:root {
    --primary: #3ecfc4;
    --primary-hover: #2fb0a6;
    --gold: #c9a668;
    --gold-soft: rgba(201, 166, 104, 0.14);
    --bg-dark: #0a0f1a;
    --bg-card: #101a2c;
    --bg-card-hover: #172542;
    --text-main: #eef2f7;
    --text-muted: #93a2b8;
    --border-color: #24304a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif; background: var(--bg-dark); color: var(--text-main); line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* Rope / route divider */
.rope-divider { height: 3px; width: 100%; background-image: repeating-linear-gradient(90deg, var(--gold) 0, var(--gold) 10px, transparent 10px, transparent 20px); opacity: 0.5; }

/* Navbar */
.navbar { position: fixed; top: 0; width: 100%; height: 70px; background: rgba(10, 15, 26, 0.9); backdrop-filter: blur(10px); z-index: 1000; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 0 5%; }
.nav-brand { font-size: 22px; font-weight: bold; color: var(--text-main); display: flex; align-items: center; gap: 10px; letter-spacing: 0.5px; }
.nav-brand .icon-mark { color: var(--primary); flex-shrink: 0; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { font-weight: 500; transition: color 0.3s; font-size: 15px; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; gap: 15px; align-items: center; }
.btn { display: inline-block; padding: 10px 24px; border-radius: 6px; font-weight: 600; text-align: center; transition: all 0.3s; cursor: pointer; border: none; }
.btn-primary { background: var(--primary); color: #04211d; box-shadow: 0 0 15px rgba(62, 207, 196, 0.35); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 0 22px rgba(62, 207, 196, 0.55); }
.btn-gold { background: var(--gold); color: #2a1f0d; }
.btn-gold:hover { background: #d9b87b; transform: translateY(-2px); }
.btn-secondary { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-secondary:hover { background: rgba(62, 207, 196, 0.1); transform: translateY(-2px); }
.btn-outline { border: 1px solid var(--text-muted); color: var(--text-main); padding: 8px 16px; background: transparent; }
.btn-outline:hover { border-color: var(--text-main); }
.menu-toggle { display: none; font-size: 26px; cursor: pointer; color: var(--text-main); background: none; border: none; }
.nav-menu-wrapper { display: flex; align-items: center; gap: 26px; }

/* Sections */
section { padding: 100px 5%; max-width: 1200px; margin: 0 auto; }
.section-title { text-align: center; font-size: 34px; margin-bottom: 18px; }
.section-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 56px; font-size: 17px; max-width: 640px; margin-inline: auto; }
.eyebrow { display: inline-block; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); margin-bottom: 10px; }

/* Hero: fjord night sky + compass rose */
.hero {
    display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 92vh; text-align: center; padding-top: 120px;
    position: relative;
    background:
        radial-gradient(circle at 50% 30%, rgba(62, 207, 196, 0.08) 0%, transparent 60%),
        linear-gradient(180deg, #0a0f1a 0%, #060a12 100%);
    overflow: hidden;
}
.hero .compass-bg {
    position: absolute; top: 50%; right: -8%; transform: translateY(-50%);
    width: 620px; height: 620px; opacity: 0.07; color: var(--gold);
    pointer-events: none;
    animation: compass-spin 90s linear infinite;
}
@keyframes compass-spin { from { transform: translateY(-50%) rotate(0deg); } to { transform: translateY(-50%) rotate(360deg); } }
.hero .compass-bg-left {
    position: absolute; top: 8%; left: -10%;
    width: 340px; height: 340px; opacity: 0.05; color: var(--primary);
    pointer-events: none;
}
.promo-tag { background: var(--gold-soft); color: var(--gold); padding: 6px 20px; border-radius: 20px; font-size: 14px; font-weight: bold; margin-bottom: 28px; border: 1px solid rgba(201, 166, 104, 0.4); display: inline-block; position: relative; z-index: 1; }
.hero h1 { font-size: 50px; margin-bottom: 22px; line-height: 1.25; letter-spacing: -0.5px; position: relative; z-index: 1; max-width: 900px; }
.hero h1 .accent { color: var(--primary); }
.hero p.lead { font-size: 19px; color: var(--text-muted); max-width: 760px; margin-bottom: 36px; position: relative; z-index: 1; }
.hero-btns { display: flex; gap: 18px; position: relative; z-index: 1; }
.hero-stats { display: flex; justify-content: center; gap: 24px; margin: 22px 0 40px; flex-wrap: wrap; color: var(--text-main); font-size: 14.5px; font-weight: 500; position: relative; z-index: 1; }
.hero-stats span { background: rgba(255,255,255,0.04); padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border-color); display: flex; align-items: center; gap: 8px; }
.hero-stats svg { color: var(--primary); flex-shrink: 0; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.card { background: var(--bg-card); padding: 38px 30px; border-radius: 14px; border: 1px solid var(--border-color); transition: transform 0.3s, border-color 0.3s; text-align: left; }
.card:hover { transform: translateY(-8px); background: var(--bg-card-hover); border-color: var(--primary); }
.card-icon { width: 44px; height: 44px; margin-bottom: 20px; color: var(--primary); display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-color); border-radius: 10px; background: rgba(62,207,196,0.06); }
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 21px; margin-bottom: 12px; }
.card p { color: var(--text-muted); font-size: 15px; }

/* Quick answers */
.quick-answers { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.qa-item { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; padding: 20px 24px; display: flex; gap: 16px; align-items: flex-start; }
.qa-item .qa-q { color: var(--gold); font-weight: 700; font-size: 15px; min-width: 190px; flex-shrink: 0; }
.qa-item .qa-a { color: var(--text-muted); font-size: 15px; }

/* Pricing */
.pricing-caption { text-align: center; color: var(--text-muted); font-size: 14px; margin: -30px auto 40px; max-width: 700px; padding: 10px 18px; border: 1px dashed var(--border-color); border-radius: 8px; background: rgba(201,166,104,0.05); }
.pricing-card { display: flex; flex-direction: column; text-align: center; position: relative; }
.pricing-card.highlight { border-color: var(--gold); box-shadow: 0 0 30px rgba(201, 166, 104, 0.12); }
.highlight-tag { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--gold); color: #2a1f0d; padding: 4px 16px; border-radius: 12px; font-weight: bold; font-size: 13px; white-space: nowrap; }
.price { font-size: 40px; font-weight: bold; margin: 18px 0; color: var(--primary); }
.price span { font-size: 16px; color: var(--text-muted); font-weight: normal; }
.price del { font-size: 20px; color: var(--text-muted); font-weight: normal; margin-right: 6px; }
.pricing-features { margin: 24px 0; text-align: left; flex-grow: 1; font-size: 14px; }
.pricing-features li { margin-bottom: 12px; display: flex; align-items: flex-start; gap: 9px; color: var(--text-muted); }
.pricing-features li::before { content: '✓'; color: var(--primary); font-weight: bold; }
.pricing-card .btn { width: 100%; margin-top: 18px; }
.fineprint { color: #5c6a82; font-size: 13px; max-width: 800px; margin: 30px auto 0; line-height: 1.7; text-align: center; }

/* Data table */
.table-wrap { overflow-x: auto; margin: 24px 0; }
table.data-table { width: 100%; border-collapse: collapse; background: var(--bg-card); border-radius: 10px; overflow: hidden; min-width: 640px; }
table.data-table th, table.data-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border-color); font-size: 14.5px; }
table.data-table th { color: var(--gold); font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; background: rgba(255,255,255,0.02); }
table.data-table td { color: var(--text-muted); }
table.data-table tr:last-child td { border-bottom: none; }

/* Feature rows */
.feature-row { display: flex; align-items: center; gap: 56px; margin-bottom: 90px; }
.feature-row:last-child { margin-bottom: 0; }
.feature-row:nth-child(even) { flex-direction: row-reverse; }
.feature-text { flex: 1; }
.feature-text h2 { font-size: 28px; margin-bottom: 18px; }
.feature-text p { color: var(--text-muted); font-size: 16.5px; margin-bottom: 16px; }
.feature-visual { flex: 1; background: var(--bg-card); border-radius: 14px; border: 1px solid var(--border-color); padding: 28px; box-shadow: 0 20px 40px rgba(0,0,0,0.35); width: 100%; }
.feature-visual.map-visual { display: flex; align-items: center; justify-content: center; min-height: 280px; color: var(--primary); }
.feature-visual.map-visual svg { width: 100%; height: auto; opacity: 0.85; }

/* Checklist visual */
.checklist { display: flex; flex-direction: column; gap: 16px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-muted); font-size: 15px; }
.checklist svg { color: var(--gold); flex-shrink: 0; margin-top: 2px; width: 18px; height: 18px; }

/* Steps */
ol.step-list { padding-left: 0; list-style: none; counter-reset: step; margin: 16px 0 28px; }
ol.step-list li { position: relative; padding-left: 40px; margin-bottom: 16px; color: var(--text-muted); font-size: 15.5px; counter-increment: step; }
ol.step-list li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 26px; height: 26px; border-radius: 6px; background: var(--gold); color: #2a1f0d; font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
details { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 8px; transition: all 0.3s; }
details[open] { border-color: var(--primary); }
summary { padding: 20px; font-size: 17px; font-weight: 600; cursor: pointer; outline: none; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font-size: 22px; color: var(--primary); transition: transform 0.3s; line-height: 1; flex-shrink: 0; }
details[open] summary::after { transform: rotate(45deg); }
details p, details .faq-a { padding: 0 20px 20px; color: var(--text-muted); margin: 0; line-height: 1.7; font-size: 15px; }

/* Bottom CTA */
.bottom-cta { text-align: center; padding: 110px 5%; background: radial-gradient(circle at bottom, #101a2c 0%, var(--bg-dark) 100%); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.bottom-cta h2 { font-size: 42px; margin-bottom: 20px; }
.bottom-cta p { color: var(--text-muted); margin-bottom: 36px; font-size: 18px; max-width: 620px; margin-inline: auto; }
.bottom-cta .btn { font-size: 18px; padding: 15px 44px; border-radius: 30px; }

/* Related links / entry grid */
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.link-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; padding: 24px; transition: border-color 0.3s, transform 0.3s; }
.link-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.link-card h3 { font-size: 17px; margin-bottom: 8px; color: var(--text-main); }
.link-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 12px; }
.link-card a.read-more { color: var(--primary); font-weight: 600; font-size: 14px; }

/* Footer */
footer { border-top: 1px solid var(--border-color); padding: 56px 5% 36px; background: var(--bg-card); text-align: center; }
.footer-logo { font-size: 22px; font-weight: bold; color: var(--text-main); margin-bottom: 24px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.footer-logo .icon-mark { color: var(--primary); }
.footer-links { display: flex; justify-content: center; gap: 36px; margin-bottom: 30px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); transition: color 0.3s; font-size: 15px; }
.footer-links a:hover { color: var(--primary); }
.footer-friends { margin-bottom: 22px; font-size: 14px; color: var(--text-muted); line-height: 2.2; }
.footer-friends span.label { opacity: 0.7; }
.footer-friends a { color: var(--text-muted); transition: color 0.3s; margin: 0 10px; }
.footer-friends a:hover { color: var(--gold); }
.footer-disclosure { max-width: 820px; margin: 0 auto 20px; font-size: 12.5px; color: #5c6a82; line-height: 1.7; }
.footer-copy { color: #5c6a82; font-size: 13px; }

/* Breadcrumb */
.breadcrumb { max-width: 900px; margin: 0 auto; padding: 130px 5% 0; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }

/* Subpage */
.subpage-header { padding: 150px 5% 56px; text-align: center; background: radial-gradient(circle at top, #101a2c 0%, var(--bg-dark) 100%); border-bottom: 1px solid var(--border-color); }
.subpage-header h1 { font-size: 36px; margin-bottom: 14px; }
.subpage-header p { color: var(--text-muted); font-size: 16px; max-width: 640px; margin: 0 auto; }
.subpage-content { padding: 70px 5%; max-width: 820px; margin: 0 auto; color: var(--text-muted); font-size: 16px; }
.subpage-content h2 { color: var(--text-main); margin: 42px 0 18px; font-size: 24px; }
.subpage-content h2:first-child { margin-top: 0; }
.subpage-content h3 { color: #cbd5e0; margin: 26px 0 14px; font-size: 19px; }
.subpage-content p { margin-bottom: 18px; line-height: 1.8; }
.subpage-content ul, .subpage-content ol { padding-left: 22px; margin-bottom: 20px; }
.subpage-content ul { list-style: disc; }
.subpage-content ol { list-style: decimal; }
.subpage-content li { margin-bottom: 10px; }
.subpage-content a { color: var(--primary); text-decoration: underline; }
.subpage-content strong { color: var(--text-main); }
.note-box { background: rgba(201,166,104,0.06); border: 1px solid rgba(201,166,104,0.3); border-radius: 10px; padding: 18px 22px; margin: 22px 0; font-size: 15px; }
.note-box strong { color: var(--gold); }
.warn-box { background: rgba(239,110,110,0.06); border: 1px solid rgba(239,110,110,0.3); border-radius: 10px; padding: 18px 22px; margin: 22px 0; font-size: 15px; }
.warn-box strong { color: #ef8b8b; }

/* Spec grid */
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 24px 0; }
.spec-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; padding: 16px 20px; }
.spec-card .spec-label { font-size: 12.5px; color: var(--gold); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.spec-card .spec-value { font-size: 14.5px; color: var(--text-muted); }
.spec-note { font-size: 13px; color: #5c6a82; margin-top: 4px; }

/* Two column pro/con */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 22px 0; }
.pro-list, .caution-list { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; padding: 22px 24px; }
.pro-list h4, .caution-list h4 { color: var(--text-main); margin-bottom: 14px; font-size: 16px; }
.pro-list ul, .caution-list ul { padding-left: 18px; }
.pro-list li, .caution-list li { color: var(--text-muted); font-size: 14.5px; margin-bottom: 10px; }

/* Sitemap page list */
.sitemap-list { columns: 2; gap: 40px; }
.sitemap-list li { break-inside: avoid; margin-bottom: 10px; }

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-menu-wrapper { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%; background: var(--bg-dark); padding: 28px 20px; border-bottom: 1px solid var(--border-color); gap: 18px; }
    .nav-menu-wrapper.active { display: flex; }
    .menu-toggle { display: block; }
    .nav-links { flex-direction: column; gap: 18px; text-align: center; width: 100%; }
    .nav-actions { flex-direction: column; width: 100%; gap: 14px; }
    .nav-actions .btn { width: 100%; }

    .hero { padding-top: 130px; min-height: auto; padding-bottom: 60px; }
    .hero h1 { font-size: 32px; }
    .hero p.lead { font-size: 15.5px; padding: 0 6px; }
    .hero-btns { flex-direction: column; width: 100%; max-width: 300px; }
    .hero-btns .btn { width: 100%; }
    .hero-stats { gap: 12px; flex-direction: column; align-items: center; }
    .hero .compass-bg { width: 320px; height: 320px; }

    .grid-3, .grid-2, .link-grid, .two-col, .spec-grid { grid-template-columns: 1fr; gap: 18px; }
    .pricing-card.highlight { order: -1; }

    .feature-row, .feature-row:nth-child(even) { flex-direction: column; gap: 32px; }
    .feature-text { text-align: center; }

    .qa-item { flex-direction: column; gap: 8px; }
    .qa-item .qa-q { min-width: 0; }

    .bottom-cta h2 { font-size: 30px; }
    .bottom-cta p { font-size: 15.5px; }

    .footer-links { gap: 18px; flex-direction: column; }
    section { padding: 56px 5%; }
    .breadcrumb { padding: 100px 5% 0; }
    .subpage-header { padding: 130px 5% 44px; }
    .subpage-header h1 { font-size: 28px; }

    table.data-table { min-width: 560px; }
    .sitemap-list { columns: 1; }
}