:root {
    --void: #030504; --deep: #060a08; --panel: #0a100d; --panel-raised: #0e1512;
    --grid-line: rgba(140, 255, 210, 0.055); --grid-line-strong: rgba(140, 255, 210, 0.11);
    --text: #dfeee6; --text-soft: #8ea69a; --text-dim: #4d6459;
    --signal: #3dffb0; --signal-dim: #1c8a63; --signal-hot: #ffb340;
    --pos: #3dffb0; --neg: #ff6b5e;
    --hairline: rgba(223, 238, 230, 0.09); --hairline-strong: rgba(223, 238, 230, 0.18);
  }
  :root[data-theme="light"] {
    --void: #f4f6f2; --deep: #ffffff; --panel: #ffffff; --panel-raised: #fbfcf9;
    --grid-line: rgba(10, 40, 25, 0.05); --grid-line-strong: rgba(10, 40, 25, 0.10);
    --text: #0a1410; --text-soft: #47554d; --text-dim: #8b978f;
    --signal: #10935f; --signal-dim: #0b7048; --signal-hot: #a9691f;
    --pos: #10935f; --neg: #c2453a;
    --hairline: rgba(10, 20, 16, 0.10); --hairline-strong: rgba(10, 20, 16, 0.20);
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0; background: var(--void); color: var(--text);
    font-family: -apple-system, "Segoe UI", "Noto Sans", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.55; -webkit-font-smoothing: antialiased; overflow-x: hidden; position: relative;
  }
  body::before {
    content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 40%, transparent 85%);
  }
  .display { font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif; text-wrap: balance; }
  .mono { font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", monospace; font-variant-numeric: tabular-nums; }
  a { color: inherit; }
  .wrap { max-width: 1220px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 1; }
  @media (max-width: 640px) { .wrap { padding: 0 1.25rem; } }
  .corner-brackets { position: relative; }
  .corner-brackets::before, .corner-brackets::after { content: ""; position: absolute; width: 10px; height: 10px; border: 1px solid var(--signal-dim); opacity: 0.7; }
  .corner-brackets::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
  .corner-brackets::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

  .statusbar { position: relative; z-index: 60; border-bottom: 1px solid var(--hairline); background: color-mix(in srgb, var(--deep) 92%, transparent); overflow: hidden; height: 30px; display: flex; align-items: center; }
  .statusbar-track { display: flex; gap: 3.2rem; white-space: nowrap; animation: ticker-scroll 42s linear infinite; padding-left: 100%; }
  @media (prefers-reduced-motion: reduce) { .statusbar-track { animation: none; padding-left: 1rem; } }
  @keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-100%); } }
  .ticker-item { font-size: 0.7rem; letter-spacing: 0.03em; color: var(--text-dim); display: inline-flex; align-items: center; gap: 0.5rem; }

  @keyframes intro-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @media (prefers-reduced-motion: no-preference) {
    nav.topbar { animation: intro-fade-in 0.5s ease both; }
    .page-hero { animation: intro-fade-in 0.7s ease 0.08s both; }
  }

  nav.topbar { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: color-mix(in srgb, var(--void) 74%, transparent); border-bottom: 1px solid var(--hairline); }
  .topbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 1.05rem 0; }
  .wordmark { display: flex; align-items: center; gap: 0.65rem; font-family: ui-monospace, "SF Mono", "Cascadia Code", monospace; font-size: 1.02rem; font-weight: 700; letter-spacing: 0.06em; text-decoration: none; }
  .wordmark .dot { width: 8px; height: 8px; background: var(--signal); box-shadow: 0 0 10px 1px var(--signal), 0 0 0 3px color-mix(in srgb, var(--signal) 18%, transparent); flex-shrink: 0; }
  .nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; margin: 0; padding: 0; }
  .nav-links a.navlink { text-decoration: none; font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--text-soft); transition: color 0.15s ease; font-weight: 600; }
  .nav-links a.navlink:hover, .nav-links a.navlink.active { color: var(--signal); }
  @media (max-width: 860px) { .nav-links .nav-page-link { display: none; } .nav-links { gap: 0.6rem; } }
  .btn-cta { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--void); background: var(--signal); padding: 0.68rem 1.25rem; position: relative; overflow: hidden; transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease; font-family: ui-monospace, "SF Mono", monospace; }
  .btn-cta:hover { background: var(--text); transform: translateY(-1px); box-shadow: 0 0 24px -4px var(--signal); }
  .btn-ghost { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; font-size: 0.74rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-soft); border: 1px solid var(--hairline-strong); padding: 0.66rem 1.2rem; font-family: ui-monospace, "SF Mono", monospace; transition: border-color 0.15s ease, color 0.15s ease; }
  .btn-ghost:hover { border-color: var(--signal); color: var(--signal); }
  .btn-nav { padding: 0.56rem 1.05rem; font-size: 0.7rem; }

  .page-hero { position: relative; padding: 3.6rem 0 3rem; border-bottom: 1px solid var(--hairline-strong); }
  .eyebrow { display: inline-flex; align-items: center; gap: 0.55rem; font-family: ui-monospace, "SF Mono", monospace; font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--signal); font-weight: 700; margin-bottom: 1.4rem; border: 1px solid var(--grid-line-strong); padding: 0.4rem 0.75rem; }
  .pulse-dot { width: 6px; height: 6px; border-radius: 999px; background: var(--pos); box-shadow: 0 0 6px 1px var(--pos); animation: pulse 2.2s infinite; flex-shrink: 0; }
  @media (prefers-reduced-motion: reduce) { .pulse-dot { animation: none; } }
  @keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--pos) 55%, transparent); } 70% { box-shadow: 0 0 0 9px color-mix(in srgb, var(--pos) 0%, transparent); } 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--pos) 0%, transparent); } }
  h1.page-title { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 500; line-height: 1.06; margin: 0 0 1.2rem; max-width: 22ch; letter-spacing: -0.015em; }
  h1.page-title em { font-style: italic; color: var(--signal); }
  .page-sub { font-size: 1.05rem; color: var(--text-soft); max-width: 42rem; margin: 0; }

  section { padding: 4.5rem 0; position: relative; z-index: 1; }
  .section-eyebrow { font-family: ui-monospace, "SF Mono", monospace; font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--signal-hot); font-weight: 700; margin-bottom: 0.7rem; display: flex; align-items: center; gap: 0.6rem; }
  .section-eyebrow .idx { color: var(--text-dim); }
  .solution-block { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 3rem; align-items: start; padding: 3.2rem 0; border-top: 1px solid var(--hairline-strong); }
  .solution-block:first-of-type { border-top: none; }
  @media (max-width: 900px) { .solution-block { grid-template-columns: 1fr; gap: 1.6rem; } }
  .solution-block h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 500; margin: 0 0 0.8rem; letter-spacing: -0.01em; }
  .solution-block .pitch { font-size: 1rem; color: var(--text-soft); margin: 0; max-width: 30rem; }
  .solution-coda { margin: 1.5rem 0 0; padding-top: 1.1rem; border-top: 1px solid var(--hairline); font-size: 0.82rem; letter-spacing: 0.06em; color: var(--text-dim); }

    .solution-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1.1rem; }
  .solution-list li { border: 1px solid var(--hairline-strong); background: var(--panel); padding: 1.1rem 1.3rem; }
  .solution-list li b { display: block; font-size: 0.95rem; margin-bottom: 0.3rem; }
  .solution-list li span { font-size: 0.85rem; color: var(--text-soft); }
  .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s cubic-bezier(.16,.84,.44,1), transform 0.7s cubic-bezier(.16,.84,.44,1); }
  .reveal.in { opacity: 1; transform: translateY(0); }
  @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

  .trust-band { border: 1px solid var(--hairline-strong); background: var(--panel); padding: 2.5rem 2.7rem; display: flex; gap: 2.5rem; align-items: center; flex-wrap: wrap; position: relative; }
  @media (max-width: 760px) { .trust-band { padding: 1.8rem; } }
  .trust-mark { font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 1.7rem; color: var(--signal); flex-shrink: 0; }
  .trust-band p { margin: 0; color: var(--text-soft); font-size: 0.97rem; max-width: 44rem; }
  .trust-band p strong { color: var(--text); }

  .cta-band { border: 1px solid var(--hairline-strong); background: var(--panel); padding: 2.6rem; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
  .cta-band h3 { margin: 0; font-size: 1.3rem; font-weight: 500; }
  .cta-band-ctas { display: flex; gap: 0.9rem; flex-wrap: wrap; }

  footer { border-top: 1px solid var(--hairline-strong); padding: 3rem 0 2.5rem; position: relative; z-index: 1; }
  .footer-grid { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; margin-bottom: 2rem; }
  .footer-links { display: flex; gap: 1.8rem; list-style: none; padding: 0; margin: 0; }
  .footer-links a { text-decoration: none; color: var(--text-soft); font-size: 0.8rem; letter-spacing: 0.03em; }
  .footer-links a:hover { color: var(--signal); }
  .footer-legal { font-size: 0.74rem; color: var(--text-dim); max-width: 60rem; line-height: 1.6; border-top: 1px solid var(--hairline); padding-top: 1.6rem; }
  .footer-bottom { margin-top: 1.4rem; font-size: 0.72rem; color: var(--text-dim); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; font-family: ui-monospace, "SF Mono", monospace; }
  /* ---------- Splash screen ---------- */
  #splash-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--void);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: splash-out 1.15s ease forwards;
  }
  #splash-screen .splash-mark {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: ui-monospace, "SF Mono", "Cascadia Code", monospace;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--text);
    animation: splash-mark-pulse 1.15s ease forwards;
  }
  #splash-screen .splash-dot {
    width: 10px;
    height: 10px;
    background: var(--signal);
    box-shadow: 0 0 14px 2px var(--signal);
    flex-shrink: 0;
  }
  @keyframes splash-mark-pulse {
    0% { opacity: 0; transform: scale(0.94); }
    28% { opacity: 1; transform: scale(1); }
    72% { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(1.03); }
  }
  @keyframes splash-out {
    0% { opacity: 1; }
    78% { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
  }
  @media (prefers-reduced-motion: reduce) {
    #splash-screen { display: none; }
  }