:root {
  --tarmac: #16181b; --tarmac-2: #1e2126; --chalk: #eff1ec; --card: #fbfcf9;
  --ink: #16181b; --muted: #5b6169; --muted-dk: #9aa1a8; --line: #d6dad2;
  --volt: #c4f82a; --volt-ink: #2c3a05; --pine: #0e7a57;
  --sans: system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --display: 'Archivo', system-ui, 'Helvetica Neue', Arial, sans-serif;
  --cond: 'Arial Narrow', 'Roboto Condensed', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--chalk); line-height: 1.7; }
a { color: inherit; }
h1, h2, h3, .brand { font-family: var(--display); }

/* header */
.ahead { position: sticky; top: 0; z-index: 50; background: rgba(22,24,27,0.85); -webkit-backdrop-filter: saturate(140%) blur(10px); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid rgba(255,255,255,0.07); }
.ahead nav { max-width: 1000px; margin: 0 auto; padding: 15px clamp(18px, 5vw, 40px); display: flex; align-items: center; gap: 18px; }
.ahead .brand { color: var(--chalk); font-weight: 800; text-transform: uppercase; letter-spacing: -0.01em; font-size: 20px; text-decoration: none; }
.ahead .brand b { color: var(--volt); }
.ahead .sp { flex: 1; }
.ahead a.nl { color: var(--muted-dk); text-decoration: none; font-size: 14px; }
.ahead a.nl:hover { color: var(--chalk); }
.ahead a.cta { background: var(--volt); color: var(--volt-ink); font-weight: 700; font-size: 14px; padding: 9px 15px; border-radius: 10px; text-decoration: none; }

/* hub */
.hub-hero { background: var(--tarmac); color: var(--chalk); }
.hub-hero .in { max-width: 1000px; margin: 0 auto; padding: clamp(44px, 7vw, 84px) clamp(18px, 5vw, 40px); }
.eyebrow { font-family: var(--cond); text-transform: uppercase; letter-spacing: 0.2em; font-size: 13px; color: var(--volt); margin: 0 0 16px; }
.hub-hero h1 { font-size: clamp(34px, 6vw, 64px); line-height: 1; font-weight: 800; letter-spacing: -0.03em; margin: 0; text-transform: uppercase; }
.hub-hero p { color: var(--muted-dk); font-size: clamp(16px, 1.8vw, 19px); max-width: 56ch; margin: 20px 0 0; }

.grid { max-width: 1000px; margin: 0 auto; padding: clamp(40px, 6vw, 64px) clamp(18px, 5vw, 40px); display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.acard { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; text-decoration: none; color: inherit; transition: transform 0.12s, border-color 0.12s; }
.acard:hover { transform: translateY(-3px); border-color: #bcc2b7; }
.acard .cat { font-family: var(--cond); text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px; color: var(--pine); margin: 0 0 10px; }
.acard h2 { font-size: 22px; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 10px; }
.acard p { color: var(--muted); font-size: 15px; margin: 0 0 16px; flex: 1; }
.acard .more { font-weight: 700; font-size: 14px; color: var(--volt-ink); }

/* article */
.art { max-width: 720px; margin: 0 auto; padding: clamp(32px, 5vw, 56px) clamp(18px, 5vw, 32px) 40px; }
.art .cat { font-family: var(--cond); text-transform: uppercase; letter-spacing: 0.16em; font-size: 12px; color: var(--pine); margin: 0 0 14px; }
.art h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.03; font-weight: 800; letter-spacing: -0.025em; margin: 0 0 16px; text-wrap: balance; }
.art .meta { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.art .dek { font-size: clamp(18px, 2vw, 21px); color: #3a3e42; line-height: 1.5; margin: 0 0 6px; }
.art hr { border: none; border-top: 1px solid var(--line); margin: 28px 0; }
.art h2 { font-size: clamp(22px, 3vw, 28px); letter-spacing: -0.02em; margin: 38px 0 12px; }
.art h3 { font-size: 20px; margin: 26px 0 8px; }
.art p, .art li { color: #2b2e31; font-size: 17px; }
.art p { margin: 0 0 18px; }
.art ul, .art ol { padding-left: 22px; margin: 0 0 18px; }
.art li { margin: 7px 0; }
.art a { color: var(--volt-ink); text-decoration: underline; text-underline-offset: 2px; }
.art blockquote { margin: 22px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--volt); font-size: 19px; color: var(--ink); font-weight: 500; }
.art strong { color: var(--ink); }

/* CTA block */
.cta-block { background: var(--tarmac); color: var(--chalk); border-radius: 18px; padding: clamp(26px, 4vw, 40px); margin: 44px 0 8px; text-align: center; }
.cta-block h3 { font-size: clamp(22px, 3.4vw, 32px); letter-spacing: -0.02em; margin: 0 0 10px; text-transform: uppercase; }
.cta-block h3 span { color: var(--volt); }
.cta-block p { color: var(--muted-dk); max-width: 48ch; margin: 0 auto 20px; font-size: 16px; }
.cta-block a { display: inline-block; background: var(--volt); color: var(--volt-ink); font-weight: 700; text-decoration: none; padding: 13px 26px; border-radius: 12px; }

.related { max-width: 720px; margin: 0 auto; padding: 8px clamp(18px, 5vw, 32px) 24px; }
.related .lab { font-family: var(--cond); text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px; color: var(--muted); margin: 0 0 6px; }
.related a { display: block; color: var(--ink); text-decoration: none; font-weight: 600; padding: 11px 0; border-top: 1px solid var(--line); }
.related a:hover { color: var(--volt-ink); }

footer.afoot { border-top: 1px solid var(--line); }
.afoot .row { max-width: 1000px; margin: 0 auto; padding: 24px clamp(18px, 5vw, 40px); font-size: 14px; color: var(--muted); display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.afoot .brand { font-weight: 800; text-transform: uppercase; color: var(--ink); }
.afoot .brand b { color: var(--pine); }
.afoot .sp { flex: 1; }
.afoot a { color: var(--muted); text-decoration: none; }
.afoot a:hover { color: var(--ink); }