/* Shared site styles for hundredtraces.com — extracted 2026-05-20.
   Used by index.html, water.html, privacy.html, terms.html.
   Companion: tokens.css (CSS custom properties only). */

  /* ============================================================
   * MONOLITH — black-water obsidian website
   * Palette: abyssal navy, obsidian, bone, silver edges,
   * single terracotta accent. No gradients, no glow, no neon.
   * Typography: Instrument Serif display + JetBrains Mono +
   * Inter body, small and tight.
   * ============================================================ */

/* Accessibility token tweak (2026-05-20): bump --mn-silver one step
   toward bone so small-text paragraphs against --mn-void reach
   WCAG AA 4.5:1 contrast. The previous #8E9CA8 was ~4.1:1. */
:root {
    --mn-silver: #A3AFB8;
}

  :root {
    --mn-void:        #04080C;   /* absolute black, page base */
    --mn-abyss:       #070E14;   /* deep water */
    --mn-deep:        #0B1620;   /* deep panel */
    --mn-stone:       #121E29;   /* elevated surface */
    --mn-stone-2:     #1A2834;
    --mn-edge:        #24323E;   /* hairline on dark */
    --mn-edge-2:      #334350;
    --mn-silver:      #8E9CA8;   /* secondary text / rules */
    --mn-silver-2:    #B9C4CE;
    --mn-bone:        #E8E4DC;   /* warm off-white for headlines */
    --mn-bone-2:      #F5F2EC;
    --mn-ember:       #C65A3F;   /* terracotta — sediment in the deep */
    --mn-ember-ink:   #7A3527;
    --mn-teal:        #2F5C6E;   /* muted daylight water, for one-off tags */
  }

  * { box-sizing: border-box; }
  html, body {
    margin: 0; padding: 0;
    background: var(--mn-void);
    color: var(--mn-bone);
    font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
    font-size: 15px; line-height: 1.55;
    -webkit-font-smoothing: antialiased;
  }
  img, svg { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }

  /* legacy SVG turbulence overlays — killed; they render blurry. Each section now uses a crisp photo background instead. */
  .hero-water,
  .twin-bg,
  .cta-bg { display: none !important; }

  /* ============================================================
   * PHOTO BACKGROUNDS — each section gets a distinct, crisp water scene
   * ============================================================ */
  .bg-photo {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    z-index: 0;
  }
  .bg-scrim {
    position: absolute; inset: 0;
    z-index: 1;
  }
  /* HERO · deep ocean at eye level */
  .bg-hero {
    background-image: url("https://images.unsplash.com/photo-1518837695005-2083093ee35b?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-hero-scrim {
    background:
      radial-gradient(ellipse 90% 70% at 50% 55%, rgba(2,6,10,0.1) 0%, rgba(2,6,10,0.75) 95%),
      linear-gradient(180deg, rgba(2,6,10,0.35) 0%, rgba(2,6,10,0.1) 45%, rgba(2,6,10,0.85) 100%);
  }
  /* LEDGER · horizon at dusk — the scale of the problem */
  .bg-ledger {
    background-image: url("https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-ledger-scrim {
    background:
      linear-gradient(180deg, rgba(2,6,10,0.82) 0%, rgba(2,6,10,0.75) 50%, rgba(2,6,10,0.88) 100%);
  }
  /* PLATFORM · aerial turquoise with rocks — precise edge */
  .bg-platform {
    background-image: url("https://images.unsplash.com/photo-1454789591675-556c287e39e2?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-platform-scrim {
    background:
      linear-gradient(180deg, rgba(2,6,10,0.88) 0%, rgba(2,6,10,0.78) 50%, rgba(2,6,10,0.92) 100%);
  }
  /* TWIN · dark churning water — dynamic model surface */
  .bg-twin {
    background-image: url("https://images.unsplash.com/photo-1484291470158-b8f8d608850d?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-twin-scrim {
    background:
      linear-gradient(180deg, rgba(2,6,10,0.78) 0%, rgba(2,6,10,0.6) 45%, rgba(2,6,10,0.9) 100%);
  }
  /* COMPARE · deep underwater light rays */
  .bg-compare {
    background-image: url("https://images.unsplash.com/photo-1551244072-5d12893278ab?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-compare-scrim {
    background:
      linear-gradient(180deg, rgba(2,6,10,0.85) 0%, rgba(2,6,10,0.82) 50%, rgba(2,6,10,0.9) 100%);
  }
  /* CTA · aerial river bend / estuary */
  .bg-cta {
    background-image: url("https://images.unsplash.com/photo-1476610182048-b716b8518aae?auto=format&fit=crop&w=2400&q=85");
  }
  .bg-cta-scrim {
    background:
      linear-gradient(180deg, rgba(2,6,10,0.8) 0%, rgba(2,6,10,0.7) 45%, rgba(2,6,10,0.92) 100%);
  }

  /* stack section content above bg layers */
  .section > .wrap,
  .twin > .twin-inner,
  .ledger > .wrap,
  .cta > .cta-inner,
  .hero-content,
  .hero-rail,
  .rail {
    position: relative; z-index: 3;
  }

  /* Shared primitives ------------------------------------------------ */
  .wrap { max-width: 1360px; margin: 0 auto; padding: 0 48px; }
  .rule { height: 1px; background: var(--mn-edge); }
  .rule-silver { height: 1px; background: rgba(232,228,220,0.12); }

  .mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace; font-weight: 400; }
  .serif { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; font-style: normal; }
  .serif-it { font-family: "Instrument Serif", Georgia, serif; font-style: italic; font-weight: 400; }

  .eyebrow {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--mn-silver);
    font-weight: 400;
  }
  .tick {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mn-silver);
  }

  .btn {
    display: inline-flex; align-items: center; gap: 14px;
    padding: 14px 22px;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    border: 1px solid var(--mn-edge-2);
    color: var(--mn-bone);
    transition: border-color .2s, background .2s;
  }
  .btn:hover { border-color: var(--mn-bone); }
  .btn-solid {
    background: var(--mn-bone);
    color: var(--mn-void);
    border-color: var(--mn-bone);
  }
  .btn-solid:hover { background: var(--mn-bone-2); border-color: var(--mn-bone-2); }
  .btn-ember {
    background: transparent; color: var(--mn-ember);
    border-color: rgba(198,90,63,0.5);
  }
  .btn-ember:hover { border-color: var(--mn-ember); }

  /* Fixed rail / scaffold ------------------------------------------- */
  .backlink {
    position: fixed; top: 20px; left: 20px; z-index: 200;
    font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
    background: var(--mn-void); color: var(--mn-silver-2);
    border: 1px solid var(--mn-edge); padding: 8px 12px;
  }
  .backlink:hover { color: var(--mn-bone); border-color: var(--mn-edge-2); }

  /* Global top rail: brand + nav ------------------------------------ */
  .rail {
    position: absolute; top: 0; left: 0; right: 0; z-index: 10;
    padding: 28px 48px;
    display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 48px;
    color: var(--mn-bone);
  }
  .rail .brand { display: inline-flex; align-items: center; gap: 14px; }
  .rail .brand svg.sigil { width: 28px; height: 32px; color: var(--mn-bone); }
  .rail .brand svg.sigil .ember { stroke: var(--mn-ember); }
  .rail .brand .wordmark {
    font-family: "Instrument Serif", Georgia, serif;
    font-size: 20px; letter-spacing: 0.02em;
  }
  .rail .brand .wordmark em { font-style: italic; color: var(--mn-silver-2); }

  .rail nav { display: flex; gap: 36px; justify-content: center; }
  .rail nav a {
    font-family: "JetBrains Mono", monospace; font-size: 11px;
    letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver-2);
  }
  .rail nav a:hover { color: var(--mn-bone); }
  .rail .meta {
    display: flex; align-items: center; gap: 18px;
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.22em; text-transform: uppercase; color: var(--mn-silver);
  }
  .rail .meta .cta {
    border: 1px solid var(--mn-edge-2); padding: 10px 14px; color: var(--mn-bone);
  }
  .rail .meta .cta:hover { border-color: var(--mn-bone); }

  /* ============================================================
   * HERO — obsidian monolith standing in black water
   * ============================================================ */
  .hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    background: var(--mn-void);
    color: var(--mn-bone);
  }

  /* Water: procedural dark turbulence. No stock image -- keeps control. */
  .hero-water {
    position: absolute; inset: 0;
    background:
      /* top vignette toward true black */
      linear-gradient(180deg, rgba(4,8,12,0.55) 0%, rgba(4,8,12,0) 35%, rgba(4,8,12,0) 65%, rgba(4,8,12,0.7) 100%),
      /* teal depth wash */
      radial-gradient(ellipse 120% 80% at 50% 55%, #0A2530 0%, #050D13 55%, #020609 100%);
    overflow: hidden;
  }
  /* SVG turbulence overlay sits on top */
  .hero-water svg.turb {
    position: absolute; inset: -5%; width: 110%; height: 110%;
    opacity: 0.55; mix-blend-mode: screen;
  }
  /* subtle ripple caustics */
  .hero-water .caustic {
    position: absolute; inset: 0;
    background-image:
      radial-gradient(ellipse 40% 2px at 20% 62%, rgba(255,255,255,0.12), transparent 60%),
      radial-gradient(ellipse 60% 2px at 70% 70%, rgba(255,255,255,0.08), transparent 60%),
      radial-gradient(ellipse 30% 1px at 45% 80%, rgba(255,255,255,0.10), transparent 60%);
    filter: blur(0.5px);
  }
  /* thin horizon line */
  .hero-water::after {
    content: ""; position: absolute; left: 0; right: 0; top: 42%;
    height: 1px; background: linear-gradient(90deg, transparent, rgba(232,228,220,0.14), transparent);
  }

  /* The monolith — hard-edged obsidian obelisk */
  .monolith {
    position: absolute;
    left: 50%; top: 12%;
    transform: translateX(-50%);
    width: 210px;
    height: 74%;
    z-index: 2;
    pointer-events: none;
  }
  .monolith .shaft {
    position: absolute;
    left: 50%; top: 0;
    transform: translateX(-50%);
    width: 100%;
    height: 85%;
    /* obsidian: near-black with the faintest sheen on the right edge */
    background:
      linear-gradient(90deg, #010406 0%, #030810 45%, #060F18 80%, #0A1824 100%);
    /* sharpen top edge, and cut a slight taper by masking */
    clip-path: polygon(6% 0, 94% 0, 100% 100%, 0 100%);
    box-shadow:
      inset 1px 0 0 rgba(255,255,255,0.02),
      inset -1px 0 0 rgba(232,228,220,0.06);
    overflow: hidden;
  }
  /* flow seams etched across the obsidian */
  .monolith .shaft svg.flow {
    position: absolute; inset: 0; width: 100%; height: 100%;
    opacity: 0.9;
  }
  /* thin vertical highlight on the trailing edge — incomprehensible tech, just an implied seam */
  .monolith .seam {
    position: absolute;
    right: 4%; top: 2%; bottom: 0;
    width: 1px;
    background: linear-gradient(180deg,
      transparent 0%,
      rgba(232,228,220,0.4) 10%,
      rgba(232,228,220,0.08) 60%,
      transparent 100%);
  }
  /* small HT emblem etched on the face of the monolith, like an insignia */
  .monolith .emblem {
    position: absolute;
    left: 50%; top: 36%;
    transform: translateX(-50%);
    width: 54px; height: 54px;
    color: var(--mn-bone);
    opacity: 0.85;
    filter: drop-shadow(0 0 12px rgba(232,228,220,0.15));
  }
  /* reflection in the water — compressed, wavering */
  .monolith .reflection {
    position: absolute;
    left: 50%; top: 85%;
    transform: translateX(-50%) scaleY(-1);
    width: 100%;
    height: 25%;
    background:
      linear-gradient(90deg, #010406 0%, #030810 45%, #060F18 80%, #0A1824 100%);
    clip-path: polygon(6% 0, 94% 0, 100% 100%, 0 100%);
    opacity: 0.35;
    filter: blur(1.5px);
    mask-image: linear-gradient(180deg, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
    -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
  }
  /* waterline ripple just under the shaft */
  .monolith .waterline {
    position: absolute;
    left: -30%; right: -30%; top: 83%;
    height: 8px;
    background:
      radial-gradient(ellipse 50% 100% at 50% 0%, rgba(232,228,220,0.28), transparent 70%);
    filter: blur(1px);
  }

  /* Hero content --------------------------------------------------- */
  .hero-content {
    position: relative; z-index: 3;
    padding-top: 170px; padding-bottom: 120px;
    display: grid; grid-template-columns: 1fr auto 1fr; gap: 64px; align-items: end;
    min-height: 100vh;
  }

  /* Simple hero: wordmark centered in abyssal water, nothing else */
  .hero-simple {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center;
    grid-template-columns: 1fr;
    padding-top: 0; padding-bottom: 0;
  }
  .hero-mark {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: clamp(64px, 9vw, 136px);
    line-height: 0.95;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--mn-bone);
    text-align: center;
    width: 100%;
  }
  .hero-mark em {
    font-style: italic;
    color: var(--mn-silver-2);
  }
  .hero-left {
    max-width: 420px;
  }
  .hero-left .eyebrow { display: block; margin-bottom: 24px; }
  .hero-left p {
    font-size: 15px; line-height: 1.65;
    color: var(--mn-silver-2);
    margin: 0 0 28px;
  }
  .hero-left .co {
    display: flex; gap: 12px; align-items: center;
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .hero-left .co::before {
    content: ""; display: inline-block; width: 6px; height: 6px; background: var(--mn-ember);
  }

  /* Center: the giant headline ring the monolith */
  .hero-center {
    text-align: center; padding-bottom: 32px;
  }
  .hero-center h1 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: clamp(80px, 11vw, 168px);
    line-height: 0.92;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--mn-bone);
  }
  .hero-center h1 em { font-style: italic; color: var(--mn-silver-2); }
  .hero-center .tag {
    display: inline-flex; align-items: center; gap: 14px;
    margin-top: 36px;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--mn-silver-2);
  }
  .hero-center .tag .bar { width: 40px; height: 1px; background: var(--mn-silver); }

  .hero-right {
    max-width: 320px; justify-self: end;
    display: flex; flex-direction: column; gap: 16px; align-items: flex-end;
  }
  .hero-right .btn { width: 100%; justify-content: space-between; }
  .hero-right .coords {
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--mn-silver);
    line-height: 1.8;
    text-align: right;
  }
  .hero-right .coords .val { color: var(--mn-bone); }

  /* Hero footer marker strip */
  .hero-rail {
    position: absolute; bottom: 0; left: 0; right: 0; z-index: 3;
    border-top: 1px solid rgba(232,228,220,0.08);
    padding: 16px 48px;
    display: flex; justify-content: space-between; align-items: center;
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver);
    background: linear-gradient(180deg, transparent, rgba(4,8,12,0.8));
  }
  .hero-rail .ticks { display: flex; gap: 20px; }
  .hero-rail .ticks span { color: var(--mn-silver-2); }

  /* ============================================================
   * STATS / LEDGER BAND
   * ============================================================ */
  .ledger {
    position: relative;
    overflow: hidden;
    background: transparent;
    border-top: 1px solid var(--mn-edge);
    border-bottom: 1px solid var(--mn-edge);
    padding: 80px 0;
  }
  .ledger-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .ledger-cell {
    padding: 0 32px;
    border-left: 1px solid var(--mn-edge);
  }
  .ledger-cell:first-child { border-left: 0; padding-left: 0; }
  .ledger-cell .eyebrow { display: block; margin-bottom: 20px; }
  .ledger-cell .num {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: 72px; line-height: 1;
    color: var(--mn-bone);
    margin-bottom: 16px;
  }
  .ledger-cell .num em { font-style: italic; color: var(--mn-silver-2); font-size: 42px; }
  .ledger-cell .num .unit { font-size: 28px; color: var(--mn-silver-2); margin-left: 2px; }
  .ledger-cell p {
    font-size: 13px; color: var(--mn-silver);
    margin: 0; max-width: 220px; line-height: 1.5;
  }

  /* ============================================================
   * SECTION SCAFFOLD
   * ============================================================ */
  .section { padding: 140px 0; position: relative; overflow: hidden; }
  .section-head {
    display: grid; grid-template-columns: 280px 1fr; gap: 64px;
    margin-bottom: 96px; align-items: start;
  }
  .section-head .idx {
    font-family: "JetBrains Mono", monospace; font-size: 11px;
    letter-spacing: 0.28em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .section-head .idx .num { color: var(--mn-ember); }
  .section-head .idx .line {
    margin-top: 20px; width: 60px; height: 1px; background: var(--mn-silver);
  }
  .section-head h2 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: clamp(44px, 5.5vw, 84px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--mn-bone);
    max-width: 900px;
  }
  .section-head h2 em { font-style: italic; color: var(--mn-silver-2); }

  /* ============================================================
   * PLATFORM — three monoliths
   * ============================================================ */
  .pillars {
    display: grid; grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--mn-edge);
    border-bottom: 1px solid var(--mn-edge);
  }
  .pillar {
    border-left: 1px solid var(--mn-edge);
    padding: 72px 40px 56px;
    position: relative;
    min-height: 460px;
    display: flex; flex-direction: column; align-items: center;
    text-align: center;
  }
  .pillar:first-child { border-left: 0; }
  .pillar .glyph {
    width: 96px; height: 96px;
    margin: 0 auto 40px;
    display: block;
    color: var(--mn-bone);
  }
  .pillar .glyph svg { width: 100%; height: 100%; display: block; }
  .pillar .glyph .edge { stroke: var(--mn-edge-2); }
  .pillar .glyph .fill { fill: #050D14; }
  .pillar .glyph .line { stroke: var(--mn-silver-2); fill: none; }
  .pillar .glyph .line-soft { stroke: var(--mn-silver); fill: none; opacity: 0.6; }
  .pillar .glyph .ember { fill: var(--mn-ember); }
  .pillar .glyph .ember-stroke { stroke: var(--mn-ember); fill: none; }
  .pillar .glyph .bone { fill: var(--mn-bone); }
  .pillar h3 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400; font-style: normal;
    font-size: 30px; line-height: 1.1;
    margin: 0 0 16px;
    color: var(--mn-bone);
  }
  .pillar p {
    font-size: 14px; line-height: 1.65;
    color: var(--mn-silver-2);
    margin: 0 0 auto;
    max-width: 320px;
  }
  .pillar .tags {
    margin-top: 40px;
    display: flex; flex-direction: column; gap: 0;
    border-top: 1px solid var(--mn-edge);
    width: 100%;
    text-align: left;
  }
  .pillar .tags .t {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--mn-edge);
    font-family: "JetBrains Mono", monospace; font-size: 11px;
    letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .pillar .tags .t:last-child { border-bottom: 0; }
  .pillar .tags .t .v { color: var(--mn-bone); font-size: 10px; }

  /* ============================================================
   * TWIN — edge-to-edge black water scene with live telemetry
   * ============================================================ */
  .twin {
    position: relative;
    background: transparent;
    overflow: hidden;
  }
  .twin-bg {
    position: absolute; inset: 0;
    background:
      linear-gradient(180deg, rgba(4,8,12,0.85) 0%, rgba(4,8,12,0.45) 40%, rgba(4,8,12,0.9) 100%),
      radial-gradient(ellipse 70% 60% at 70% 40%, #0D2A37 0%, #030A10 70%);
  }
  .twin-bg svg.turb-2 {
    position: absolute; inset: -5%; width: 110%; height: 110%;
    opacity: 0.4; mix-blend-mode: screen;
  }
  .twin-inner {
    position: relative; z-index: 2;
    padding: 160px 0 140px;
    display: block;
  }
  .twin-left { max-width: 920px; }
  .twin-left p { max-width: 720px; }
  .twin-left { color: var(--mn-bone); }
  .twin-left .idx {
    font-family: "JetBrains Mono", monospace; font-size: 11px;
    letter-spacing: 0.28em; text-transform: uppercase;
    color: var(--mn-silver); margin-bottom: 28px; display: inline-block;
  }
  .twin-left .idx .num { color: var(--mn-ember); }
  .twin-left h2 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400; font-size: clamp(44px, 5.5vw, 84px);
    line-height: 1.02; letter-spacing: -0.02em;
    margin: 0 0 32px;
  }
  .twin-left h2 em { font-style: italic; color: var(--mn-silver-2); }
  .twin-left p {
    font-size: 15px; line-height: 1.7;
    color: var(--mn-silver-2); max-width: 460px;
    margin: 0 0 40px;
  }
  .twin-left .btn { margin-right: 12px; }

  .twin-card {
    background: var(--mn-void);
    border: 1px solid var(--mn-edge);
    padding: 0;
    position: relative;
  }
  .twin-card .head {
    display: flex; justify-content: space-between; align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--mn-edge);
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .twin-card .head .live { display: flex; align-items: center; gap: 8px; color: var(--mn-bone); }
  .twin-card .head .live .dot {
    width: 6px; height: 6px; background: var(--mn-ember);
    animation: pulse 2.2s ease-in-out infinite;
  }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

  .twin-card .body { padding: 0; }
  .twin-card .row {
    display: grid; grid-template-columns: 1fr auto;
    padding: 18px 24px; border-bottom: 1px solid var(--mn-edge);
    font-family: "JetBrains Mono", monospace; font-size: 12px;
    align-items: baseline;
  }
  .twin-card .row:last-child { border-bottom: 0; }
  .twin-card .row .k {
    font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .twin-card .row .v { color: var(--mn-bone); font-size: 14px; font-weight: 500; }
  .twin-card .row .v.ember { color: var(--mn-ember); }
  .twin-card .row .v.silver { color: var(--mn-silver-2); }

  /* sparkline row */
  .twin-card .spark {
    padding: 20px 24px; border-bottom: 1px solid var(--mn-edge);
    background: rgba(10,20,28,0.6);
  }
  .twin-card .spark svg { width: 100%; height: 48px; }

  /* ============================================================
   * COMPARE — stone tablet table
   * ============================================================ */
  .compare {
    background: transparent;
  }
  .compare-table {
    border: 1px solid var(--mn-edge);
    background: rgba(4,10,16,0.72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .compare-table table { width: 100%; border-collapse: collapse; }
  .compare-table th, .compare-table td {
    padding: 22px 24px; text-align: left;
    border-bottom: 1px solid var(--mn-edge);
    font-size: 13px;
  }
  .compare-table th {
    font-family: "JetBrains Mono", monospace;
    font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver); font-weight: 400;
    background: rgba(10,20,28,0.6);
    border-bottom: 1px solid var(--mn-edge-2);
  }
  .compare-table th.us {
    color: var(--mn-ember);
    border-bottom: 1px solid var(--mn-ember);
  }
  .compare-table td.k { color: var(--mn-silver-2); }
  .compare-table td.cell-us { background: rgba(198,90,63,0.04); color: var(--mn-bone); }
  .compare-table tr:last-child td { border-bottom: 0; }

  .mark-y { color: var(--mn-bone); font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.18em; }
  .mark-p { color: var(--mn-silver); font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.18em; }
  .mark-n { color: var(--mn-edge-2); font-family: "JetBrains Mono", monospace; font-size: 14px; }

  /* ============================================================
   * CTA — deep water CTA, obelisk reprise
   * ============================================================ */
  .cta {
    position: relative;
    padding: 160px 0;
    background: transparent;
    overflow: hidden;
    border-top: 1px solid var(--mn-edge);
  }
  .cta-bg {
    position: absolute; inset: 0;
    background:
      linear-gradient(180deg, rgba(4,8,12,0.7), rgba(4,8,12,0.95)),
      radial-gradient(ellipse 80% 60% at 50% 60%, #0B2430 0%, #020609 70%);
  }
  .cta-bg svg.turb-3 {
    position: absolute; inset: -5%; width: 110%; height: 110%;
    opacity: 0.35; mix-blend-mode: screen;
  }
  .cta-inner {
    position: relative; z-index: 2;
    display: grid; grid-template-columns: 1fr auto; gap: 80px; align-items: end;
  }
  .cta h2 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400; font-size: clamp(56px, 7vw, 108px);
    line-height: 1; letter-spacing: -0.02em; margin: 0;
    color: var(--mn-bone); max-width: 1000px;
  }
  .cta h2 em { font-style: italic; color: var(--mn-silver-2); }
  .cta p {
    font-size: 16px; line-height: 1.65; color: var(--mn-silver-2);
    margin: 32px 0 48px; max-width: 560px;
  }
  .cta .actions { display: flex; gap: 16px; flex-wrap: wrap; }
  .cta-phase {
    padding: 28px 0;
    border-left: 1px solid var(--mn-edge);
    display: grid; grid-template-columns: 1fr; gap: 24px;
    min-width: 260px;
  }
  .cta-phase .block { padding-left: 28px; }
  .cta-phase .block .eyebrow { display: block; margin-bottom: 10px; }
  .cta-phase .block .label {
    font-family: "Instrument Serif", Georgia, serif;
    font-size: 22px; line-height: 1.2; color: var(--mn-bone);
  }
  .cta-phase .block .label em { font-style: italic; color: var(--mn-silver-2); }

  /* ============================================================
   * FOOTER
   * ============================================================ */
  footer.site {
    background: var(--mn-void); color: var(--mn-bone);
    padding: 80px 0 28px;
    border-top: 1px solid var(--mn-edge);
  }
  .footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px; margin-bottom: 80px;
  }
  .footer-col h4 {
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.24em; text-transform: uppercase;
    color: var(--mn-silver); font-weight: 400;
    margin: 0 0 20px;
  }
  .footer-col ul { list-style: none; padding: 0; margin: 0; font-size: 14px; }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a { color: var(--mn-silver-2); }
  .footer-col a:hover { color: var(--mn-bone); }
  .footer-col .about { color: var(--mn-silver-2); font-size: 14px; line-height: 1.7; max-width: 340px; margin-top: 20px; }

  .footer-bottom {
    display: flex; justify-content: space-between; padding-top: 24px;
    border-top: 1px solid var(--mn-edge);
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--mn-silver);
  }
  .footer-bottom a { color: var(--mn-ember); }

  /* Mobile safety pass — stack grids, prevent horizontal overflow.
     Functional fallback only; a proper mobile design pass is separate work. */
  @media (max-width: 820px) {
    html, body { overflow-x: hidden; }
    .wrap { padding: 0 20px; }

    /* Header rail (absolutely positioned over the hero) */
    .rail { grid-template-columns: 1fr; gap: 14px; text-align: center; padding: 18px 20px; }
    .rail .brand { justify-content: center; }
    .rail nav { flex-wrap: wrap; gap: 18px; justify-content: center; }
    .rail .meta { justify-content: center; display: flex; flex-wrap: wrap; gap: 12px; }

    /* Hero-simple layout — headline must clear the taller stacked rail
       (the rail is position:absolute, so the hero has to reserve top space) */
    .hero-simple {
      padding-top: 210px !important; padding-bottom: 80px !important;
      min-height: auto !important;
    }
    .hero-mark {
      font-size: clamp(40px, 12vw, 72px);
      overflow-wrap: anywhere;
      word-break: break-word;
      padding: 0 4px;
    }
    .hero-rail { padding: 12px 20px; flex-wrap: wrap; gap: 8px; font-size: 9px; }
    .hero-rail .ticks { flex-wrap: wrap; gap: 10px; }

    /* Hero: stack the 3-col into a single column */
    .hero-content {
      grid-template-columns: 1fr; gap: 48px;
      padding-top: 120px; padding-bottom: 80px;
      align-items: start; min-height: auto;
    }
    .hero-left, .hero-right { max-width: 100%; justify-self: stretch; }
    .hero-right { align-items: flex-start; }
    .hero-right .btn { width: 100%; }
    .hero-center { padding-bottom: 0; }
    .hero-center h1 { font-size: clamp(48px, 13vw, 92px); }

    /* Ledger: stack cells, flip the dividing borders */
    .ledger-grid { grid-template-columns: 1fr; }
    .ledger-cell {
      padding: 28px 0;
      border-left: 0; border-top: 1px solid var(--mn-edge);
    }
    .ledger-cell:first-child { border-top: 0; padding-top: 0; }
    .ledger-cell .num { font-size: 56px; }
    .ledger-cell .num em { font-size: 32px; }

    /* Section scaffold */
    .section { padding: 80px 0; }
    .section-head {
      grid-template-columns: 1fr; gap: 24px; margin-bottom: 48px;
    }

    /* Pillars: stack, flip borders */
    .pillars { grid-template-columns: 1fr; }
    .pillar {
      border-left: 0; border-top: 1px solid var(--mn-edge);
      min-height: auto; padding: 48px 24px;
    }
    .pillar:first-child { border-top: 0; }

    /* Twin / compare sections — horizontal scroll fallback for wide content */
    .compare-table { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .twin-left, .twin-left p { max-width: 100%; }

    /* CTA: stack */
    .cta-inner { grid-template-columns: 1fr; gap: 48px; }
    .cta-phase { min-width: 0; }
    .cta .actions .btn { width: 100%; }

    /* Footer: stack columns */
    .footer-grid {
      grid-template-columns: 1fr; gap: 36px; margin-bottom: 48px;
    }
    .footer-bottom {
      flex-direction: column; gap: 10px; text-align: center;
    }
  }

  /* Accessibility */
  @media (prefers-reduced-motion: reduce) {
    .twin-card .head .live .dot { animation: none; }
  }

/* ============================================================
   Accessibility — skip link
   Visually hidden by default, becomes a visible chip on focus.
   ============================================================ */

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 1000;
    padding: 12px 18px;
    background: var(--mn-ember);
    color: var(--mn-bone);
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 6px;
    transition: top 0.15s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
    top: 16px;
    outline: 2px solid var(--mn-bone);
    outline-offset: 2px;
}

/* ============================================================
   Status pill — small uppercase capsule with ember outline.
   Used to label feature/section status (Pilot stage, Active R&D,
   Coming soon, etc.).
   ============================================================ */

.status-pill {
    display: inline-block;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--mn-ember);
    border: 1px solid var(--mn-ember);
    padding: 6px 10px;
    border-radius: 999px;
}

.pillar h3 em {
    font-style: italic;
    color: var(--mn-silver-2);
}

/* ============================================================
   Legal pages (privacy.html, terms.html)
   Simplified header + content + typography for short legal docs.
   ============================================================ */

.legal-shell {
    background: var(--mn-void);
    color: var(--mn-bone);
    min-height: 100vh;
}

.legal-rail {
    padding: 28px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--mn-edge);
}

.legal-rail .brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--mn-bone);
}

.legal-rail .brand .wordmark {
    font-family: "Instrument Serif", Georgia, serif;
    font-size: 20px;
    letter-spacing: 0.02em;
}

.legal-rail .brand .wordmark em {
    font-style: italic;
    color: var(--mn-silver-2);
}

.legal-rail .back {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--mn-silver-2);
}

.legal-rail .back:hover { color: var(--mn-bone); }

.legal-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 80px 48px;
}

.legal-eyebrow {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--mn-ember);
}

.legal-main h1 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: 56px;
    line-height: 1.05;
    letter-spacing: -0.01em;
    color: var(--mn-bone);
    margin: 16px 0 8px;
}

.legal-meta {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mn-silver);
    margin-bottom: 48px;
}

.legal-main h2 {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: 28px;
    line-height: 1.15;
    color: var(--mn-bone);
    margin: 48px 0 16px;
}

.legal-main p,
.legal-main li {
    font-size: 15px;
    line-height: 1.7;
    color: var(--mn-silver-2);
}

.legal-main ul { padding-left: 20px; }

.legal-main a { color: var(--mn-ember); }

.legal-main a:hover { color: var(--mn-bone); }

@media (max-width: 820px) {
    .legal-rail { padding: 18px 20px; }
    .legal-main { padding: 48px 20px; }
    .legal-main h1 { font-size: 40px; }
    .legal-main h2 { font-size: 22px; }
}

/* Visible focus rings on every interactive element. */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--mn-ember);
    outline-offset: 3px;
    border-radius: 2px;
}

/* Hide focus ring for mouse users; keyboard users still get it. */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================================
   Center-content layout
   Applied via <body class="center-content"> on pages that center
   their main content (index.html, water.html, privacy.html,
   terms.html). The header rail and footer stay left/distributed
   as designed.
   ============================================================ */

body.center-content main {
    text-align: center;
}

body.center-content main h1,
body.center-content main h2,
body.center-content main h3,
body.center-content main h4,
body.center-content main p {
    text-align: center;
}

/* Paragraphs that carry their own max-width (often via inline style)
   need margin auto to actually sit on the page's vertical axis —
   text-align centers the text but not the block. */
body.center-content main p {
    margin-left: auto;
    margin-right: auto;
}

/* The default .pillars grid is 3 columns (for water.html's Platform
   section). The Recovery section on index.html only has 2 cards, so
   the default grid leaves an empty third column on the right and
   makes the pair appear left-shifted. Override to 2 columns here. */
#recovery .pillars {
    grid-template-columns: repeat(2, 1fr);
}

/* Section head defaults to a 2-col grid (eyebrow left, h2 right).
   When centering, collapse to a single stacked column so the eyebrow
   and headline sit on the page's vertical axis instead of drifting
   to the side. */
body.center-content main .section-head {
    grid-template-columns: 1fr;
    gap: 24px;
    justify-items: center;
}

body.center-content main .section-head .idx {
    margin: 0 auto;
}

body.center-content main .section-head h2 {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

body.center-content main .ledger-cell {
    text-align: center;
    border-left: 0;
    padding: 28px 24px;
}

body.center-content main .twin-left,
body.center-content main .twin-left p {
    margin-left: auto;
    margin-right: auto;
    max-width: 720px;
}

/* Center inline-block buttons and meta widgets that sit inside
   generic <div> wrappers (e.g. the "See the water case" CTA below
   the Observability copy, the cta-phase block, the hero-rail bar). */
body.center-content main .twin-left > div,
body.center-content main .cta-inner,
body.center-content main .cta-inner > div,
body.center-content main .actions {
    text-align: center;
    justify-content: center;
}

/* ============================================================
   Diagram card
   Network-topology diagram on water.html. Light card on the dark
   page. Tight padding, no heavy chrome, subtle frame.
   ============================================================ */

.diagram-card {
    margin: 40px auto 0;
    max-width: 720px;
    padding: 12px;
    background: #ffffff;
    border: 1px solid var(--mn-edge-2);
    border-radius: 8px;
}

.diagram-card img {
    width: 100%;
    height: auto;
    display: block;
}

.diagram-card figcaption {
    margin: 16px auto 0;
    max-width: 600px;
    font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
    font-size: 13px;
    line-height: 1.5;
    color: var(--mn-silver-2);
    text-align: center;
}

@media (max-width: 820px) {
    .diagram-card {
        margin-top: 24px;
        padding: 8px;
        border-radius: 6px;
    }
    .diagram-card figcaption {
        margin-top: 12px;
        font-size: 12px;
    }
}