:root{
  --bg:#071a12;
  --bg-deep:#031109;
  --surface:#0e2a1d;
  --surface-raised:#143626;
  --surface-soft:#183e2c;
  --text:#f7f2e8;
  --muted:#bac8c0;
  --primary:#78d8aa;
  --primary-strong:#49be87;
  --accent:#e4c078;
  --line:rgba(247,242,232,.16);
  --line-strong:rgba(120,216,170,.42);
  --shadow:0 18px 50px rgba(0,0,0,.24);
  --font-heading:Georgia,"Times New Roman",serif;
  --font-body:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg-deep)}
body{margin:0;background:radial-gradient(circle at 85% 4%,rgba(73,190,135,.14),transparent 28%),linear-gradient(180deg,var(--bg),var(--bg-deep));color:var(--text);font:16px/1.65 var(--font-body);min-height:100vh}
img{display:block;max-width:100%}
a{color:inherit}
button,summary{font:inherit}
.skip-link{position:fixed;left:12px;top:8px;z-index:100;padding:10px 14px;border-radius:10px;background:var(--accent);color:#142018;font-weight:800;transform:translateY(-150%)}
.skip-link:focus{transform:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

.site-header{position:relative;z-index:10;border-bottom:1px solid var(--line);background:rgba(3,17,9,.95)}
.header-inner{width:min(1220px,calc(100% - 32px));min-height:74px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{min-height:44px;text-decoration:none;display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-size:22px;font-weight:700;color:var(--accent)}
.brand-mark{display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--line-strong);border-radius:50%;background:var(--surface)}
.brand-mark::before{content:"R";font-size:18px}
.desktop-nav{display:flex;align-items:center;gap:5px}
.desktop-nav a{min-height:44px;display:flex;align-items:center;padding:8px 12px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:700;text-decoration:none}
.desktop-nav a:hover,.desktop-nav a[aria-current="page"]{background:var(--surface);color:var(--text)}
.mobile-nav{display:none;position:relative}
.mobile-nav summary{min-width:48px;min-height:48px;display:grid;place-items:center;cursor:pointer;border:1px solid var(--line);border-radius:14px;background:var(--surface);font-weight:900;list-style:none}
.mobile-nav summary::-webkit-details-marker{display:none}
.mobile-nav nav{position:absolute;right:0;top:56px;width:min(280px,calc(100vw - 32px));padding:10px;border:1px solid var(--line);border-radius:18px;background:#0a2117;box-shadow:var(--shadow)}
.mobile-nav nav a{min-height:46px;display:flex;align-items:center;padding:9px 12px;border-radius:10px;text-decoration:none;color:var(--muted);font-weight:750}
.mobile-nav nav a:hover{background:var(--surface-raised);color:var(--text)}

.page{width:min(1220px,calc(100% - 32px));margin:auto;padding:20px 0 72px}
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:0 0 18px;color:var(--muted);font-size:13px}
.breadcrumbs a{text-underline-offset:4px}
.breadcrumbs [aria-current="page"]{color:var(--text)}
.preview-note{margin:0 0 18px;padding:11px 14px;border:1px solid rgba(228,192,120,.42);border-radius:14px;background:rgba(228,192,120,.09);color:#f2dcad;font-size:13px}

.hero{overflow:hidden;display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);min-height:460px;border:1px solid var(--line);border-radius:30px;background:var(--surface);box-shadow:var(--shadow)}
.hero-media{position:relative;align-self:center;height:420px;margin:24px;overflow:hidden;border-radius:22px;background:#04120b}
.hero-media img{width:100%;height:100%;object-fit:contain}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 65%,rgba(3,17,9,.7))}
.photo-caption{position:absolute;z-index:1;left:18px;right:18px;bottom:14px;margin:0;color:rgba(255,255,255,.84);font-size:12px}
.hero-copy{display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,4vw,52px)}
.eyebrow{margin:0 0 14px;color:var(--primary);font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3{font-family:var(--font-heading);line-height:1.08;text-wrap:balance}
h1{margin:0;font-size:clamp(46px,7vw,78px);letter-spacing:-.04em}
.uk-name{margin:6px 0 20px;color:var(--accent);font-family:var(--font-heading);font-size:clamp(24px,3vw,36px)}
.hero-lead{max-width:670px;margin:0 0 24px;color:#d7e1db;font-size:clamp(17px,1.7vw,21px);line-height:1.55}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px;padding:0;list-style:none}
.hero-tags li{padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.035);color:var(--muted);font-size:12px;font-weight:750}
.hero-context{margin:-12px 0 22px;color:var(--muted);font-size:13px;line-height:1.55}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:1px solid var(--primary);border-radius:14px;background:var(--primary);color:#082117;font-weight:850;text-decoration:none}
.button:hover{background:#91e5ba;transform:translateY(-2px)}
.button.secondary{border-color:var(--line);background:transparent;color:var(--text)}
.button.secondary:hover{border-color:var(--line-strong);background:rgba(120,216,170,.08)}

.section{padding-top:clamp(42px,7vw,76px);scroll-margin-top:20px}
.section-heading{max-width:760px;margin-bottom:24px}
.section-kicker{margin:0 0 7px;color:var(--primary);font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}
h2{margin:0 0 10px;font-size:clamp(30px,4vw,42px);letter-spacing:-.025em}
.section-heading>p{margin:0;color:var(--muted);font-size:17px}

.contents{position:sticky;top:10px;z-index:5;display:flex;gap:6px;margin:20px 0 0;padding:8px;overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#092218;scrollbar-width:thin}
.contents a{min-height:40px;display:flex;flex:none;align-items:center;padding:7px 11px;border-radius:10px;color:var(--muted);font-size:13px;font-weight:750;text-decoration:none;white-space:nowrap}
.contents a:hover{background:var(--surface-raised);color:var(--text)}

.fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.fact{min-height:152px;padding:20px;border:1px solid var(--line);border-radius:20px;background:var(--surface)}
.fact-label{display:block;margin-bottom:12px;color:var(--muted);font-size:11px;font-weight:850;letter-spacing:.08em;text-transform:uppercase}
.fact strong{display:block;margin-bottom:8px;color:var(--text);font-family:var(--font-heading);font-size:26px;line-height:1.05}
.fact small{color:var(--muted);font-size:13px;line-height:1.45}

.content-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:18px;align-items:start}
.panel{padding:clamp(20px,3vw,30px);border:1px solid var(--line);border-radius:24px;background:var(--surface)}
.panel+.panel{margin-top:14px}
.panel h3{margin:0 0 18px;font-size:28px}
.prose p{margin:0 0 16px;color:#d9e1dc}
.prose p:last-child{margin-bottom:0}
.data-list{margin:0;display:grid;grid-template-columns:minmax(130px,.38fr) 1fr;gap:0}
.data-list dt,.data-list dd{margin:0;padding:13px 0;border-bottom:1px solid var(--line)}
.data-list dt{padding-right:20px;color:var(--muted);font-size:13px;font-weight:800}
.data-list dd{color:#e8eee9}
.data-list dt:last-of-type,.data-list dd:last-of-type{border-bottom:0}
.aside-card{position:sticky;top:72px;padding:24px;border:1px solid var(--line-strong);border-radius:24px;background:var(--surface-raised)}
.aside-card h3{margin:0 0 12px;font-size:25px}
.aside-card p{margin:0 0 17px;color:#d8e2dc;font-size:14px}
.check-list{margin:0;padding:0;list-style:none}
.check-list li{position:relative;padding:9px 0 9px 26px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:900}

.details-stack{display:grid;gap:10px}
.details-card{border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden}
.details-card summary{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 18px;cursor:pointer;color:var(--text);font-weight:850;list-style:none}
.details-card summary::-webkit-details-marker{display:none}
.details-card summary::after{content:"+";display:grid;width:30px;height:30px;flex:0 0 30px;place-items:center;border:1px solid var(--line-strong);border-radius:50%;color:var(--primary);font-size:20px}
.details-card[open] summary::after{content:"−"}
.details-body{padding:0 18px 18px;color:#d8e2dc}
.details-body p{margin:0 0 12px}

.pairing-grid{display:grid;grid-template-columns:repeat(4,minmax(0,180px));justify-content:center;gap:12px}
.pairing-card{overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--surface);text-decoration:none;transition:transform 160ms ease,border-color 160ms ease}
.pairing-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.pairing-card img{width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;background:#06160e}
.pairing-copy{padding:12px}
.pairing-type{display:block;margin-bottom:5px;color:var(--primary);font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.pairing-card strong{display:block;font-family:var(--font-heading);font-size:18px;line-height:1.15}
.pairing-card small{display:block;color:var(--muted);line-height:1.45}
.pairing-summary{margin-top:14px}
.pairing-summary>p{margin:0 0 14px;color:#d8e2dc}
.pairing-summary ul{margin:0;padding:0;list-style:none}
.pairing-summary li{padding:11px 0;border-top:1px solid var(--line);color:var(--muted);line-height:1.55}
.pairing-summary li strong{color:var(--text)}
.pairing-summary .pairing-hint{margin:14px 0 0;color:var(--primary);font-size:13px;font-weight:750}
.pairing-subheading{margin-top:clamp(34px,5vw,58px)}

.source-list{margin:0;padding-left:20px;color:var(--muted)}
.source-list li{margin:8px 0}
.source-list a{text-decoration-color:rgba(120,216,170,.55);text-underline-offset:4px}
.route-panel,.rcs-route-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px}
.route-link{min-height:86px;display:flex;flex-direction:column;justify-content:center;padding:16px;border:1px solid var(--line);border-radius:18px;background:var(--surface);text-decoration:none}
.route-link small{color:var(--muted);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.route-link strong{margin-top:3px;color:var(--text)}
.route-link:hover{border-color:var(--line-strong);background:var(--surface-raised)}

.site-footer{margin-top:70px;padding:32px 0;border-top:1px solid var(--line);color:var(--muted);text-align:center;font-size:13px}

@media(max-width:980px){
  .desktop-nav{display:none}.mobile-nav{display:block}
  .hero{grid-template-columns:1fr;min-height:0}.hero-media{width:min(calc(100% - 48px),420px);height:auto;margin:24px auto 0;border-radius:22px;aspect-ratio:1/1;max-height:none}.hero-copy{padding:32px}
  .fact-grid{grid-template-columns:repeat(2,1fr)}
  .content-grid{grid-template-columns:1fr}.aside-card{position:static}
  .pairing-grid{grid-template-columns:repeat(2,minmax(0,180px))}
}

@media(max-width:620px){
  body{font-size:15.5px}.header-inner,.page{width:min(100% - 24px,1220px)}
  .header-inner{min-height:64px}.brand{font-size:19px}.brand-mark{width:31px;height:31px}
  .page{padding-top:12px}.breadcrumbs{font-size:12px}
  .hero{border-radius:22px}.hero-media{width:min(calc(100% - 32px),320px);margin-top:16px;aspect-ratio:1/1;max-height:none}.hero-copy{padding:24px 18px 26px}
  h1{font-size:clamp(44px,16vw,66px)}.hero-lead{font-size:17px}
  .hero-actions{display:grid;grid-template-columns:1fr}.button{width:100%}
  .contents{margin-inline:-2px;top:4px}
  .fact-grid{gap:8px}.fact{min-height:142px;padding:16px}.fact strong{font-size:21px}
  .section{padding-top:46px}.section-heading>p{font-size:16px}
  .panel{border-radius:20px;padding:19px 16px}.panel h3{font-size:25px}
  .data-list{grid-template-columns:1fr}.data-list dt{padding:13px 0 3px;border-bottom:0}.data-list dd{padding:0 0 13px}
  .pairing-grid{grid-template-columns:repeat(2,minmax(0,140px));gap:8px}.pairing-copy{padding:10px}.pairing-card strong{font-size:16px}
  .route-panel,.rcs-route-panel{grid-template-columns:1fr}.route-link{min-height:70px}
}

@media(max-width:380px){
  .page,.header-inner{width:calc(100% - 18px)}
  .hero-copy{padding-inline:15px}.hero{border-radius:18px}
  .fact-grid{grid-template-columns:1fr}.fact{min-height:0}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.button,.pairing-card{transition:none}.button:hover,.pairing-card:hover{transform:none}
}