:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --ink: #26251e;
    --body: #5a5852;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --success: #1f8a65;
    --error: #cf2d56;
    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-pill: 9999px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    font-weight: 400;
}

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

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

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

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.wordmark {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.25px;
    line-height: 1;
}

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

.primary-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.primary-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

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

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

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

/* HERO */
.hero-band {
    background: var(--canvas);
    padding: 80px 0 64px;
    border-bottom: 1px solid var(--hairline-soft);
}

.hero-band .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-content {}

.badge-pill {
    display: inline-flex;
    align-items: center;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
    margin-bottom: 20px;
}

.hero-h1 {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--ink);
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    max-width: 480px;
    margin-bottom: 32px;
}

.hero-img-wrap {
    border-radius: var(--rounded-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    aspect-ratio: 4/3;
}

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

/* SECTIONS */
.section { padding: 80px 0; }

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

.section-title {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 12px;
}

.section-sub {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    max-width: 560px;
    margin-bottom: 40px;
}

/* CARDS */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.cards-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    transition: border-color 0.15s;
}

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

.feature-card .card-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: var(--rounded-sm);
    margin-bottom: 16px;
}

.card-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 8px;
}

.card-body {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 16px;
}

.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
}

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

/* DIFFICULTY PILLS */
.diff-pill {
    display: inline-flex;
    align-items: center;
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.diff-easy { background: #9fc9a2; color: var(--ink); }
.diff-moderate { background: #dfa88f; color: var(--ink); }
.diff-hard { background: #c0a8dd; color: var(--ink); }

/* INFO BOX */
.info-box {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 20px 24px;
    margin: 24px 0;
}

.info-box-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.info-item {}

.info-item dt {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 2px;
}

.info-item dd {
    font-size: 14px;
    color: var(--ink);
    font-family: 'JetBrains Mono', monospace;
}

/* ARTICLE PAGE */
.article-header {
    padding: 64px 0 40px;
    border-bottom: 1px solid var(--hairline-soft);
}

.article-header .badge-pill { margin-bottom: 16px; }

.article-h1 {
    font-size: 42px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--ink);
    margin-bottom: 16px;
    max-width: 760px;
}

.article-lead {
    font-size: 18px;
    color: var(--body);
    line-height: 1.6;
    max-width: 680px;
    margin-bottom: 24px;
}

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

.article-meta span { display: flex; align-items: center; gap: 4px; }

.article-hero-img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
    margin: 40px 0;
}

.article-body {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    padding: 0 0 80px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 12px;
    line-height: 1.25;
}

.article-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 10px;
    line-height: 1.4;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 16px;
    max-width: 660px;
}

.article-content ul, .article-content ol {
    padding-left: 20px;
    margin-bottom: 16px;
}

.article-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 6px;
}

.article-content a { color: var(--primary); }
.article-content a:hover { color: var(--primary-active); }

.article-sidebar {}

.sidebar-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 20px;
    margin-bottom: 16px;
    position: sticky;
    top: 80px;
}

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

.sidebar-box dl { display: grid; gap: 8px; }
.sidebar-box dt { font-size: 11px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--muted); }
.sidebar-box dd { font-size: 14px; color: var(--ink); font-family: 'JetBrains Mono', monospace; margin-top: 1px; }

.sidebar-links { list-style: none; padding: 0; display: grid; gap: 6px; }
.sidebar-links li a { font-size: 14px; color: var(--body); line-height: 1.4; }
.sidebar-links li a:hover { color: var(--primary); }

/* TRAIL TABLE */
.trail-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin: 20px 0;
}

.trail-table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    padding: 8px 12px;
    border-bottom: 1px solid var(--hairline);
    background: var(--canvas-soft);
}

.trail-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--hairline-soft);
    color: var(--body);
    vertical-align: top;
}

.trail-table tr:last-child td { border-bottom: none; }
.trail-table tbody tr:hover td { background: var(--canvas-soft); }

/* FORM */
.contact-form-section { background: var(--canvas-soft); border-top: 1px solid var(--hairline); padding: 80px 0; }

.form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 40px;
    max-width: 640px;
}

.form-title {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-sub {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 28px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    padding: 12px 16px;
    font-size: 14px;
    color: var(--ink);
    font-family: inherit;
    height: 44px;
    transition: border-color 0.15s;
    outline: none;
}

.form-group textarea { height: 100px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--ink); }

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--rounded-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

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

.btn-secondary:hover { border-color: var(--ink); }

.form-message {
    display: none;
    padding: 12px 16px;
    border-radius: var(--rounded-md);
    font-size: 14px;
    margin-top: 12px;
}

.form-message.success { background: #d4edda; color: #1f8a65; border: 1px solid #9fc9a2; }
.form-message.loading { background: var(--canvas-soft); color: var(--muted); border: 1px solid var(--hairline); }

/* BREADCRUMB */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    padding: 16px 0 0;
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--muted-soft); }

/* DIVIDER */
.divider { height: 1px; background: var(--hairline-soft); margin: 40px 0; }

/* PAGE: about / privacy / terms */
.page-header { padding: 64px 0 32px; border-bottom: 1px solid var(--hairline-soft); }
.page-h1 { font-size: 42px; font-weight: 400; letter-spacing: -1px; color: var(--ink); margin-bottom: 12px; }
.page-lead { font-size: 16px; color: var(--body); line-height: 1.6; max-width: 560px; }

.page-body { padding: 48px 0 80px; max-width: 760px; }
.page-body h2 { font-size: 22px; font-weight: 400; letter-spacing: -0.11px; color: var(--ink); margin: 36px 0 10px; }
.page-body h3 { font-size: 16px; font-weight: 600; color: var(--ink); margin: 24px 0 8px; }
.page-body p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 14px; }
.page-body ul { padding-left: 18px; margin-bottom: 14px; }
.page-body li { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 6px; }

/* COOKIE BANNER */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ink);
    color: var(--canvas);
    padding: 16px 0;
    z-index: 9999;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: none;
}

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

.cookie-inner p { font-size: 14px; color: #d0cfc8; line-height: 1.5; }
.cookie-inner p a { color: var(--canvas); text-decoration: underline; }

.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

.cookie-actions .btn-primary {
    background: var(--primary);
    color: var(--on-primary);
}

.cookie-actions .btn-secondary {
    background: transparent;
    color: var(--canvas);
    border-color: rgba(255,255,255,0.3);
}

.cookie-actions .btn-secondary:hover { border-color: var(--canvas); }

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

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 32px;
    padding-bottom: 48px;
}

.footer-wordmark {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
    letter-spacing: -0.2px;
}

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

.footer-col { display: flex; flex-direction: column; gap: 6px; }

.footer-heading {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

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

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

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

.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding: 16px 0;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--muted);
}

.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* DISCLAIMER BAND */
.disclaimer-band {
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline-soft);
    border-bottom: 1px solid var(--hairline-soft);
    padding: 16px 0;
}

.disclaimer-band p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.4;
}

/* SCHEMA IMG CAPTION */
figcaption {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    margin-top: 8px;
}

figure { margin: 28px 0; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .hero-h1 { font-size: 44px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
    .article-body { grid-template-columns: 1fr; }
    .article-sidebar { display: none; }
}

@media (max-width: 768px) {
    .hero-band .container { grid-template-columns: 1fr; }
    .hero-img-wrap { display: none; }
    .hero-h1 { font-size: 36px; letter-spacing: -0.8px; }
    .section-title { font-size: 28px; }
    .primary-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: 16px 24px; gap: 12px; }
    .primary-nav.open { display: flex; }
    .nav-toggle { display: flex; }
    .site-header { position: relative; }
    .cards-grid, .cards-grid-2 { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .article-h1 { font-size: 30px; }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
    .form-wrap { padding: 24px; }
    .info-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }
    .hero-h1 { font-size: 28px; }
}