/* C++ — Editorial Dark (Stripe Press / longform journal)
   Tokens from variant-c-plus-plus.jsx */

:root {
  --bg: #0d0c0a;
  --bgElev: #14130f;
  --bgInset: #1a1814;
  --paper: #f6f1e7;
  --fg: #eae4d6;
  --fgMuted: #9a9384;
  --fgSubtle: #6a6454;
  --fgDim: #3e3a33;
  --border: #24221c;
  --borderBright: #3a362d;
  --accent: #e88a3a;
  --accentSoft: rgba(232,138,58,0.14);
  --brand: #6b82ff;
  --serif: "Fraunces", "Iowan Old Style", "Apple Garamond", Baskerville, "Times New Roman", serif;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", sans-serif;
  --mono: "Geist Mono", ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--fg); overflow-x: hidden; }
body { font-family: var(--serif); font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased; font-feature-settings: "ss01" 1, "ss02" 1, "onum" 1; }
.sans { font-family: var(--sans); font-feature-settings: normal; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; font-feature-settings: normal; }

/* Shared header (matches B++ pattern across all pages) */
.top { position: sticky; top: 0; z-index: 40; background: var(--bg); border-bottom: 1px solid var(--border); }
.topInner { padding: 11px 28px; display: flex; align-items: center; justify-content: space-between; font-size: 11.5px; font-family: var(--sans); }
.lockup { display: flex; align-items: center; gap: 10px; }
.lockup-text { display: flex; align-items: baseline; gap: 6px; font-family: var(--sans); font-weight: 600; letter-spacing: -0.01em; font-size: 14px; color: #f4f5f7; }
.lockup-text .duppla { color: rgba(244,245,247,0.55); font-weight: 500; }
.nav { display: flex; gap: 20px; font-family: var(--sans); font-size: 13px; margin-left: 24px; }
.nav a { color: var(--fgMuted); text-decoration: none; }
.nav a:hover { color: var(--fg); }
.nav a.active { color: var(--fg); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; margin-right: 7px; box-shadow: 0 0 0 3px var(--accentSoft); }
.top-right { display: flex; gap: 18px; align-items: center; color: var(--fgMuted); font-family: var(--sans); }
.top-right .sub { color: var(--fgSubtle); }
.issue { font-family: var(--sans); font-size: 11px; color: var(--fgSubtle); letter-spacing: 0.16em; text-transform: uppercase; padding: 10px 56px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.issueL { display: flex; gap: 18px; }

/* Hero */
.hero { padding: 88px 56px 72px; display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 72px; align-items: start; border-bottom: 1px solid var(--border); position: relative; }
.eyebrow { font-family: var(--sans); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 28px; display: flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--accent); }
.h1 { font-size: 84px; line-height: 0.96; font-weight: 400; letter-spacing: -0.025em; margin: 0 0 32px; font-family: var(--serif); max-width: 920px; }
.h1 em { font-style: italic; color: var(--fgMuted); font-weight: 400; }
.dek { font-size: 21px; line-height: 1.5; color: var(--fgMuted); max-width: 640px; margin: 0 0 36px; font-family: var(--serif); font-style: italic; }
.ctaRow { display: flex; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 999px; font-size: 14px; font-family: var(--sans); font-weight: 500; cursor: pointer; border: 1px solid transparent; text-decoration: none; transition: all .15s; }
.btnPrimary { background: var(--fg); color: var(--bg); }
.btnPrimary:hover { background: #fff; }
.btnGhost { background: transparent; color: var(--fg); border-color: var(--borderBright); }
.btnGhost:hover { background: var(--bgElev); border-color: var(--fgMuted); }

/* Marginalia */
.margin { font-family: var(--sans); font-size: 12.5px; color: var(--fgMuted); line-height: 1.6; border-left: 1px solid var(--accent); padding: 6px 0 6px 18px; margin-bottom: 24px; }
.margin strong { color: var(--accent); font-weight: 500; display: block; margin-bottom: 6px; letter-spacing: 0.12em; font-size: 10.5px; text-transform: uppercase; }
.marginStats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 18px 0; margin-top: 20px; font-family: var(--sans); }
.marginRow { display: flex; justify-content: space-between; padding: 6px 0; font-size: 13px; color: var(--fgMuted); }
.marginRow b { color: var(--fg); font-weight: 500; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 12.5px; }

/* Article */
.article { padding: 80px 56px; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: minmax(0, 720px) 280px; gap: 72px; justify-content: center; align-items: start; }
.articleHead { grid-column: 1; font-family: var(--sans); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.h2 { font-size: 42px; line-height: 1.08; font-weight: 400; letter-spacing: -0.018em; margin: 0 0 28px; font-family: var(--serif); max-width: 680px; }
.h2 em { font-style: italic; color: var(--fgMuted); }
.p { font-size: 18px; line-height: 1.7; color: var(--fg); margin: 0 0 22px; }
.p strong { font-weight: 500; }
.p em { font-style: italic; color: var(--fgMuted); }

/* Drop cap */
.drop::first-letter { font-family: var(--serif); font-weight: 500; font-size: 78px; line-height: 0.85; float: left; padding: 8px 14px 0 0; color: var(--accent); }

/* Pull quote */
.pullquote { font-family: var(--serif); font-size: 30px; line-height: 1.22; font-style: italic; color: var(--fg); margin: 44px 0; padding: 0 0 0 28px; border-left: 2px solid var(--accent); font-weight: 300; max-width: 660px; }

/* Footnote */
.footnote { font-family: var(--sans); font-size: 13px; color: var(--fgMuted); padding: 14px 0; border-top: 1px solid var(--border); margin-top: 20px; line-height: 1.55; }
.footnote sup { color: var(--accent); font-weight: 600; margin-right: 4px; }
.elink { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--fgDim); }
.elink:hover { border-bottom-color: var(--accent); }

/* Figure (bars chart) */
.figure { grid-column: 1 / -1; margin: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 28px 0; }
.figCap { font-family: var(--sans); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fgSubtle); margin-bottom: 18px; }
.figCap strong { color: var(--accent); margin-right: 10px; letter-spacing: 0.14em; }
.bars { display: grid; grid-template-columns: repeat(13, 1fr); gap: 6px; align-items: end; height: 140px; margin: 12px 0 8px; }
.bar { background: var(--bgElev); border-top: 2px solid var(--accent); transition: background .12s; }
.bar:hover { background: var(--accentSoft); }
.barLabels { display: grid; grid-template-columns: repeat(13, 1fr); gap: 6px; font-family: var(--mono); font-size: 9.5px; color: var(--fgSubtle); text-align: center; letter-spacing: 0.04em; }

/* Appendix table */
.appendix { padding: 72px 56px; border-bottom: 1px solid var(--border); }
.appHead { margin-bottom: 28px; display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.appTitle { font-family: var(--serif); font-size: 32px; font-weight: 400; margin: 0; letter-spacing: -0.015em; }
.appMeta { font-family: var(--sans); font-size: 11.5px; color: var(--fgSubtle); letter-spacing: 0.14em; text-transform: uppercase; }
.tbl { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.tbl th { text-align: left; padding: 12px 14px; font-family: var(--sans); font-size: 10.5px; font-weight: 500; color: var(--fgSubtle); letter-spacing: 0.12em; text-transform: uppercase; border-bottom: 1px solid var(--borderBright); }
.tbl th.num { text-align: right; }
.tbl td { padding: 14px; border-bottom: 1px solid var(--border); color: var(--fg); }
.tbl td.num { text-align: right; }
.tbl tr:hover td { background: var(--bgElev); }
.hash { color: var(--fgMuted); }
.tbadge { display: inline-flex; align-items: center; gap: 6px; font-family: var(--sans); font-size: 10.5px; padding: 2px 8px; border-radius: 999px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); background: var(--accentSoft); }

/* Opportunities */
.opportunities { padding: 96px 56px; border-bottom: 1px solid var(--border); position: relative; overflow: hidden; }
.opportunities::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 900px; height: 900px; background: radial-gradient(circle, rgba(232,138,58,0.06) 0%, transparent 70%); pointer-events: none; }
.oppIntro { max-width: 780px; margin: 0 auto 64px; text-align: center; position: relative; }
.oppEyebrow { font-family: var(--sans); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 20px; display: flex; align-items: center; justify-content: center; gap: 14px; }
.oppEyebrow::before, .oppEyebrow::after { content: ''; width: 28px; height: 1px; background: var(--accent); }
.oppH { font-family: var(--serif); font-size: 54px; line-height: 1.02; font-weight: 400; letter-spacing: -0.02em; margin: 0 0 22px; }
.oppH em { font-style: italic; color: var(--fgMuted); }
.oppDek { font-size: 19px; line-height: 1.55; color: var(--fgMuted); font-style: italic; font-family: var(--serif); max-width: 640px; margin: 0 auto; }
.oppGrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1100px; margin: 0 auto 56px; position: relative; }
.oppCard { background: var(--bgElev); border: 1px solid var(--border); border-radius: 12px; padding: 32px 28px 28px; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.oppCard:hover { border-color: var(--borderBright); transform: translateY(-2px); }
.oppCardNum { font-family: var(--mono); font-size: 11px; color: var(--fgSubtle); letter-spacing: 0.1em; margin-bottom: 16px; }
.oppCardTitle { font-family: var(--serif); font-size: 24px; font-weight: 400; letter-spacing: -0.01em; margin: 0 0 12px; line-height: 1.15; }
.oppCardTitle em { font-style: italic; color: var(--accent); }
.oppCardBody { font-family: var(--serif); font-size: 15px; color: var(--fgMuted); line-height: 1.55; flex: 1; margin-bottom: 20px; }
.oppProof { display: inline-flex; align-items: center; gap: 6px; font-family: var(--sans); font-size: 11px; color: var(--accent); background: var(--accentSoft); padding: 4px 10px; border-radius: 999px; letter-spacing: 0.04em; font-weight: 500; }
.oppProof::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.oppClosing { max-width: 720px; margin: 0 auto; text-align: center; }
.oppClosingQuote { font-family: var(--serif); font-size: 26px; line-height: 1.3; font-style: italic; color: var(--fg); font-weight: 300; margin: 0 0 16px; }
.oppClosingQuote strong { font-weight: 500; color: var(--accent); font-style: normal; }
.oppClosingSub { font-family: var(--sans); font-size: 13px; color: var(--fgSubtle); letter-spacing: 0.08em; }

/* Roadmap */
.roadmap { padding: 96px 56px; border-bottom: 1px solid var(--border); background: var(--bgElev); }
.roadmapIntro { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.roadmapEyebrow { font-family: var(--sans); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 20px; }
.roadmapH { font-family: var(--serif); font-size: 54px; line-height: 1.02; font-weight: 400; letter-spacing: -0.02em; margin: 0 0 22px; }
.roadmapH em { font-style: italic; color: var(--fgMuted); }
.roadmapDek { font-size: 19px; line-height: 1.55; color: var(--fgMuted); font-style: italic; font-family: var(--serif); }
.rItems { max-width: 820px; margin: 0 auto; }
.rItem { display: grid; grid-template-columns: 50px minmax(0, 1fr) 140px; gap: 28px; align-items: baseline; padding: 28px 0; border-bottom: 1px solid var(--border); }
.rItem:last-child { border-bottom: none; }
.rN { font-family: var(--mono); font-size: 12px; color: var(--fgSubtle); letter-spacing: 0.08em; }
.rT { font-family: var(--serif); font-size: 26px; font-weight: 400; letter-spacing: -0.01em; margin: 0 0 6px; }
.rT em { font-style: italic; color: var(--accent); }
.rB { font-family: var(--serif); font-size: 16px; color: var(--fgMuted); line-height: 1.55; max-width: 560px; }
.rStatus { font-family: var(--sans); font-size: 11px; color: var(--fgSubtle); letter-spacing: 0.14em; text-transform: uppercase; text-align: right; }
.rStatus.exploring { color: var(--accent); }

/* Colophon */
.colophon { padding: 56px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; border-bottom: 1px solid var(--border); }
.colTitle { font-family: var(--sans); font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fgSubtle); margin-bottom: 14px; }
.colBody { font-family: var(--serif); font-size: 15px; color: var(--fgMuted); line-height: 1.55; }
.colBody a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--fgDim); }
.footer { padding: 18px 56px; font-family: var(--sans); font-size: 11px; color: var(--fgSubtle); display: flex; justify-content: space-between; letter-spacing: 0.06em; }

/* ─── Mobile ─── */
@media (max-width: 768px) {
  .topInner { padding: 10px 16px; flex-wrap: wrap; gap: 8px; }
  .top-right { display: none; }
  .nav { margin-left: 16px; gap: 14px; font-size: 12px; }
  .issue { padding: 8px 18px; font-size: 10px; }
  .hero { padding: 48px 18px 40px; grid-template-columns: 1fr; gap: 32px; }
  .h1 { font-size: 40px; }
  .dek { font-size: 17px; }
  .article { padding: 48px 18px; grid-template-columns: 1fr; gap: 32px; }
  .h2 { font-size: 30px; }
  .p { font-size: 16px; }
  .pullquote { font-size: 22px; margin: 28px 0; padding-left: 18px; }
  .drop::first-letter { font-size: 56px; }
  .figure { margin: 28px -18px; padding: 20px 18px; }
  .bars { height: 100px; gap: 3px; }
  .barLabels { font-size: 8px; gap: 3px; }
  .appendix { padding: 40px 18px; }
  .tbl { font-size: 11px; }
  .tbl th, .tbl td { padding: 10px 8px; white-space: nowrap; }
  .tbl .col-num, .tbl .col-hash { display: none; }
  .opportunities { padding: 56px 18px; }
  .oppH { font-size: 32px; }
  .oppDek { font-size: 16px; }
  .oppGrid { grid-template-columns: 1fr; gap: 14px; }
  .oppCard { padding: 22px 20px 20px; }
  .oppCardTitle { font-size: 20px; }
  .roadmap { padding: 56px 18px; }
  .roadmapH { font-size: 32px; }
  .rItem { grid-template-columns: 36px minmax(0, 1fr); gap: 14px; }
  .rItem > :last-child { grid-column: 2; }
  .rT { font-size: 20px; }
  .colophon { padding: 32px 18px; grid-template-columns: 1fr; gap: 24px; }
  .footer { padding: 14px 18px; flex-direction: column; gap: 6px; text-align: center; }
  .margin { margin-left: 0; }
}