:root {
    --ground: #f2ecdf; --surface: #fbf7ee; --surface-2: #f6efe0;
    --ink: #3f2c1b; --ink-soft: #6c5a45; --ink-faint: #93826a;
    --accent: #b3552a; --accent-deep: #8f4718; --accent-tint: #f4ddc8;
    --line: rgba(63,44,27,0.15); --line-soft: rgba(63,44,27,0.08); --ring: rgba(63,44,27,0.10);
    --shadow: 0 1px 2px rgba(40,26,12,0.06), 0 8px 24px rgba(40,26,12,0.06);
    --winshadow: 0 2px 6px rgba(40,26,12,0.10), 0 30px 70px rgba(40,26,12,0.22);
    --display: 800 clamp(2.5rem,6vw,4.3rem)/1.03 "Helvetica Neue","Segoe UI",system-ui,sans-serif;
    --sans: "Segoe UI",system-ui,-apple-system,"Helvetica Neue",sans-serif;
    --mono: ui-monospace,"SF Mono","Cascadia Code","Consolas",monospace;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --ground: #17110a; --surface: #201810; --surface-2: #241b11;
      --ink: #f1e7d7; --ink-soft: #c3b39a; --ink-faint: #8f7d63;
      --accent: #d67540; --accent-deep: #e08a58; --accent-tint: #332315;
      --line: rgba(241,231,215,0.14); --line-soft: rgba(241,231,215,0.07); --ring: rgba(241,231,215,0.10);
      --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 10px 30px rgba(0,0,0,0.35);
      --winshadow: 0 2px 8px rgba(0,0,0,0.4), 0 30px 70px rgba(0,0,0,0.5);
    }
  }
  :root[data-theme="dark"] {
    --ground: #17110a; --surface: #201810; --surface-2: #241b11;
    --ink: #f1e7d7; --ink-soft: #c3b39a; --ink-faint: #8f7d63;
    --accent: #d67540; --accent-deep: #e08a58; --accent-tint: #332315;
    --line: rgba(241,231,215,0.14); --line-soft: rgba(241,231,215,0.07); --ring: rgba(241,231,215,0.10);
    --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 10px 30px rgba(0,0,0,0.35);
    --winshadow: 0 2px 8px rgba(0,0,0,0.4), 0 30px 70px rgba(0,0,0,0.5);
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
  .wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
  h1, h2, h3 { text-wrap: balance; margin: 0; }
  p { margin: 0; }

  .legend { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-deep); display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; }
  .legend::before { content: ""; width: 11px; height: 11px; border-radius: 50%; border: 2px solid var(--accent); flex: none; }

  .btn { display: inline-flex; align-items: center; gap: 8px; font: inherit; font-weight: 650; padding: 12px 20px; border-radius: 10px; border: 1px solid var(--accent); background: var(--accent); color: #fbf3ea; text-decoration: none; cursor: pointer; transition: transform .12s ease, background .12s ease; }
  .btn:hover { background: var(--accent-deep); border-color: var(--accent-deep); transform: translateY(-1px); }
  .btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
  .btn.ghost:hover { background: var(--surface-2); border-color: var(--ink-faint); transform: translateY(-1px); }
  a:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 10px; }

  .nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--ground) 86%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line-soft); }
  .nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
  .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); }
  .brand .mark { width: 34px; height: 34px; display: block; }
  .brand .word { font-weight: 750; letter-spacing: -0.01em; font-size: 18px; }
  .navlinks { display: flex; align-items: center; gap: 26px; }
  .navlinks a:not(.btn) { color: var(--ink-soft); text-decoration: none; font-size: 15px; font-weight: 550; }
  .navlinks a:not(.btn):hover { color: var(--ink); }
  .navlinks .plain { display: none; }
  @media (min-width: 720px) { .navlinks .plain { display: inline; } }

  .win { border-radius: 12px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--winshadow); }
  .winbar { display: flex; align-items: center; gap: 12px; padding: 9px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
  .dots { display: inline-flex; gap: 6px; }
  .dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); display: block; }
  .url { font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; color: var(--ink-faint); }
  .win img { display: block; width: 100%; height: auto; }
  .phone { width: 280px; max-width: 100%; margin: 0 auto; border-radius: 42px; padding: 12px; background: #17120c; border: 1px solid var(--line); box-shadow: var(--winshadow); }
  .phone img { display: block; width: 100%; height: auto; border-radius: 30px; }

  .hero { position: relative; overflow: hidden; }
  .hero .wrap { padding-top: 70px; padding-bottom: 18px; position: relative; z-index: 2; }
  .hero .head { text-align: center; }
  .hero h1 { font: var(--display); letter-spacing: -0.025em; max-width: 20ch; margin: 0 auto; }
  .hero .lead { margin: 22px auto 0; max-width: 60ch; font-size: clamp(1.05rem,1.7vw,1.28rem); color: var(--ink-soft); line-height: 1.55; }
  .hero .actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
  .hero .note { margin-top: 16px; font-size: 14px; color: var(--ink-faint); }
  .hero .shot { margin: 44px auto 0; max-width: 1000px; }
  .bearing { position: absolute; right: -220px; top: -160px; width: 640px; height: 640px; z-index: 1; color: var(--ring); pointer-events: none; }

  section { position: relative; }
  .band { padding: 74px 0; }
  .band h2 { font-size: clamp(1.7rem,3.4vw,2.5rem); letter-spacing: -0.02em; max-width: 20ch; }
  .band .sub { margin-top: 16px; max-width: 58ch; color: var(--ink-soft); font-size: 1.08rem; }

  .problem .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
  @media (max-width: 900px) { .problem .wrap { grid-template-columns: 1fr; gap: 30px; } }
  .problem .whofor { background: var(--surface-2); border: 1px solid var(--line); border-radius: 16px; padding: 26px 30px; }
  .problem .whofor .lbl { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-deep); margin: 0 0 18px; }
  .problem .whofor ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 17px; }
  .problem .whofor li { color: var(--ink-soft); line-height: 1.46; padding-left: 22px; position: relative; }
  .problem .whofor li::before { content: ""; position: absolute; left: 0; top: 9px; width: 9px; height: 9px; border-radius: 50%; border: 2px solid var(--accent); }
  .problem .whofor b { color: var(--ink); }

  .grid { margin-top: 44px; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
  @media (max-width: 900px) { .grid { grid-template-columns: repeat(2,1fr); } }
  @media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
  .card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px 22px; box-shadow: var(--shadow); }
  .card .tag { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-deep); }
  .card h3 { margin-top: 12px; font-size: 1.16rem; letter-spacing: -0.01em; }
  .card p { margin-top: 8px; color: var(--ink-soft); font-size: 0.98rem; line-height: 1.55; }

  .showcase { background: var(--surface-2); border-top: 1px solid var(--line-soft); }
  .showcase + .showcase { border-top: none; }
  .show-grid { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: 48px; align-items: center; }
  .show-grid.flip { grid-template-columns: 1.18fr 0.82fr; }
  @media (max-width: 900px) { .show-grid, .show-grid.flip { grid-template-columns: 1fr; gap: 30px; } }
  .show-copy .sub { margin-top: 14px; color: var(--ink-soft); }
  .companion .wrap { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: center; }
  @media (max-width: 900px) { .companion .wrap { grid-template-columns: 1fr; gap: 34px; } }

  .pricing .panel { margin-top: 40px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 40px; box-shadow: var(--shadow); display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
  @media (max-width: 760px) { .pricing .panel { grid-template-columns: 1fr; padding: 30px; gap: 26px; } }
  .pricing .panel h3 { font-size: 1.5rem; letter-spacing: -0.02em; }
  .pricing .panel .say { margin-top: 12px; color: var(--ink-soft); }
  .plist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
  .plist li { display: flex; gap: 13px; align-items: flex-start; font-size: 1rem; }
  .plist .dot { flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 50%; background: var(--accent-tint); color: var(--accent-deep); display: grid; place-items: center; }
  .plist .dot svg { width: 13px; height: 13px; }
  .plist b { color: var(--ink); }
  .plist .say { color: var(--ink-soft); }

  .cta { text-align: center; padding: 88px 0 60px; }
  .cta h2 { font-size: clamp(1.9rem,4vw,2.8rem); letter-spacing: -0.025em; margin: 0 auto; max-width: 18ch; }
  .cta p { margin: 16px auto 0; max-width: 46ch; color: var(--ink-soft); }
  .cta .actions { margin-top: 30px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

  footer { border-top: 1px solid var(--line-soft); padding: 34px 0; }
  footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 26px; align-items: center; justify-content: space-between; color: var(--ink-faint); font-size: 14px; }
  footer a { color: var(--ink-soft); text-decoration: none; }
  footer a:hover { color: var(--accent-deep); }
  footer .made b { color: var(--ink-soft); font-weight: 650; }

  @media (prefers-reduced-motion: no-preference) {
    .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
    .reveal.in { opacity: 1; transform: none; }
  }

  .network .net-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 48px; align-items: center; }
  @media (max-width: 900px) { .network .net-grid { grid-template-columns: 1fr; gap: 30px; } }
  .net-copy .sub { margin-top: 16px; color: var(--ink-soft); }
  .more { display: inline-block; margin-top: 22px; font-weight: 600; color: var(--accent-deep); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .2s ease; }
  .more:hover { border-bottom-color: var(--accent); }
  .net-diagram { max-width: 460px; margin: 0 auto; width: 100%; }
  .net-diagram svg { width: 100%; height: auto; display: block; }