:root {
      --ink: #05090f;
      --midnight: #071426;
      --midnight-2: #0b1f36;
      --navy: #102b47;
      --panel: rgba(255,255,255,0.055);
      --line: rgba(255,255,255,0.12);
      --cream: #f5efe3;
      --text: #f5f1e8;
      --muted: #b9c4cf;
      --gold: #d3a75b;
      --gold-soft: #f0cb83;
      --copper: #a8622b;
      --cyan: #67c6d6;
      --radius: 28px;
      --max: 1200px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text);
      font-family: Inter, Arial, Helvetica, sans-serif;
      background:
        radial-gradient(circle at 76% 6%, rgba(103,198,214,0.10), transparent 24%),
        linear-gradient(180deg, var(--ink) 0%, var(--midnight) 48%, #07101d 100%);
      line-height: 1.6;
    }

    a { color: inherit; text-decoration: none; }
    .wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
    .section { padding: 110px 0; }
    .band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.025); }

    .eyebrow { color: var(--gold-soft); text-transform: uppercase; letter-spacing: 0.18em; font-size: 12px; font-weight: 700; margin-bottom: 16px; }
    h1, h2, h3 { margin: 0 0 16px; line-height: 1.06; }
    h2 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.03em; }
    h3 { font-size: 1.25rem; }
    p { margin: 0 0 16px; color: var(--muted); }

    .nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: rgba(5,9,15,0.78); border-bottom: 1px solid var(--line); }
    .nav-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 14px; flex-shrink: 0; }
    .brand-mark { width: 54px; height: 54px; }
    .brand-copy { display: grid; gap: 2px; }
    .brand-name { color: var(--cream); font-size: 1.15rem; letter-spacing: 0.18em; text-transform: uppercase; line-height: 1.05; white-space: nowrap; }
    .brand-sub { color: var(--muted); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; line-height: 1.05; }
    .nav-links { display: flex; gap: 28px; color: #d7dde4; font-size: 0.96rem; align-items: center; }

    .btn { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 24px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; transition: transform 0.18s ease; }
    .btn:hover { transform: translateY(-1px); }
    .btn-primary { color: #111; background: linear-gradient(135deg, var(--gold-soft), var(--gold)); box-shadow: 0 12px 28px rgba(228,185,106,0.22); }
    .btn-secondary { color: var(--cream); border-color: rgba(240,203,131,0.42); background: rgba(255,255,255,0.025); }

    /* Integrated banner */
    .hero { padding: 42px 0 56px; }
    .banner-card {
      min-height: 735px;
      border-radius: 32px;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,0.16);
      background:
        radial-gradient(circle at 76% 18%, rgba(103,198,214,.20), transparent 24%),
        radial-gradient(circle at 12% 10%, rgba(211,167,91,.15), transparent 28%),
        linear-gradient(135deg, #0a1725 0%, #081a2e 46%, #061223 100%);
      box-shadow: 0 28px 90px rgba(0,0,0,0.44);
    }
    .banner-inner { min-height: 735px; display: grid; grid-template-columns: 0.92fr 1.08fr; align-items: center; gap: 58px; padding: 72px; }
    .hero-eyebrow { color: var(--gold-soft); text-transform: uppercase; letter-spacing: 0.19em; font-size: 13px; font-weight: 700; margin-bottom: 28px; }
    .hero h1 { margin: 0 0 28px; color: var(--cream); font-size: clamp(4rem, 6.4vw, 6.4rem); line-height: 1.02; letter-spacing: -0.055em; font-weight: 800; max-width: 660px; }
    .hero-copy p { max-width: 590px; color: var(--muted); font-size: 1.25rem; line-height: 1.5; margin: 0 0 34px; font-weight: 500; }
    .cta-row { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }

    .visual { position: relative; min-height: 420px; border-radius: 30px; border: 1px solid rgba(255,255,255,0.16); background: radial-gradient(circle at 48% 30%, rgba(103,198,214,0.15), transparent 45%), linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.025)); box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 24px 70px rgba(0,0,0,0.22); overflow: hidden; }
    .visual svg.graph { position: absolute; inset: 34px 44px 36px 44px; width: calc(100% - 88px); height: calc(100% - 70px); }
    .label-pill { position: absolute; z-index: 3; display: inline-flex; align-items: center; justify-content: center; min-height: 36px; padding: 0 16px; border-radius: 999px; color: rgba(245,239,227,0.78); background: rgba(5,13,25,0.72); border: 1px solid rgba(255,255,255,0.10); backdrop-filter: blur(10px); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }
    .workflows { left: 54px; top: 34px; }
    .decisions { right: 34px; top: 38px; }
    .data { left: 44%; bottom: 74px; }
    .node { position: absolute; z-index: 4; width: 15px; height: 15px; border-radius: 999px; background: var(--gold-soft); box-shadow: 0 0 0 14px rgba(240,203,131,0.10), 0 0 30px rgba(240,203,131,0.28); }
    .node.cyan { background: var(--cyan); box-shadow: 0 0 0 14px rgba(103,198,214,0.10), 0 0 30px rgba(103,198,214,0.28); }
    .n1 { left: 90px; top: 98px; }
    .n2 { left: 220px; top: 176px; }
    .n3 { left: 118px; bottom: 122px; }
    .n4 { right: 88px; top: 105px; }
    .n5 { right: 128px; bottom: 110px; background: rgba(240,203,131,0.62); }
    .stack { position: absolute; z-index: 5; right: 86px; bottom: 66px; width: 180px; height: 112px; }
    .layer { position: absolute; right: 0; height: 28px; border-radius: 999px; transform: skewX(-14deg); box-shadow: 0 10px 26px rgba(0,0,0,0.18); }
    .layer.one { top: 0; width: 160px; background: linear-gradient(135deg, #f0cb83, #dba955); }
    .layer.two { top: 44px; width: 138px; background: linear-gradient(135deg, #d19448, #b56f31); }
    .layer.three { top: 82px; width: 96px; background: linear-gradient(135deg, #b86f31, #8f4e22); }


    /* Concept 1 — Layered operating map */
    .concept1-card {
      background:
        radial-gradient(circle at 76% 18%, rgba(103,198,214,.20), transparent 24%),
        radial-gradient(circle at 12% 10%, rgba(211,167,91,.15), transparent 28%),
        linear-gradient(135deg, #0a1725 0%, #081a2e 46%, #061223 100%);
    }

    .concept1-visual {
      background:
        radial-gradient(circle at 54% 48%, rgba(111,199,216,.10), transparent 44%),
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
    }

    .concept1-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size: 46px 46px;
      opacity: .5;
      mask-image: radial-gradient(circle at 55% 50%, black, transparent 78%);
      pointer-events: none;
    }

    .layer-band {
      position: absolute;
      left: 9%;
      right: 9%;
      height: 46px;
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,.10);
      background: rgba(16,43,71,.55);
      z-index: 2;
    }

    .band-a { top: 54px; }
    .band-b {
      top: 142px;
      border-color: rgba(211,167,91,.25);
      background: rgba(211,167,91,.10);
    }
    .band-c { bottom: 54px; }

    .band-label {
      position: absolute;
      left: 24px;
      top: 13px;
      color: var(--muted);
      font-size: 12px;
      letter-spacing: .12em;
      text-transform: uppercase;
      font-weight: 700;
    }

    .line-v {
      position: absolute;
      width: 2px;
      height: 240px;
      top: 46px;
      background: linear-gradient(transparent, var(--cyan), transparent);
      opacity: .55;
      z-index: 3;
    }

    .line-v.one { left: 30%; }
    .line-v.two { right: 28%; }

    .concept1-stack {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -45%);
      width: 170px;
      height: 130px;
      z-index: 4;
    }

    .concept1-stack .stack-l1,
    .concept1-stack .stack-l2,
    .concept1-stack .stack-l3 {
      position: absolute;
      left: 50%;
      transform: translateX(-50%) skewX(-16deg);
      border-radius: 14px;
      box-shadow: 0 14px 28px rgba(0,0,0,.22);
    }

    .concept1-stack .stack-l1 {
      top: 0;
      width: 170px;
      height: 36px;
      background: linear-gradient(135deg, var(--gold-soft), var(--gold));
    }

    .concept1-stack .stack-l2 {
      top: 49px;
      width: 135px;
      height: 30px;
      background: linear-gradient(135deg, var(--gold), var(--copper));
    }

    .concept1-stack .stack-l3 {
      top: 91px;
      width: 96px;
      height: 24px;
      background: linear-gradient(135deg, var(--copper), #7f4a22);
    }

    .trust-strip { padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .trust-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px 24px; color: #d7dde4; font-size: 0.95rem; }

    .card { background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.025)); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: 0 20px 55px rgba(0,0,0,0.25); }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .statement { font-size: clamp(1.7rem, 3vw, 2.5rem); color: var(--cream); line-height: 1.18; letter-spacing: -0.02em; margin-bottom: 18px; }
    .capability-title { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
    .capability-badge { width: 34px; height: 34px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; background: rgba(211,167,91,0.1); border: 1px solid rgba(211,167,91,0.22); color: var(--gold-soft); font-size: 0.85rem; font-weight: 700; flex: 0 0 34px; }
    .quote-card { padding: 34px; border-radius: 28px; border: 1px solid rgba(240,210,162,0.16); background: linear-gradient(135deg, rgba(211,167,91,0.10), rgba(255,255,255,0.02)); box-shadow: 0 20px 55px rgba(0,0,0,0.25); }
    .quote-card p:first-child { color: var(--cream); font-size: 1.18rem; line-height: 1.45; }
    .list-clean { display: grid; gap: 14px; margin-top: 18px; }
    .list-item { display: grid; grid-template-columns: 16px 1fr; gap: 12px; align-items: start; }
    .dot { width: 10px; height: 10px; border-radius: 999px; margin-top: 8px; background: linear-gradient(135deg, var(--gold), var(--gold-soft)); box-shadow: 0 0 0 5px rgba(211,167,91,0.08); }
    .cta-panel { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; align-items: center; }
    .footer { padding: 34px 0 56px; border-top: 1px solid var(--line); color: var(--muted); }
    .footer-inner { display: flex; justify-content: space-between; gap: 20px; align-items: center; flex-wrap: wrap; }

    @media (max-width: 1080px) { .banner-inner, .grid-3, .grid-2, .trust-grid, .cta-panel { grid-template-columns: 1fr 1fr; } }
    @media (max-width: 900px) { .banner-inner { grid-template-columns: 1fr; padding: 42px; } .hero h1 { font-size: clamp(3.1rem, 11vw, 5rem); } .visual { min-height: 360px; } }
    @media (max-width: 760px) { .wrap { width: min(var(--max), calc(100% - 28px)); } .nav-links { display: none; } .section { padding: 72px 0; } .grid-3, .grid-2, .trust-grid, .cta-panel { grid-template-columns: 1fr; } .banner-card, .banner-inner { min-height: auto; } }
  
    .architecture-diagram { margin-top: 40px; }
    .architecture-grid {
      display: grid;
      grid-template-columns: 1fr auto 1fr auto 1fr;
      gap: 16px;
      align-items: stretch;
      margin-top: 26px;
    }
    .architecture-node {
      padding: 24px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,0.08);
      background: rgba(255,255,255,0.025);
      min-height: 160px;
    }
    .architecture-node.focus {
      border-color: rgba(211,167,91,0.24);
      background: rgba(211,167,91,0.075);
    }
    .node-label {
      color: var(--gold-soft);
      font-size: 0.78rem;
      text-transform: uppercase;
      letter-spacing: 0.14em;
      margin-bottom: 12px;
    }
    .node-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 8px;
      color: var(--muted);
      font-size: 0.95rem;
    }
    .arrow {
      align-self: center;
      color: var(--gold-soft);
      opacity: 0.8;
    }