
    :root {
      --bbsct-bg: #fefdf8;
      --bbsct-bg-2: #fdf6ec;
      --bbsct-panel: rgba(255,255,255,.86);
      --bbsct-ink: #0f1b2d;
      --bbsct-muted: #5f7288;
      --bbsct-line: rgba(15, 23, 42, .09);
      --bbsct-blue: #2563eb;
      --bbsct-blue-2: #3b82f6;
      --bbsct-cyan: #0891b2;
      --bbsct-cyan-2: #06b6d4;
      --bbsct-teal: #0d9488;
      --bbsct-amber: #d97706;
      --bbsct-amber-2: #f59e0b;
      --bbsct-rose: #e11d48;
      --bbsct-green: #16a34a;
      --bbsct-green-2: #22c55e;
      --bbsct-purple: #7c3aed;
      --bbsct-indigo: #4f46e5;
      --bbsct-navy: #0f2a4c;
      --bbsct-shadow: 0 26px 70px rgba(30, 64, 124, .14);
      --bbsct-shadow-soft: 0 16px 40px rgba(37, 99, 235, .12);
      --bbsct-radius-lg: 30px;
      --bbsct-radius-md: 20px;
      --bbsct-sidebar: 286px;
      --bbsct-sidebar-collapsed: 78px;
      --bbsct-topbar: 74px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-height: 100vh;
      font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--bbsct-ink);
      background:
        radial-gradient(circle at 12% 4%, rgba(37,99,235,.12), transparent 26%),
        radial-gradient(circle at 88% 8%, rgba(6,182,212,.12), transparent 26%),
        radial-gradient(circle at 70% 92%, rgba(245,158,11,.10), transparent 30%),
        var(--bbsct-bg);
      /* clip (not hidden) keeps horizontal overflow contained WITHOUT turning <body>
         into a scroll container, which would break position: sticky on the top bar. */
      overflow-x: clip;
    }

    a { color: inherit; }
    button, textarea, input { font: inherit; }

    /* === App frame === */
    .bbsct-app {
      min-height: 100vh;
      display: flex;
      width: 100%;
    }

    .bbsct-sidebar {
      width: var(--bbsct-sidebar);
      min-height: 100vh;
      position: sticky;
      top: 0;
      align-self: flex-start;
      z-index: 50;
      display: flex;
      flex-direction: column;
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(22px);
      border-right: 1px solid var(--bbsct-line);
      box-shadow: 14px 0 38px rgba(30, 64, 124, .06);
      transition: width .24s ease, transform .24s ease;
    }
    .bbsct-sidebar.is-collapsed { width: var(--bbsct-sidebar-collapsed); }

    .bbsct-sidebar-head {
      min-height: var(--bbsct-topbar);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 16px;
      border-bottom: 1px solid var(--bbsct-line);
    }

    .bbsct-brand { display: flex; align-items: center; gap: 11px; min-width: 0; text-decoration: none; }

    .bbsct-mark {
      width: 40px; height: 40px; flex: 0 0 40px;
      border-radius: 13px;
      display: grid; place-items: center;
      color: #fff;
      font-family: "Space Grotesk", Inter, sans-serif;
      font-size: 1.15rem; font-weight: 800; letter-spacing: -.06em;
      background: linear-gradient(135deg, var(--bbsct-blue), var(--bbsct-cyan-2) 60%, var(--bbsct-teal));
      box-shadow: 0 12px 26px rgba(8, 145, 178, .30);
    }

    .bbsct-brand-copy { overflow: hidden; white-space: nowrap; }
    .bbsct-brand-copy strong { display: block; font-size: .98rem; letter-spacing: -.02em; }
    .bbsct-brand-copy span { display: block; font-size: .64rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--bbsct-cyan); margin-top: 2px; }

    .bbsct-sidebar.is-collapsed .bbsct-brand-copy,
    .bbsct-sidebar.is-collapsed .bbsct-nav span,
    .bbsct-sidebar.is-collapsed .bbsct-sidebar-foot { display: none; }

    .bbsct-collapse {
      width: 36px; height: 36px;
      border: 1px solid rgba(37,99,235,.14);
      border-radius: 11px; cursor: pointer;
      background: rgba(255,255,255,.85);
      color: var(--bbsct-blue);
      transition: .18s ease;
    }
    .bbsct-collapse:hover { transform: translateY(-1px); box-shadow: var(--bbsct-shadow-soft); }

    .bbsct-nav { padding: 16px 12px; overflow-y: auto; }
    .bbsct-menu-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
    .bbsct-menu-list li { margin: 0; padding: 0; }

    .bbsct-nav a {
      display: flex; align-items: center; gap: 12px;
      min-height: 46px; padding: 11px 13px;
      border-radius: 14px; text-decoration: none;
      color: #37506e; font-size: .92rem; font-weight: 700;
      border: 1px solid transparent;
      transition: background .18s ease, border-color .18s ease, transform .18s ease, color .18s ease;
      white-space: nowrap;
    }
    .bbsct-nav a:hover, .bbsct-nav a.is-active {
      background: linear-gradient(135deg, rgba(37,99,235,.10), rgba(6,182,212,.10));
      border-color: rgba(37,99,235,.14);
      color: var(--bbsct-navy);
      transform: translateX(2px);
    }
    .bbsct-nav i {
      width: 26px; height: 26px; flex: 0 0 26px;
      border-radius: 9px; display: grid; place-items: center;
      font-style: normal; font-size: .86rem;
      background: linear-gradient(135deg, #e8f1ff, #e0f7fb);
      color: var(--bbsct-blue);
    }
    .bbsct-sidebar.is-collapsed .bbsct-nav a { justify-content: center; padding-inline: 10px; }

    .bbsct-sidebar-foot {
      margin-top: auto; padding: 16px;
      border-top: 1px solid var(--bbsct-line);
      color: var(--bbsct-muted); font-size: .76rem; line-height: 1.45;
    }
    .bbsct-sidebar-foot strong { color: var(--bbsct-ink); display: block; margin-bottom: 3px; }

    .bbsct-main { flex: 1; min-width: 0; position: relative; }

    /* === Top bar === */
    .bbsct-top {
      height: var(--bbsct-topbar);
      position: sticky; top: 0; z-index: 40;
      display: flex; align-items: center; gap: 18px;
      padding: 12px clamp(18px, 4vw, 42px);
      background: rgba(254, 253, 248, .82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(37,99,235,.10);
    }
    .bbsct-top-logo { display: none; align-items: center; gap: 10px; font-weight: 800; }
    .bbsct-top-logo .bbsct-mark { width: 34px; height: 34px; border-radius: 11px; flex-basis: 34px; font-size: 1rem; }

    .bbsct-compact-chat {
      flex: 1; display: flex; align-items: center; justify-content: flex-end; gap: 10px;
      opacity: 0; transform: translateY(-8px); pointer-events: none;
      transition: opacity .24s ease, transform .24s ease;
    }
    .bbsct-compact-chat.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
    .bbsct-compact-chat input {
      width: min(560px, 100%); min-width: 200px; height: 42px;
      border-radius: 999px; border: 1px solid rgba(37,99,235,.18);
      background: rgba(255,255,255,.85); padding: 0 16px; outline: none;
      box-shadow: 0 8px 24px rgba(37,99,235,.08); color: var(--bbsct-ink);
    }
    .bbsct-compact-chat input:focus { border-color: rgba(37,99,235,.45); box-shadow: 0 0 0 4px rgba(37,99,235,.10); }

    .bbsct-pill-btn, .bbsct-top-link, .bbsct-chat-send {
      height: 42px; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
      padding: 0 18px; border-radius: 999px;
      border: 1px solid rgba(37,99,235,.14); background: rgba(255,255,255,.85);
      color: var(--bbsct-navy); text-decoration: none; font-weight: 800; font-size: .88rem;
      cursor: pointer; transition: .18s ease; white-space: nowrap;
    }
    .bbsct-chat-send, .bbsct-pill-btn.primary {
      color: #fff; border-color: transparent;
      background: linear-gradient(105deg, var(--bbsct-blue), var(--bbsct-cyan));
      box-shadow: 0 14px 30px rgba(8,145,178,.26);
    }
    .bbsct-pill-btn.ghost { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.34); }
    .bbsct-pill-btn:hover, .bbsct-top-link:hover, .bbsct-chat-send:hover { transform: translateY(-1px); filter: brightness(1.03); }
    .bbsct-top-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

    .bbsct-content { padding: 0 clamp(18px, 4vw, 48px) 58px; }
    .bbsct-section { scroll-margin-top: 96px; }

    /* === Hero === */
    .bbsct-hero { position: relative; min-height: calc(100vh - var(--bbsct-topbar)); display: grid; align-items: center; padding: clamp(28px, 5vw, 64px) 0; overflow: hidden; }
    .bbsct-blob { position: absolute; width: 42vw; height: 42vw; border-radius: 62% 38% 72% 28% / 44% 56% 44% 56%; filter: blur(64px); z-index: 0; animation: bbsct-float 13s infinite ease-in-out; }
    .bbsct-blob-a { top: -6%; left: -8%; background: radial-gradient(circle, rgba(37,99,235,.20), rgba(6,182,212,.10) 70%); }
    .bbsct-blob-b { bottom: -10%; right: -6%; width: 48vw; height: 48vw; background: radial-gradient(circle, rgba(245,158,11,.16), rgba(225,29,72,.06) 70%); animation-delay: -5s; }
    @keyframes bbsct-float { 0%,100% { transform: translate(0,0) rotate(0deg); } 50% { transform: translate(3%, 4%) rotate(2deg); } }

    .bbsct-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 60px); align-items: center; max-width: 1240px; margin: 0 auto; width: 100%; }

    .bbsct-kicker {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 7px 15px; border-radius: 999px;
      background: linear-gradient(105deg, rgba(37,99,235,.12), rgba(6,182,212,.14));
      color: var(--bbsct-blue); font-weight: 800; font-size: .82rem; letter-spacing: .01em;
      margin-bottom: 20px;
    }
    .bbsct-kicker i { font-style: normal; }
    .bbsct-kicker.amber { background: rgba(245,158,11,.16); color: #b45309; }
    .bbsct-kicker.cyan { background: rgba(6,182,212,.16); color: #0e7490; }
    .bbsct-kicker.rose { background: rgba(225,29,72,.14); color: #be123c; }
    .bbsct-kicker.indigo { background: rgba(79,70,229,.14); color: #4338ca; }
    .bbsct-kicker.on-dark { background: rgba(255,255,255,.14); color: #dbeafe; }

    h1 { margin: 0; font-family: "Space Grotesk", Inter, sans-serif; font-weight: 800; letter-spacing: -.02em; font-size: clamp(2.4rem, 5vw, 4.3rem); line-height: 1.04; color: var(--bbsct-navy); }
    .bbsct-grad { background: linear-gradient(105deg, var(--bbsct-blue), var(--bbsct-cyan-2) 45%, var(--bbsct-amber-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

    .bbsct-lede { color: #44566f; font-size: clamp(1.02rem, 1.4vw, 1.2rem); line-height: 1.6; margin: 22px 0 0; max-width: 36ch; }

    .bbsct-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
    .bbsct-hero-actions.bbsct-center { justify-content: center; }
    .bbsct-hero-actions .bbsct-pill-btn { height: 50px; padding: 0 24px; font-size: .96rem; }

    .bbsct-trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; color: var(--bbsct-muted); font-size: .9rem; font-weight: 600; }
    .bbsct-trust-row span { display: inline-flex; align-items: center; gap: 8px; }
    .bbsct-tick { font-style: normal; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; font-size: .72rem; background: #e8f1ff; color: var(--bbsct-blue); }
    .bbsct-tick.green { background: #e3f7ec; color: var(--bbsct-green); }
    .bbsct-tick.cyan { background: #e0f7fb; color: var(--bbsct-cyan); }
    .bbsct-tick.amber { background: #fdf0db; color: var(--bbsct-amber); }

    /* === Command / preview card === */
    .bbsct-command-card { background: var(--bbsct-panel); backdrop-filter: blur(10px); border: 1px solid rgba(37,99,235,.12); border-radius: var(--bbsct-radius-lg); padding: 18px; box-shadow: var(--bbsct-shadow); }
    .bbsct-score-card { display: grid; gap: 14px; }
    .bbsct-card-head { display: flex; align-items: center; justify-content: space-between; }
    .bbsct-mini-muted { color: #94a3b8; font-size: .76rem; font-weight: 600; }
    .bbsct-queue { display: grid; gap: 9px; }
    .bbsct-queue-item { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 14px; background: #f7faff; border: 1px solid rgba(15,23,42,.05); }
    .bbsct-q-ico { width: 28px; height: 28px; flex: 0 0 28px; border-radius: 9px; display: grid; place-items: center; font-size: .82rem; background: #e8f1ff; color: var(--bbsct-blue); }
    .bbsct-q-ico.amber { background: #fdf0db; color: var(--bbsct-amber); }
    .bbsct-q-ico.rose { background: #fde4ea; color: var(--bbsct-rose); }
    .bbsct-q-name { flex: 1; font-weight: 700; font-size: .9rem; color: #28415e; }
    .bbsct-q-meta { flex: 1; display: grid; }
    .bbsct-q-meta strong { font-size: .9rem; color: #28415e; }
    .bbsct-q-meta span { font-size: .76rem; color: var(--bbsct-muted); }
    .bbsct-card-foot { text-align: center; font-size: .78rem; color: var(--bbsct-muted); border-top: 1px dashed var(--bbsct-line); padding-top: 12px; }

    /* === Status pills === */
    .bbsct-status { display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px; font-size: .72rem; font-weight: 800; background: #eef2f7; color: #51637a; white-space: nowrap; }
    .bbsct-status.blue { background: #e6efff; color: var(--bbsct-blue); }
    .bbsct-status.green { background: #e3f7ec; color: #15803d; }
    .bbsct-status.warn { background: #fdf0db; color: #b45309; }

    /* === Bands / sections === */
    .bbsct-band { max-width: 1240px; margin: 0 auto; padding: clamp(40px, 6vw, 84px) clamp(20px, 4vw, 56px); border-radius: var(--bbsct-radius-lg); }
    .bbsct-band.soft { background: rgba(255,255,255,.66); border: 1px solid var(--bbsct-line); box-shadow: var(--bbsct-shadow-soft); }
    .bbsct-band.bbsct-tinted { background: linear-gradient(120deg, rgba(37,99,235,.07), rgba(6,182,212,.07) 55%, rgba(245,158,11,.06)); border: 1px solid rgba(37,99,235,.10); }
    .bbsct-band.dark { background: linear-gradient(135deg, #0b2342, #103a63 60%, #0e7490); color: #eaf2ff; }

    .bbsct-section-head { max-width: 760px; margin-bottom: 8px; }
    .bbsct-section-head h2 { margin: 6px 0 0; font-family: "Space Grotesk", Inter, sans-serif; font-size: clamp(1.8rem, 3.4vw, 2.9rem); letter-spacing: -.02em; color: var(--bbsct-navy); }
    .bbsct-band.dark .bbsct-section-head h2, .bbsct-band.dark h2 { color: #fff; }
    .bbsct-section-copy { color: #4a5c73; font-size: 1.04rem; line-height: 1.62; margin-top: 14px; }
    .bbsct-band.dark .bbsct-section-copy { color: #cfe0f5; }

    /* === Cards grid === */
    .bbsct-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
    .bbsct-cards-2 { grid-template-columns: repeat(2, 1fr); }
    .bbsct-cards-3 { grid-template-columns: repeat(3, 1fr); }
    .bbsct-card {
      background: #fff; border: 1px solid var(--bbsct-line); border-radius: var(--bbsct-radius-md);
      padding: 22px; box-shadow: 0 8px 22px rgba(30,64,124,.05);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .bbsct-card:hover { transform: translateY(-4px); box-shadow: 0 22px 40px -16px rgba(30,64,124,.20); }
    .bbsct-card h3 { margin: 14px 0 6px; font-size: 1.12rem; color: var(--bbsct-navy); }
    .bbsct-card p { margin: 0; color: var(--bbsct-muted); font-size: .92rem; line-height: 1.55; }

    .bbsct-card.border-blue { border-left: 4px solid var(--bbsct-blue); }
    .bbsct-card.border-cyan { border-left: 4px solid var(--bbsct-cyan-2); }
    .bbsct-card.border-amber { border-left: 4px solid var(--bbsct-amber-2); }
    .bbsct-card.border-rose { border-left: 4px solid var(--bbsct-rose); }
    .bbsct-card.border-green { border-left: 4px solid var(--bbsct-green-2); }
    .bbsct-card.border-purple { border-left: 4px solid var(--bbsct-purple); }
    .bbsct-card.border-indigo { border-left: 4px solid var(--bbsct-indigo); }
    .bbsct-card.top-blue { border-top: 4px solid var(--bbsct-blue); }
    .bbsct-card.top-cyan { border-top: 4px solid var(--bbsct-cyan-2); }
    .bbsct-card.top-amber { border-top: 4px solid var(--bbsct-amber-2); }
    .bbsct-card.top-rose { border-top: 4px solid var(--bbsct-rose); }
    .bbsct-card.top-green { border-top: 4px solid var(--bbsct-green-2); }
    .bbsct-card.top-purple { border-top: 4px solid var(--bbsct-purple); }

    .bbsct-icon { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; font-size: 1.2rem; font-style: normal; background: #e8f1ff; color: var(--bbsct-blue); }
    .bbsct-icon.blue { background: #e8f1ff; color: var(--bbsct-blue); }
    .bbsct-icon.cyan { background: #e0f7fb; color: var(--bbsct-cyan); }
    .bbsct-icon.amber { background: #fdf0db; color: var(--bbsct-amber); }
    .bbsct-icon.rose { background: #fde4ea; color: var(--bbsct-rose); }
    .bbsct-icon.green { background: #e3f7ec; color: var(--bbsct-green); }
    .bbsct-icon.purple { background: #efe7fd; color: var(--bbsct-purple); }
    .bbsct-icon.indigo { background: #e7e6fd; color: var(--bbsct-indigo); }

    .bbsct-mod-head { display: flex; align-items: center; gap: 12px; }
    .bbsct-mod-head .bbsct-icon { width: 38px; height: 38px; font-size: 1rem; }
    .bbsct-mod-head strong { font-size: 1.06rem; color: var(--bbsct-navy); }
    .bbsct-card .bbsct-mod-head + p { margin-top: 10px; }

    /* === Pipeline tiles === */
    .bbsct-pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
    .bbsct-pipe { display: grid; gap: 4px; text-align: center; padding: 18px 12px; border-radius: 16px; background: rgba(255,255,255,.7); border: 1px solid var(--bbsct-line); }
    .bbsct-pipe i { font-style: normal; font-size: 1.3rem; }
    .bbsct-pipe strong { font-size: .98rem; color: var(--bbsct-navy); }
    .bbsct-pipe span { font-size: .76rem; color: var(--bbsct-muted); }
    .bbsct-pipe.blue { box-shadow: inset 0 -3px 0 var(--bbsct-blue); }
    .bbsct-pipe.rose { box-shadow: inset 0 -3px 0 var(--bbsct-rose); }
    .bbsct-pipe.amber { box-shadow: inset 0 -3px 0 var(--bbsct-amber-2); }
    .bbsct-pipe.green { box-shadow: inset 0 -3px 0 var(--bbsct-green-2); }

    /* === Flow steps === */
    .bbsct-flow { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 28px; }
    .bbsct-flow-step { display: flex; gap: 14px; align-items: flex-start; background: #fff; border: 1px solid var(--bbsct-line); border-left-width: 4px; border-radius: 16px; padding: 16px 18px; box-shadow: 0 6px 18px rgba(30,64,124,.05); }
    .bbsct-step-no { width: 30px; height: 30px; flex: 0 0 30px; border-radius: 9px; display: grid; place-items: center; font-weight: 800; font-family: "Space Grotesk", sans-serif; background: linear-gradient(135deg, var(--bbsct-blue), var(--bbsct-cyan)); color: #fff; }
    .bbsct-flow-step strong { color: var(--bbsct-navy); }
    .bbsct-flow-step p { margin: 4px 0 0; color: var(--bbsct-muted); font-size: .9rem; line-height: 1.5; }
    .border-blue { border-left-color: var(--bbsct-blue); }
    .border-cyan { border-left-color: var(--bbsct-cyan-2); }
    .border-amber { border-left-color: var(--bbsct-amber-2); }
    .border-rose { border-left-color: var(--bbsct-rose); }
    .border-green { border-left-color: var(--bbsct-green-2); }
    .border-indigo { border-left-color: var(--bbsct-indigo); }
    .border-purple { border-left-color: var(--bbsct-purple); }

    /* === Meeting ladder === */
    .bbsct-ladder { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 28px; }
    .bbsct-rung { display: flex; flex-direction: column; gap: 3px; background: #fff; border: 1px solid var(--bbsct-line); border-left-width: 4px; border-radius: 14px; padding: 14px 16px; }
    .bbsct-rung b { font-family: "Space Grotesk", monospace; font-size: .98rem; color: var(--bbsct-navy); }
    .bbsct-rung span { font-size: .88rem; color: var(--bbsct-muted); }
    .bbsct-rung-wide { grid-column: 1 / -1; }

    /* === Mini console === */
    .bbsct-mini-console { margin-top: 26px; background: #fff; border: 1px solid var(--bbsct-line); border-radius: var(--bbsct-radius-md); overflow: hidden; box-shadow: var(--bbsct-shadow-soft); }
    .bbsct-console-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--bbsct-line); background: linear-gradient(105deg, rgba(37,99,235,.06), rgba(6,182,212,.06)); }
    .bbsct-console-head strong { color: var(--bbsct-navy); }
    .bbsct-console-body { padding: 16px 18px; display: grid; gap: 10px; }
    .bbsct-console-row { display: flex; align-items: center; gap: 12px; padding: 11px 12px; border-radius: 12px; background: #f7faff; border: 1px solid rgba(15,23,42,.05); }

    /* === MVP === */
    .bbsct-mvp-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
    .bbsct-mvp-head h2 { margin: 0; font-family: "Space Grotesk", Inter, sans-serif; font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--bbsct-navy); }

    /* === Why / different === */
    .bbsct-cta { max-width: 880px; margin: 0 auto; text-align: center; }
    .bbsct-cta h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); }
    .bbsct-why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 30px 0; text-align: left; }
    .bbsct-why-item { display: flex; gap: 12px; align-items: flex-start; }
    .bbsct-why-item strong { color: #fff; display: block; }
    .bbsct-why-item p { margin: 4px 0 0; color: #c4d7ef; font-size: .9rem; line-height: 1.5; }
    .bbsct-quote { margin: 0 0 26px; padding: 22px 26px; border-radius: var(--bbsct-radius-md); background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); font-style: italic; font-size: 1.05rem; line-height: 1.6; color: #eaf2ff; }

    /* === Chat zone === */
    .bbsct-chat-zone { max-width: 1000px; margin: 0 auto; padding: clamp(26px, 4vw, 46px); background: linear-gradient(135deg, rgba(37,99,235,.06), rgba(6,182,212,.07)); border: 1px solid rgba(37,99,235,.14); border-radius: var(--bbsct-radius-lg); box-shadow: var(--bbsct-shadow-soft); }
    .bbsct-chat-zone-label { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 14px; }
    .bbsct-chat-zone-label span:first-child { font-family: "Space Grotesk", sans-serif; font-weight: 700; color: var(--bbsct-navy); font-size: 1.1rem; }
    .bbsct-chat-zone-label span:last-child { color: var(--bbsct-muted); font-size: .82rem; }
    .bbsct-chat-box { display: grid; grid-template-columns: 1fr auto; gap: 12px; background: #fff; border: 1px solid rgba(37,99,235,.16); border-radius: var(--bbsct-radius-md); padding: 14px; box-shadow: 0 10px 30px rgba(37,99,235,.08); }
    .bbsct-chat-box textarea { resize: none; min-height: 58px; border: 0; outline: none; padding: 8px 10px; color: var(--bbsct-ink); background: transparent; font-size: 1rem; }
    .bbsct-chat-box .bbsct-chat-send { align-self: end; height: 46px; }
    .bbsct-chat-tips { margin-top: 16px; }
    .bbsct-chat-tips button { border: 1px solid rgba(37,99,235,.18); background: rgba(255,255,255,.8); color: var(--bbsct-blue); border-radius: 999px; padding: 8px 15px; font-size: .82rem; font-weight: 700; cursor: pointer; transition: .16s ease; }
    .bbsct-chat-tips button:hover { background: rgba(37,99,235,.10); transform: translateY(-1px); }

    /* === Answer overlay === */
    .bbsct-answer-overlay { position: fixed; inset: 0; z-index: 80; display: none; align-items: center; justify-content: center; padding: 22px; background: rgba(12, 30, 56, .42); backdrop-filter: blur(6px); }
    .bbsct-answer-overlay.is-open { display: flex; }
    .bbsct-answer-card { width: min(620px, 100%); background: #fff; border-radius: var(--bbsct-radius-lg); overflow: hidden; box-shadow: var(--bbsct-shadow); }
    .bbsct-answer-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--bbsct-line); background: linear-gradient(105deg, rgba(37,99,235,.07), rgba(6,182,212,.07)); }
    .bbsct-answer-head strong { font-family: "Space Grotesk", Inter, sans-serif; color: var(--bbsct-navy); font-size: 1.12rem; }
    .bbsct-answer-close { width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--bbsct-line); background: #fff; cursor: pointer; font-size: 1.1rem; color: var(--bbsct-muted); }
    .bbsct-answer-body { padding: 22px; color: #3b526f; line-height: 1.7; max-height: 64vh; overflow: auto; }
    .bbsct-answer-body strong { color: var(--bbsct-navy); }
    .bbsct-answer-body p { margin: 0 0 14px; }

    /* === Footer === */
    .bbsct-footer { max-width: 1240px; margin: 30px auto 0; padding: 30px clamp(20px, 4vw, 56px); display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center; border-top: 1px solid var(--bbsct-line); color: var(--bbsct-muted); font-size: .88rem; }
    .bbsct-footer strong { color: var(--bbsct-ink); }
    .bbsct-footer a { text-decoration: none; font-weight: 600; }
    .bbsct-footer a:hover { color: var(--bbsct-blue); }
    .bbsct-foot-copy { width: 100%; color: #9aa7b6; font-size: .8rem; }

    /* === Sub-page shell === */
    .bbsct-page-shell { max-width: 1100px; margin: 0 auto clamp(28px, 5vw, 58px); }
    .bbsct-page-hero { margin-bottom: clamp(20px, 4vw, 34px); }
    .bbsct-page-hero h1 { font-size: clamp(2rem, 4vw, 3.4rem); }
    .bbsct-wp-content { background: rgba(255,255,255,.78); border: 1px solid var(--bbsct-line); border-radius: var(--bbsct-radius-lg); box-shadow: var(--bbsct-shadow-soft); padding: clamp(24px, 4vw, 48px); }

    /* === Image placeholder === */
    .bbsct-image-placeholder { min-height: 240px; border-radius: var(--bbsct-radius-md); border: 1px dashed rgba(37,99,235,.3); background: linear-gradient(135deg, rgba(37,99,235,.05), rgba(6,182,212,.05)); display: flex; align-items: flex-end; padding: 18px; }
    .bbsct-image-caption { color: var(--bbsct-muted); font-size: .82rem; }
    .bbsct-image-caption strong { display: block; color: var(--bbsct-navy); }

    /* === Responsive === */
    @media (max-width: 980px) {
      .bbsct-hero-grid { grid-template-columns: 1fr; }
      .bbsct-cards, .bbsct-cards-3 { grid-template-columns: repeat(2, 1fr); }
      .bbsct-pipeline { grid-template-columns: repeat(2, 1fr); }
      .bbsct-why { grid-template-columns: 1fr; }
    }
    @media (max-width: 840px) {
      :root { --bbsct-sidebar: 260px; --bbsct-topbar: auto; }
      .bbsct-app { display: block; }
      .bbsct-sidebar { position: fixed; inset: 0 auto 0 0; transform: translateX(-100%); width: 292px; }
      .bbsct-sidebar.is-open { transform: translateX(0); }
      .bbsct-sidebar.is-collapsed { width: 292px; }
      .bbsct-sidebar.is-collapsed .bbsct-brand-copy,
      .bbsct-sidebar.is-collapsed .bbsct-nav span,
      .bbsct-sidebar.is-collapsed .bbsct-sidebar-foot { display: block; }
      .bbsct-sidebar.is-collapsed .bbsct-nav a { justify-content: flex-start; }
      .bbsct-top { min-height: 74px; flex-wrap: wrap; align-items: center; padding: 12px 16px; }
      .bbsct-top-logo { display: flex; }
      .bbsct-mobile-menu { display: inline-flex !important; }
      .bbsct-compact-chat { flex-basis: 100%; order: 3; justify-content: stretch; }
      .bbsct-compact-chat input { width: 100%; min-width: 0; }
      .bbsct-content { padding-inline: 16px; }
      .bbsct-hero { min-height: auto; padding-top: 32px; }
      .bbsct-chat-box { grid-template-columns: 1fr; }
      .bbsct-chat-box .bbsct-chat-send { justify-self: start; }
      .bbsct-footer { flex-direction: column; align-items: flex-start; }
    }
    @media (max-width: 620px) {
      .bbsct-cards, .bbsct-cards-2, .bbsct-cards-3, .bbsct-flow, .bbsct-ladder, .bbsct-pipeline { grid-template-columns: 1fr; }
      .bbsct-rung-wide { grid-column: auto; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; animation: none !important; }
    }

    /* === WordPress integration === */
    body.bbsct-wp-theme { overflow-x: clip; }
    body.admin-bar .bbsct-sidebar,
    body.admin-bar .bbsct-top { top: 32px; }
    @media (max-width: 782px) {
      body.admin-bar .bbsct-sidebar,
      body.admin-bar .bbsct-top { top: 46px; }
    }
    .bbsct-sub-page .bbsct-top { position: sticky; top: 0; }
    .bbsct-sub-page .bbsct-compact-chat { opacity: 1; transform: translateY(0); pointer-events: auto; }
    .bbsct-sub-page .bbsct-content { padding-top: clamp(22px, 4vw, 44px); }
    .screen-reader-text { border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; }

    /* Block editor preview: neutralize sticky/100vh so the canvas renders naturally. */
    .editor-styles-wrapper .bbsct-app,
    .editor-styles-wrapper .bbsct-main,
    .editor-styles-wrapper .bbsct-content { min-height: auto; }
    .editor-styles-wrapper .bbsct-sidebar,
    .editor-styles-wrapper .bbsct-top,
    .editor-styles-wrapper .bbsct-answer-overlay { position: static; }


    /* === BridgeBrain Scout visual identity (radar-cool; Signal Orange accent) === */
    :root {
      --bbsct-bg: #f4fafc;
      --bbsct-bg-2: #e9f5f8;
      --bbsct-panel: rgba(255,255,255,.90);
      --bbsct-ink: #0b1220;
      --bbsct-muted: #5a6b7b;
      --bbsct-line: rgba(11, 18, 32, .10);
      --bbsct-blue: #2563eb;
      --bbsct-blue-2: #1d4ed8;
      --bbsct-cyan: #0891b2;
      --bbsct-cyan-2: #06b6d4;
      --bbsct-teal: #0d9488;
      --bbsct-signal: #f97316;
      --bbsct-signal-2: #fb923c;
      --bbsct-amber: #ea580c;
      --bbsct-amber-2: #f97316;
      --bbsct-rose: #e11d48;
      --bbsct-green: #16a34a;
      --bbsct-green-2: #22c55e;
      --bbsct-purple: #7c3aed;
      --bbsct-indigo: #4f46e5;
      --bbsct-yellow: #facc15;
      --bbsct-navy: #0b1220;
      --bbsct-ink-2: #0e1b26;
      --bbsct-shadow: 0 30px 90px rgba(8, 25, 38, .20);
      --bbsct-shadow-soft: 0 18px 50px rgba(8, 145, 178, .14);
    }

    body {
      background:
        radial-gradient(circle at 6% 0%, rgba(6,182,212,.20), transparent 30%),
        radial-gradient(circle at 94% 4%, rgba(37,99,235,.16), transparent 28%),
        radial-gradient(circle at 74% 92%, rgba(249,115,22,.16), transparent 32%),
        linear-gradient(180deg, #f4fafc 0%, #f7fcfd 42%, #ffffff 100%);
    }

    /* Dark radar rail (suite convention). */
    .bbsct-sidebar {
      background:
        radial-gradient(circle at 18% 0%, rgba(6,182,212,.22), transparent 34%),
        radial-gradient(circle at 110% 16%, rgba(249,115,22,.16), transparent 34%),
        linear-gradient(180deg, #071019 0%, #0e1b26 100%);
      border-right-color: rgba(6,182,212,.20);
      box-shadow: 18px 0 46px rgba(8,25,38,.24);
    }
    .bbsct-sidebar-head,
    .bbsct-sidebar-foot { border-color: rgba(255,255,255,.10); }

    .bbsct-mark {
      color: #041318;
      font-size: .9rem;
      letter-spacing: -.04em;
      background: linear-gradient(135deg, var(--bbsct-cyan-2) 0%, var(--bbsct-teal) 55%, var(--bbsct-blue) 100%);
      border: 1px solid rgba(255,255,255,.20);
      box-shadow: 0 16px 34px rgba(6,182,212,.30), inset 0 1px 0 rgba(255,255,255,.38);
    }

    .bbsct-brand-copy strong,
    .bbsct-sidebar-foot strong { color: #eafcff; }
    .bbsct-brand-copy span { color: var(--bbsct-cyan-2); }
    .bbsct-sidebar-foot { color: rgba(226,247,252,.68); }

    .bbsct-collapse {
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.16);
      color: var(--bbsct-cyan-2);
    }

    .bbsct-nav a { color: rgba(226,247,252,.80); border-color: transparent; }
    .bbsct-nav a:hover, .bbsct-nav a.is-active {
      background: linear-gradient(135deg, rgba(6,182,212,.22), rgba(37,99,235,.16));
      border-color: rgba(6,182,212,.24);
      color: #ffffff;
      transform: translateX(3px);
    }
    .bbsct-nav i {
      background: rgba(255,255,255,.10);
      color: var(--bbsct-cyan-2);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
    }

    .bbsct-top {
      background: rgba(244,250,252,.86);
      border-bottom-color: rgba(6,182,212,.18);
      box-shadow: 0 10px 36px rgba(8,25,38,.05);
    }
    .bbsct-top-logo { color: var(--bbsct-ink); text-decoration: none; }

    .bbsct-compact-chat input,
    .bbsct-chat-box {
      border-color: rgba(6,182,212,.22);
      box-shadow: 0 12px 34px rgba(6,182,212,.10);
    }
    .bbsct-compact-chat input:focus,
    .bbsct-chat-box:focus-within {
      border-color: rgba(6,182,212,.50);
      box-shadow: 0 0 0 4px rgba(6,182,212,.11), 0 12px 34px rgba(6,182,212,.12);
    }

    .bbsct-pill-btn, .bbsct-top-link, .bbsct-chat-send {
      border-color: rgba(11,18,32,.12);
      color: var(--bbsct-ink);
    }
    .bbsct-chat-send, .bbsct-pill-btn.primary {
      color: #ffffff;
      background: linear-gradient(105deg, var(--bbsct-cyan), var(--bbsct-cyan-2) 55%, var(--bbsct-teal));
      box-shadow: 0 16px 34px rgba(6,182,212,.30);
    }
    .bbsct-pill-btn.primary.signal {
      background: linear-gradient(105deg, var(--bbsct-signal), var(--bbsct-signal-2));
      box-shadow: 0 16px 34px rgba(249,115,22,.28);
    }
    .bbsct-pill-btn:not(.primary):not(.ghost):hover,
    .bbsct-top-link:hover { border-color: rgba(6,182,212,.30); color: var(--bbsct-cyan); }

    .bbsct-chat-send:disabled,
    .bbsct-chat-disabled,
    .bbsct-chat-tips button:disabled {
      cursor: not-allowed; opacity: .72; filter: saturate(.85); transform: none !important;
    }

    .bbsct-blob-a { background: radial-gradient(circle, rgba(6,182,212,.26), rgba(37,99,235,.08) 70%); }
    .bbsct-blob-b { background: radial-gradient(circle, rgba(249,115,22,.24), rgba(250,204,21,.10) 70%); }

    .bbsct-kicker {
      background: linear-gradient(105deg, rgba(6,182,212,.15), rgba(37,99,235,.11));
      color: #0e7490;
      border: 1px solid rgba(6,182,212,.18);
    }
    .bbsct-kicker.amber { background: rgba(249,115,22,.15); color: #c2410c; }
    .bbsct-kicker.cyan { background: rgba(6,182,212,.16); color: #0e7490; }
    .bbsct-kicker.rose { background: rgba(225,29,72,.14); color: #be123c; }
    .bbsct-kicker.indigo { background: rgba(37,99,235,.12); color: #1d4ed8; }
    .bbsct-kicker.on-dark { background: rgba(255,255,255,.10); color: var(--bbsct-cyan-2); border-color: rgba(255,255,255,.16); }

    .bbsct-grad {
      background: linear-gradient(105deg, var(--bbsct-cyan-2), var(--bbsct-signal) 48%, var(--bbsct-blue) 88%);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }

    .bbsct-lede, .bbsct-section-copy { color: #46586b; }

    .bbsct-command-card {
      background:
        radial-gradient(circle at 0% 0%, rgba(6,182,212,.26), transparent 34%),
        radial-gradient(circle at 110% 0%, rgba(249,115,22,.20), transparent 34%),
        linear-gradient(145deg, #071019, #0e1b26 72%, #12283a);
      border-color: rgba(6,182,212,.22);
      box-shadow: 0 32px 90px rgba(8,25,38,.30);
    }
    .bbsct-score-card { color: #eafcff; }
    .bbsct-command-card .bbsct-mini-muted,
    .bbsct-command-card .bbsct-card-foot { color: rgba(226,247,252,.66); }
    .bbsct-command-card .bbsct-queue-item { background: rgba(255,255,255,.075); border-color: rgba(255,255,255,.10); }
    .bbsct-command-card .bbsct-q-name { color: #eafcff; }

    .bbsct-q-ico, .bbsct-icon.blue { background: rgba(37,99,235,.12); color: var(--bbsct-blue); }
    .bbsct-q-ico.cyan, .bbsct-icon.cyan { background: rgba(6,182,212,.14); color: var(--bbsct-cyan); }
    .bbsct-q-ico.amber, .bbsct-icon.amber { background: rgba(249,115,22,.14); color: var(--bbsct-signal); }
    .bbsct-q-ico.rose, .bbsct-icon.rose { background: rgba(225,29,72,.14); color: var(--bbsct-rose); }

    .bbsct-status.blue { background: rgba(37,99,235,.13); color: var(--bbsct-blue); }
    .bbsct-status.cyan { background: rgba(6,182,212,.15); color: #0e7490; }
    .bbsct-status.warn { background: rgba(249,115,22,.15); color: #c2410c; }
    .bbsct-status.green { background: rgba(22,163,74,.14); color: #15803d; }

    .bbsct-band.soft, .bbsct-wp-content {
      background: rgba(255,255,255,.84);
      border-color: rgba(11,18,32,.09);
      box-shadow: 0 18px 50px rgba(8,25,38,.07);
    }
    .bbsct-band.bbsct-tinted {
      background: linear-gradient(120deg, rgba(6,182,212,.10), rgba(37,99,235,.08) 56%, rgba(249,115,22,.08));
      border-color: rgba(6,182,212,.16);
    }
    .bbsct-band.dark {
      background:
        radial-gradient(circle at 12% 0%, rgba(6,182,212,.22), transparent 34%),
        radial-gradient(circle at 90% 12%, rgba(249,115,22,.18), transparent 34%),
        linear-gradient(135deg, #071019, #0e1b26 58%, #12283a);
      color: #eafcff;
      border: 1px solid rgba(6,182,212,.16);
      box-shadow: 0 34px 90px rgba(8,25,38,.22);
    }
    .bbsct-band.dark .bbsct-section-copy, .bbsct-why-item p { color: rgba(226,247,252,.74); }

    .bbsct-card, .bbsct-flow-step, .bbsct-rung, .bbsct-mini-console {
      border-color: rgba(11,18,32,.09);
      box-shadow: 0 12px 28px rgba(8,25,38,.06);
    }
    .bbsct-card:hover { box-shadow: 0 28px 56px -20px rgba(6,182,212,.30); }

    .bbsct-console-head, .bbsct-answer-head {
      background: linear-gradient(105deg, rgba(6,182,212,.08), rgba(37,99,235,.07));
    }
    .bbsct-console-row, .bbsct-queue-item { background: #f2fbfd; }
    .bbsct-step-no { background: linear-gradient(135deg, var(--bbsct-cyan), var(--bbsct-blue)); }

    .bbsct-chat-zone {
      background:
        radial-gradient(circle at 0% 0%, rgba(6,182,212,.18), transparent 36%),
        radial-gradient(circle at 100% 0%, rgba(249,115,22,.14), transparent 36%),
        linear-gradient(135deg, #0e1b26, #12283a);
      border-color: rgba(6,182,212,.18);
      box-shadow: 0 26px 70px rgba(8,25,38,.18);
    }
    .bbsct-chat-zone-label span:first-child { color: #eafcff; }
    .bbsct-chat-zone-label span:last-child { color: rgba(226,247,252,.66); }
    .bbsct-chat-tips button {
      border-color: rgba(226,247,252,.18);
      background: rgba(255,255,255,.08);
      color: #eafcff;
    }
    .bbsct-chat-tips button:hover { background: rgba(6,182,212,.20); }

    .bbsct-answer-overlay { background: rgba(8,25,38,.62); }
    .bbsct-answer-body { color: #334155; }

    .bbsct-footer { border-top-color: rgba(6,182,212,.16); }
    .bbsct-footer a:hover { color: var(--bbsct-cyan); }

    /* Radar score ring for the preview card. */
    .bbsct-radar {
      width: 54px; height: 54px; border-radius: 50%;
      display: grid; place-items: center;
      font-family: "Space Grotesk", sans-serif; font-weight: 800; color: #eafcff;
      background:
        conic-gradient(var(--bbsct-cyan-2) calc(var(--bbsct-score, 82) * 1%), rgba(255,255,255,.10) 0);
      position: relative;
    }
    .bbsct-radar::after {
      content: ""; position: absolute; inset: 6px; border-radius: 50%;
      background: #0e1b26;
    }
    .bbsct-radar span { position: relative; z-index: 1; font-size: 1rem; }

    /* Keyboard focus (a11y quality floor). */
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--bbsct-cyan); outline-offset: 2px;
    }
    .bbsct-skip-link {
      position: absolute; left: -9999px; top: 8px; z-index: 90;
      background: #fff; padding: 8px 14px; border-radius: 10px;
      box-shadow: var(--bbsct-shadow); color: var(--bbsct-ink); text-decoration: none;
    }
    .bbsct-skip-link:focus { left: 12px; }
