:root {
    color-scheme: dark;
    --paper:      #0a0f1c;
    --surface:    #111a2d;
    --surface-2:  #16223a;
    --ink:        #e8edf9;
    --ink-soft:   #b9c4da;
    --muted:      #8b9aba;
    --line:       #22304b;
    --line-strong:#2e3f61;
    --brand:      #6d94ff;
    --brand-2:    #9db8ff;
    --brand-ink:  #c7d6ff;
    --grid:       rgba(109, 148, 255, 0.07);
    --shadow:     0 1px 2px rgba(0,0,0,.4), 0 24px 50px -28px rgba(0,0,0,.7);
  }

  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 96px; -webkit-text-size-adjust: 100%; }
  body {
    margin: 0;
    background-color: var(--paper);
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 68px 68px;
    color: var(--ink);
    font-family: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 17px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  h1, h2, h3 {
    font-family: "Bricolage Grotesque", "IBM Plex Sans", sans-serif;
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.02em;
    text-wrap: balance;
    margin: 0;
  }
  p { margin: 0; }
  a { color: inherit; }
  img { max-width: 100%; display: block; }
  ::selection { background: var(--brand); color: #fff; }

  .wrap {
    width: 100%;
    max-width: 1140px;
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 5vw, 2.75rem);
  }

  .mono {
    font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    background: color-mix(in srgb, var(--paper) 82%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease, background .3s ease;
  }
  header.scrolled { border-bottom-color: var(--line); }
  .nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: 68px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    flex: none;
  }
  .brand-logo { height: 34px; width: auto; display: block; }
  .brand-logo--light { display: none; }
  .brand-logo--dark { display: block; }
  .nav-links {
    display: flex;
    gap: 1.6rem;
    margin-left: auto;
  }
  .nav-links a {
    position: relative;
    text-decoration: none;
    color: var(--muted);
    font-size: 0.82rem;
    font-family: "IBM Plex Mono", monospace;
    letter-spacing: 0.04em;
    padding-block: 0.4rem;
    transition: color .2s ease;
  }
  .nav-links a:hover, .nav-links a.active { color: var(--ink); }
  .nav-links a.active::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 2px;
    background: var(--brand);
  }
  .lang {
    display: inline-flex;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    overflow: hidden;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
  }
  .lang button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    padding: 0.32rem 0.66rem;
    cursor: pointer;
    font: inherit;
    transition: background .2s ease, color .2s ease;
  }
  .lang button[aria-pressed="true"] { background: var(--brand); color: #fff; }
  .menu-btn { display: none; }

  .hero {
    position: relative;
    padding-top: clamp(8rem, 18vh, 12rem);
    padding-bottom: clamp(4rem, 12vh, 8rem);
    overflow: hidden;
  }
  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(60% 55% at 78% 8%, color-mix(in srgb, var(--brand) 20%, transparent), transparent 70%),
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 100% 100%, 34px 34px, 34px 34px;
    -webkit-mask-image: radial-gradient(80% 80% at 60% 20%, #000 30%, transparent 100%);
            mask-image: radial-gradient(80% 80% at 60% 20%, #000 30%, transparent 100%);
    pointer-events: none;
  }
  .hero .wrap { position: relative; }
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--brand);
    margin-bottom: 1.6rem;
  }
  .eyebrow::before {
    content: "";
    width: 26px; height: 1px;
    background: currentColor;
  }
  .hero h1 {
    font-size: clamp(2.6rem, 6.4vw, 4.7rem);
    max-width: 15ch;
  }
  .caret {
    display: inline-block;
    width: 0.06em;
    height: 0.9em;
    background: var(--brand);
    margin-left: 0.12em;
    translate: 0 0.06em;
    animation: blink 1.15s steps(1) infinite;
  }
  @keyframes blink { 50% { opacity: 0; } }
  .hero p.lead {
    margin-top: 1.8rem;
    max-width: 54ch;
    font-size: clamp(1.05rem, 1.6vw, 1.28rem);
    color: var(--ink-soft);
  }
  .hero-actions {
    margin-top: 2.4rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    align-items: center;
  }
  .btn {
    --bg: var(--brand); --fg: #fff; --bd: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.4rem;
    border-radius: 7px;
    border: 1px solid var(--bd);
    background: var(--bg);
    color: var(--fg);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  }
  .btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px color-mix(in srgb, var(--brand) 55%, transparent); }
  .btn.ghost { --bg: transparent; --fg: var(--ink); --bd: var(--line-strong); }
  .btn.ghost:hover { --bd: var(--brand); box-shadow: none; }
  .btn .arrow { transition: transform .2s ease; }
  .btn:hover .arrow { transform: translateX(3px); }
  .hero-meta {
    margin-top: 2.6rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 0.6rem;
  }
  .hero-meta .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--brand); }

  section { position: relative; }
  .band {
    padding-block: clamp(4rem, 10vw, 7.5rem);
    border-top: 1px solid var(--line);
  }
  .sec-head {
    display: grid;
    gap: 1rem;
    margin-bottom: 3rem;
    max-width: 62ch;
  }
  .sec-head .mono { color: var(--brand); }
  .sec-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
  .sec-head p { color: var(--muted); }

  .intro-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }
  .intro-grid h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
  .pillars { display: grid; gap: 1.4rem; }
  .pillar {
    display: grid;
    gap: 0.2rem;
    padding-left: 1.1rem;
    border-left: 2px solid var(--brand);
  }
  .pillar b { font-family: "Bricolage Grotesque", sans-serif; font-size: 1.02rem; }
  .pillar span { color: var(--muted); font-size: 0.92rem; }

  .cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .card {
    background: var(--surface);
    padding: clamp(1.5rem, 3vw, 2.1rem);
    display: grid;
    gap: 0.6rem;
    align-content: start;
    transition: background .25s ease;
    position: relative;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
  }
  .card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 2px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
  }
  .card:hover { background: var(--surface-2); }
  .card:hover::before { transform: scaleX(1); }
  .card .idx { color: var(--muted); }
  .card h3 { font-size: 1.16rem; }
  .card p { color: var(--muted); font-size: 0.94rem; line-height: 1.62; }

  .steps { display: grid; gap: 0; }
  .step {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: 1.5rem;
    padding-block: 1.6rem;
    border-top: 1px solid var(--line);
    align-items: baseline;
  }
  .step:last-child { border-bottom: 1px solid var(--line); }
  .step .num {
    font-family: "Bricolage Grotesque", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand);
  }
  .step h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }
  .step p { color: var(--muted); font-size: 0.95rem; max-width: 52ch; }

  .contact-block {
    background: linear-gradient(150deg, #1b3aa8, #2f55e6 55%, #4c79ff);
    border-radius: 16px;
    padding: clamp(2.2rem, 6vw, 4rem);
    color: #fff;
    display: grid;
    gap: 2rem;
  }
  .contact-block h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); color: #fff; max-width: 18ch; }
  .contact-block p.body { color: rgba(255,255,255,.82); max-width: 46ch; }
  .contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    border-top: 1px solid rgba(255,255,255,.22);
    padding-top: 2rem;
  }
  .contact-grid .mono { color: rgba(255,255,255,.65); margin-bottom: 0.35rem; display: block; }
  .contact-grid a, .contact-grid span.val { color: #fff; text-decoration: none; font-size: 1.02rem; }
  .contact-grid a:hover { text-decoration: underline; }
  .contact-cta {
    justify-self: start;
    --bg: #ffffff; --fg: #16308f; --bd: #ffffff;
  }
  .contact-cta:hover { box-shadow: 0 14px 30px -12px rgba(0,0,0,.4); }

  footer {
    border-top: 1px solid var(--line);
    padding-block: 3rem 3.5rem;
  }
  .foot {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem 2rem;
    align-items: center;
    justify-content: space-between;
  }
  .foot .brand-logo { height: 30px; }
  .foot-tag { color: var(--muted); font-size: 0.9rem; margin-top: 0.5rem; }
  .foot-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
  .foot-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-family: "IBM Plex Mono", monospace;
    letter-spacing: 0.03em;
  }
  .foot-links a:hover { color: var(--ink); }
  .foot-compliance { margin-top: 2rem; text-align: right; }
  .foot-compliance img { margin: 0 0 0 auto; max-width: 520px; width: 100%; height: auto; }
  .copy { margin-top: 2rem; color: var(--muted); font-size: 0.82rem; }

  .reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
  .stagger.in > * { animation: rise .55s ease backwards; }
  .stagger.in > *:nth-child(2) { animation-delay: .06s; }
  .stagger.in > *:nth-child(3) { animation-delay: .12s; }
  .stagger.in > *:nth-child(4) { animation-delay: .18s; }
  .stagger.in > *:nth-child(5) { animation-delay: .24s; }
  .stagger.in > *:nth-child(6) { animation-delay: .3s; }
  @keyframes rise { from { opacity: 0; transform: translateY(14px); } }

  @media (max-width: 860px) {
    .nav-links { display: none; }
    .nav-links.open {
      display: grid;
      position: absolute;
      top: 68px; left: 0; right: 0;
      background: var(--paper);
      border-bottom: 1px solid var(--line);
      padding: 1rem clamp(1.25rem, 5vw, 2.75rem) 1.4rem;
      gap: 0.9rem;
    }
    .nav-links.open a { font-size: 0.95rem; }
    .menu-btn {
      display: inline-flex;
      margin-left: auto;
      appearance: none;
      background: transparent;
      border: 1px solid var(--line-strong);
      border-radius: 7px;
      color: var(--ink);
      width: 38px; height: 34px;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }
    .intro-grid { grid-template-columns: 1fr; }
    .cards { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .step { grid-template-columns: 3rem 1fr; gap: 1rem; }
  }

  @media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
    .caret { animation: none; }
  }

  :focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 3px; }