14px;
    color: var(--body);
    flex: 1;
}

.cookie-content a {
    color: var(--ink);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 12px;
}

.schema-section {
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.stats-band {
    text-align: center;
    padding: 64px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-item {
    padding: 24px;
}

.stat-number {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--ink);
    display: block;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 14px;
    color: var(--muted);
}

@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-container {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        padding: 16px 24px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-dropdown {
        position: static;
        display: block;
        box-shadow: none;
        border: none;
        padding: 8px 0 0 16px;
        min-width: auto;
    }
    .nav-hamburger {
        display: flex;
    }
    .info-split {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .info-split.reverse {
        direction: ltr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .trails-list {
        grid-template-columns: 1fr;
    }
    .hero-band {
        padding: 64px 0 48px;
    }
    .hero-image img {
        height: 240px;
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }
}