/* FocusedAI — sbexchange.html page styles. Design tokens live in theme.css */

    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      background: var(--c-bg); color: var(--c-text); font-family: var(--font-body);
      font-size: 16px; line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased;
    }
    ::selection { background: rgba(37,99,235,0.18); color: var(--c-ink); }
    ::-webkit-scrollbar { width: 9px; } ::-webkit-scrollbar-track { background: #dde5ef; }
    ::-webkit-scrollbar-thumb { background: var(--c-blue); border-radius: 6px; border: 2px solid #dde5ef; }
    a { color: inherit; }

    /* blueprint grid + glow */
    .grid-overlay {
      position: fixed; inset: 0; z-index: 0; pointer-events: none;
      background-image: linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
      background-size: 48px 48px; mask-image: radial-gradient(ellipse at 50% 0%, #000 35%, transparent 85%);
    }
    .bg-orb { position: fixed; border-radius: 50%; filter: blur(100px); pointer-events: none; z-index: 0; }
    .bg-orb-1 { width: 560px; height: 560px; background: radial-gradient(circle, rgba(14,165,233,0.30), transparent 70%); top: -200px; left: -160px; }
    .bg-orb-2 { width: 520px; height: 520px; background: radial-gradient(circle, rgba(79,70,229,0.22), transparent 70%); top: 38%; right: -200px; }

    .container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
    .skip-link { position: absolute; top: -100px; left: 16px; background: var(--c-blue); color: #fff; font-weight: 700; font-size: 14px; padding: 12px 20px; border-radius: 0 0 8px 8px; z-index: 9999; text-decoration: none; transition: top .2s; }
    .skip-link:focus { top: 0; }

    /* ── NAV ── */
    nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 14px 0; transition: background .4s, box-shadow .4s, border-color .4s; border-bottom: 1px solid transparent; }
    nav.scrolled { background: rgba(255,255,255,0.82); backdrop-filter: blur(18px) saturate(1.4); border-bottom-color: var(--c-border); box-shadow: var(--shadow-sm); }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
    .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
    .brand-mark { height: 38px; width: auto; flex-shrink: 0; object-fit: contain; display: block; }
    .brand-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; letter-spacing: -0.3px; color: var(--c-ink); }
    .brand-name b { background: var(--grad-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .brand-name span { color: var(--c-muted); font-weight: 500; }
    .nav-links { display: flex; gap: 30px; list-style: none; align-items: center; }
    .nav-links a { color: var(--c-muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: color .2s; }
    .nav-links a:hover { color: var(--c-blue); }
    .nav-cta { background: var(--grad-blue); color: #fff !important; padding: 10px 20px; border-radius: 8px; font-size: 13px !important; font-weight: 600 !important; box-shadow: var(--shadow-md); transition: transform .2s, box-shadow .2s; min-height: 40px; display: inline-flex; align-items: center; }
    .nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; z-index: 200; }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--c-blue); border-radius: 2px; transition: transform .3s, opacity .3s; }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .mobile-menu { position: fixed; inset: 0; z-index: 150; background: rgba(231,237,244,0.97); backdrop-filter: blur(18px); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px; opacity: 0; pointer-events: none; transition: opacity .3s; }
    .mobile-menu.open { opacity: 1; pointer-events: all; }
    .mobile-menu a { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--c-ink); text-decoration: none; }
    .mobile-menu a:hover { color: var(--c-blue); }

    /* ── HERO ── */
    .hero { padding: 140px 0 56px; }
    .hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
    .breadcrumb { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 18px; }
    .breadcrumb a { color: var(--c-blue); text-decoration: none; }
    .breadcrumb .sep { opacity: .5; margin: 0 8px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(37,99,235,0.08); border: 1px solid rgba(37,99,235,0.2); border-radius: 100px; padding: 7px 15px; font-family: var(--font-mono); font-size: 11px; color: var(--c-blue); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 22px; }
    .eyebrow .dot { width: 6px; height: 6px; background: var(--c-cyan); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.6)} }
    .hero h1 { font-family: var(--font-display); font-size: clamp(34px, 5vw, 60px); font-weight: 700; line-height: 1.04; letter-spacing: -1.2px; margin-bottom: 20px; color: var(--c-ink); }
    .hero h1 .grad { background: var(--grad-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .hero p.lede { font-size: clamp(16px, 1.7vw, 19px); color: var(--c-muted); max-width: 540px; line-height: 1.7; margin-bottom: 34px; }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

    .btn-primary { display: inline-flex; align-items: center; gap: 9px; background: var(--grad-blue); color: #fff; font-weight: 600; font-size: 15px; padding: 14px 26px; border-radius: 10px; text-decoration: none; box-shadow: var(--shadow-md); transition: transform .2s, box-shadow .2s; min-height: 48px; }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
    .btn-ghost { display: inline-flex; align-items: center; gap: 8px; color: var(--c-ink); font-weight: 600; font-size: 15px; text-decoration: none; padding: 14px 20px; border-radius: 10px; border: 1.5px solid var(--c-border); background: rgba(255,255,255,0.6); transition: border-color .2s, color .2s, background .2s; min-height: 48px; }
    .btn-ghost:hover { border-color: var(--c-blue); color: var(--c-blue); background: #fff; }
    .btn-ghost .arr { transition: transform .2s; } .btn-ghost:hover .arr { transform: translateX(3px); }

    /* hero visual — digital workspace card stack */
    .hero-visual { position: relative; height: 380px; }
    .glass {
      background: rgba(255,255,255,0.72); backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.9); border-radius: 18px; box-shadow: var(--shadow-md);
    }
    .hv-main { position: absolute; inset: 20px; border-radius: 22px; overflow: hidden; background:
      linear-gradient(135deg, rgba(14,165,233,0.12), rgba(79,70,229,0.12)), #fff; box-shadow: var(--shadow-lg); border: 1px solid #fff; }
    .hv-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(37,99,235,0.10) 1px, transparent 1px), linear-gradient(90deg, rgba(37,99,235,0.10) 1px, transparent 1px); background-size: 30px 30px; }
    .hv-chip { position: absolute; padding: 12px 14px; border-radius: 12px; font-size: 12px; }
    .hv-chip .k { font-family: var(--font-mono); font-size: 10px; color: var(--c-muted); text-transform: uppercase; letter-spacing: .08em; }
    .hv-chip .v { font-family: var(--font-display); font-size: 18px; font-weight: 700; color: var(--c-blue); margin-top: 2px; }
    .hv-1 { top: 36px; left: 36px; animation: float1 5s ease-in-out infinite; }
    .hv-2 { top: 40px; right: 34px; animation: float2 6s ease-in-out infinite; }
    .hv-3 { bottom: 40px; left: 44px; animation: float2 5.5s ease-in-out infinite; }
    .hv-4 { bottom: 44px; right: 38px; animation: float1 4.6s ease-in-out infinite; }
    .hv-core { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 92px; height: 92px; border-radius: 24px; display: flex; align-items: center; justify-content: center; font-size: 40px; background: var(--grad-blue); box-shadow: 0 18px 40px -12px rgba(37,99,235,.5); }
    .hv-ring { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); border: 1.5px dashed rgba(37,99,235,0.35); border-radius: 50%; }
    .hvr-1 { width: 180px; height: 180px; animation: spin 26s linear infinite; }
    .hvr-2 { width: 250px; height: 250px; animation: spin 38s linear infinite reverse; }
    @keyframes spin { to { transform: translate(-50%,-50%) rotate(360deg); } }
    @keyframes float1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
    @keyframes float2 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(9px)} }

    /* ── STATS STRIP ── */
    .stats { padding: 8px 0 64px; }
    .stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
    .stat { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 16px; padding: 26px 22px; text-align: center; box-shadow: var(--shadow-sm); }
    .stat .n { font-family: var(--font-display); font-size: 34px; font-weight: 700; letter-spacing: -1px; background: var(--grad-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
    .stat .l { font-size: 13px; color: var(--c-muted); margin-top: 8px; }

    /* ── SECTION HEAD ── */
    .section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
    .section-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--c-blue); margin-bottom: 14px; }
    .section-tag::before, .section-tag::after { content:''; height:1px; width:24px; background: var(--c-blue); opacity:.4; }
    .section-title { font-family: var(--font-display); font-size: clamp(24px, 3vw, 40px); font-weight: 700; letter-spacing: -.4px; line-height: 1.13; margin-bottom: 14px; color: var(--c-ink); }
    .section-title .grad { background: var(--grad-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .section-sub { font-size: 15.5px; color: var(--c-muted); line-height: 1.7; }

    /* ── OFFERINGS ── */
    .offer { padding: 40px 0 30px; }
    .offer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px,1fr)); gap: 20px; }
    .offer-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 18px; padding: 28px; box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s, border-color .3s; position: relative; overflow: hidden; }
    .offer-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background: var(--grad-blue); transform: scaleX(0); transform-origin: left; transition: transform .35s; }
    .offer-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.3); }
    .offer-card:hover::before { transform: scaleX(1); }
    .offer-ic { width: 56px; height: 56px; border-radius: 15px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; background: linear-gradient(135deg, rgba(14,165,233,0.12), rgba(79,70,229,0.12)); border: 1px solid var(--c-border); }
    .offer-ic svg { width: 30px; height: 30px; }
    .offer-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; color: var(--c-ink); margin-bottom: 9px; }
    .offer-card p { font-size: 14px; color: var(--c-muted); line-height: 1.65; }

    /* ── MEMBERSHIP TIERS ── */
    .tiers { padding: 64px 0; }
    .tier-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; align-items: start; }
    .tier { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 20px; padding: 32px; box-shadow: var(--shadow-sm); position: relative; transition: transform .3s, box-shadow .3s; }
    .tier:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
    .tier.popular { border: 2px solid transparent; background:
      linear-gradient(#fff,#fff) padding-box,
      var(--grad-blue) border-box; box-shadow: var(--shadow-md); }
    .pop-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--grad-blue); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 14px; border-radius: 100px; box-shadow: var(--shadow-md); }
    .tier-name { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--c-blue); margin-bottom: 12px; }
    .tier-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 6px; }
    .tier-price .amt { font-family: var(--font-display); font-size: 42px; font-weight: 700; letter-spacing: -1.5px; color: var(--c-ink); }
    .tier-price .cur { font-size: 20px; color: var(--c-muted); font-weight: 600; }
    .tier-price .per { font-size: 13px; color: var(--c-muted); }
    .tier-desc { font-size: 13.5px; color: var(--c-muted); margin-bottom: 22px; line-height: 1.6; min-height: 38px; }
    .tier-feats { list-style: none; display: flex; flex-direction: column; gap: 11px; margin-bottom: 26px; }
    .tier-feats li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--c-text); }
    .tier-feats .ck { color: var(--c-blue); flex-shrink: 0; margin-top: 2px; font-weight: 700; }
    .tier-btn { display: block; text-align: center; padding: 13px; border-radius: 10px; font-weight: 700; font-size: 14px; text-decoration: none; transition: all .2s; }
    .tier-btn.solid { background: var(--grad-blue); color: #fff; box-shadow: var(--shadow-md); }
    .tier-btn.solid:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
    .tier-btn.outline { border: 1.5px solid var(--c-border); color: var(--c-ink); }
    .tier-btn.outline:hover { border-color: var(--c-blue); color: var(--c-blue); }

    /* ── WHY ── */
    .why { padding: 24px 0 64px; }
    .why-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
    .why-card { background: var(--c-surface2); border: 1px solid var(--c-border2); border-radius: 16px; padding: 26px; }
    .why-ic { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; background: #fff; border: 1px solid var(--c-border); }
    .why-ic svg { width: 24px; height: 24px; }
    .why-card h3 { font-family: var(--font-display); font-size: 16px; font-weight: 700; color: var(--c-ink); margin-bottom: 9px; }
    .why-card p { font-size: 14px; color: var(--c-muted); line-height: 1.65; }

    /* ── FAQ ── */
    .faq { padding: 24px 0 64px; }
    .faq-grid { max-width: 800px; margin: 44px auto 0; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); transition: border-color .2s; }
    .faq-item:hover, .faq-item:focus-within { border-color: rgba(37,99,235,0.3); }
    .faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; background: none; border: none; color: var(--c-ink); font-family: var(--font-body); font-size: 16px; font-weight: 600; text-align: left; cursor: pointer; min-height: 44px; transition: color .2s; }
    .faq-q:hover { color: var(--c-blue); }
    .faq-ic { font-size: 22px; color: var(--c-blue); flex-shrink: 0; font-weight: 300; transition: transform .3s; }
    .faq-item.open .faq-ic { transform: rotate(45deg); }
    .faq-answer { padding: 0 24px 20px; color: var(--c-muted); font-size: 15px; line-height: 1.75; }
    .faq-answer[hidden] { display: none; }
    .faq-answer strong { color: var(--c-ink); }

    /* ── CTA ── */
    .cta { padding: 20px 0 80px; }
    .cta-inner { position: relative; background: var(--grad-blue); border-radius: 24px; padding: 60px 44px; text-align: center; overflow: hidden; box-shadow: var(--shadow-lg); }
    .cta-inner::after { content:''; position:absolute; inset:0; background-image: linear-gradient(rgba(255,255,255,0.10) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.10) 1px, transparent 1px); background-size: 34px 34px; mask-image: radial-gradient(ellipse at 70% 20%, #000, transparent 70%); pointer-events:none; }
    .cta h2 { font-family: var(--font-display); font-size: clamp(24px, 3vw, 38px); font-weight: 700; letter-spacing: -.4px; color: #fff; margin-bottom: 14px; position: relative; z-index:1; }
    .cta p { color: rgba(255,255,255,0.9); max-width: 480px; margin: 0 auto 30px; position: relative; z-index:1; }
    .cta .btn-white { display:inline-flex; align-items:center; gap:9px; background:#fff; color:var(--c-blue); font-weight:700; font-size:15px; padding:14px 28px; border-radius:10px; text-decoration:none; box-shadow: 0 12px 30px rgba(0,0,0,0.18); transition: transform .2s; position:relative; z-index:1; min-height:48px; }
    .cta .btn-white:hover { transform: translateY(-2px); }
    .cta-contact { margin-top: 20px; font-size: 14px; color: rgba(255,255,255,0.85); position: relative; z-index:1; }
    .cta-contact a { color:#fff; text-decoration: underline; }

    /* ── FOOTER ── */
    footer { padding: 50px 0 30px; border-top: 1px solid var(--c-border); background: var(--c-surface2); }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
    .footer-tagline { font-size: 14px; color: var(--c-muted); line-height: 1.7; margin: 14px 0 0; max-width: 300px; }
    .footer-col h4 { font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 16px; color: var(--c-ink); }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
    .footer-col a { color: var(--c-muted); text-decoration: none; font-size: 14px; transition: color .2s; }
    .footer-col a:hover { color: var(--c-blue); }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 26px; border-top: 1px solid var(--c-border2); }
    .footer-copy, .footer-legal a { font-size: 13px; color: var(--c-muted); font-family: var(--font-mono); }
    .footer-legal { display: flex; gap: 20px; } .footer-legal a { text-decoration: none; } .footer-legal a:hover { color: var(--c-blue); }

    .reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .rd1{transition-delay:.08s}.rd2{transition-delay:.16s}.rd3{transition-delay:.24s}

    /* ── RESPONSIVE ── */
    @media (max-width: 920px) {
      .nav-links { display: none; } .hamburger { display: flex; }
      .hero-grid { grid-template-columns: 1fr; gap: 40px; }
      .hero-visual { height: 320px; order: -1; max-width: 460px; }
      .stats-grid { grid-template-columns: repeat(2,1fr); }
      .tier-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
      .why-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 480px) {
      .container { padding: 0 16px; }
      .hero { padding: 116px 0 40px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .btn-primary, .btn-ghost { justify-content: center; }
      .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
      .stat .n { font-size: 28px; }
      .offer, .tiers, .why, .faq { padding-top: 48px; padding-bottom: 48px; }
      .cta-inner { padding: 44px 22px; }
      .footer-grid { grid-template-columns: 1fr; gap: 26px; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
      .hero-visual { height: 280px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    }
  
