/* VSTN 4ONE Specs Page Styles */

  :root{
    --bg:#0C0C18;          /* deep page background */
    --bg-2:#15152A;        /* elevated dark surface */
    --bg-3:#1B1B30;        /* more elevated surface */
    --bg-warm:#18182A;     /* faint gold-tinted dark bg */
    --ink:#FFFFFF;
    --ink-2:rgba(255,255,255,0.85);
    --ink-3:rgba(255,255,255,0.60);
    --ink-4:rgba(255,255,255,0.35);
    --line:rgba(255,255,255,0.15);
    --line-soft:rgba(255,255,255,0.08);
    --accent:#F59120;
    --accent-strong:#FFBC60;
    --accent-soft:rgba(245,145,32,0.30);
    --accent-dim:rgba(245,145,32,0.14);
    --navy:#0a1530;
    --navy-2:#15295e;
    --link:#FFBC60;

    --display:"Inter Tight","SF Pro Display",-apple-system,BlinkMacSystemFont,"Inter","Manrope",system-ui,sans-serif;
    --body:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
    --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

    --max:1280px;
    --rad:18px;
    --rad-l:28px;
  }

  *{box-sizing:border-box}
  html{scroll-behavior:smooth;background:var(--bg)}
  body{
    margin:0;font-family:var(--body);color:var(--ink);background:var(--bg);
    font-feature-settings:"cv02","cv03","cv04","cv11","ss01";
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
    line-height:1.5;
  }
  a{color:var(--ink);text-decoration:none}
  h1,h2,h3,h4,h5{margin:0;font-family:var(--display);color:var(--ink);letter-spacing:-.02em;font-weight:700}
  h1{font-size:clamp(40px,7.4vw,96px);line-height:1.04;letter-spacing:-.04em;font-weight:800}
  h2{font-size:clamp(32px,5.2vw,64px);line-height:1.06;letter-spacing:-.032em;font-weight:800}
  h3{font-size:clamp(22px,2.5vw,32px);line-height:1.18;letter-spacing:-.02em;font-weight:700}
  h4{font-size:18px;line-height:1.3;letter-spacing:-.005em;font-weight:600}
  p{margin:0 0 12px}
  code{font-family:var(--mono);font-size:.86em;background:var(--bg-2);padding:1px 6px;border-radius:6px;color:var(--ink-2)}

  /* line icon */
  .ic{width:22px;height:22px;flex:none;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;display:inline-block;vertical-align:middle}
  .ic-sm{width:16px;height:16px}

  /* ─── VSTN Main Nav (self-contained) ────────── */
  #specs-header{
    position:fixed;top:0;left:0;width:100%;z-index:1000;
    padding:1rem 2rem;
    background:linear-gradient(135deg,#12121b 0%,#272A33 100%);
    backdrop-filter:blur(10px) saturate(180%);-webkit-backdrop-filter:blur(10px) saturate(180%);
    border-bottom:1px solid rgba(255,255,255,.10);
    box-shadow:0 10px 30px rgba(18,18,27,.15);
    transition:all 300ms cubic-bezier(.4,0,.2,1);
  }
  .specs-nav-container{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
  .specs-logo-wrap{display:flex;align-items:center;gap:.75rem}
  .specs-logo-wrap img{height:40px;width:auto;display:block;cursor:pointer}
  .specs-nav-links{display:flex;align-items:center;gap:2rem;list-style:none;margin:0;padding:0}
  .specs-nav-item{position:relative}
  .specs-nav-link{
    color:#fff;text-decoration:none;font-weight:500;font-size:.95rem;
    padding:.5rem 0;display:flex;align-items:center;gap:.5rem;
    transition:color 150ms cubic-bezier(.4,0,.2,1);position:relative;font-family:var(--body);
  }
  .specs-nav-link::before{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(135deg,#f7931e,#f9a74d);border-radius:9999px;transition:width 300ms cubic-bezier(.4,0,.2,1)}
  .specs-nav-link:hover::before,.specs-nav-active::before{width:100%}
  .specs-nav-link:hover,.specs-nav-active{color:#f9a74d}
  .specs-nav-link i{font-size:10px}
  .specs-dropdown-content{
    position:absolute;top:calc(100% + 10px);left:0;min-width:220px;
    background:#12121b;border:1px solid rgba(255,255,255,.10);
    border-radius:16px;padding:.5rem;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:all 300ms cubic-bezier(.4,0,.2,1);box-shadow:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);z-index:1001;
  }
  .specs-dropdown:hover .specs-dropdown-content{opacity:1;visibility:visible;transform:translateY(0)}
  .specs-dropdown-link{
    display:block;padding:.75rem 1rem;color:#fff;text-decoration:none;
    font-size:.95rem;font-weight:500;border-radius:12px;transition:all 150ms cubic-bezier(.4,0,.2,1);font-family:var(--body);
  }
  .specs-dropdown-link:hover,.specs-dropdown-active{background:rgba(247,147,30,.10);color:#f9a74d;transform:translateX(4px)}
  .specs-cta-btn{
    background:linear-gradient(135deg,#e07c0d,#c96a0a);color:#fff;border:none;
    padding:.75rem 1.75rem;border-radius:9999px;font-weight:600;font-size:.95rem;
    cursor:pointer;transition:all 300ms cubic-bezier(.4,0,.2,1);
    box-shadow:0 4px 15px rgba(247,147,30,.3);font-family:var(--body);
    display:inline-flex;align-items:center;gap:.5rem;position:relative;overflow:hidden;z-index:1;
  }
  .specs-cta-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(247,147,30,.4)}
  .specs-menu-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.2);color:#fff;font-size:1.5rem;cursor:pointer;padding:.5rem;border-radius:8px;transition:all 150ms cubic-bezier(.4,0,.2,1)}
  .specs-menu-toggle:hover{background:rgba(247,147,30,.1)}

  /* ─── Sidebar ────────────────────────────────── */
  .specs-sidebar{
    position:fixed;left:0;top:50%;transform:translateY(-50%);
    z-index:200;
    background:rgba(13,13,25,.90);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border:1px solid rgba(255,255,255,.07);border-left:none;
    border-radius:0 16px 16px 0;
    padding:18px 14px 18px 10px;
    display:flex;flex-direction:column;gap:3px;
    box-shadow:6px 0 32px rgba(0,0,0,.35);
  }
  .sb-link{
    display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:8px;
    color:rgba(255,255,255,.40);font-size:12px;font-weight:500;text-decoration:none;
    transition:all .2s ease;white-space:nowrap;font-family:var(--body);letter-spacing:.01em;
  }
  .sb-link:hover{color:rgba(255,255,255,.80);background:rgba(255,255,255,.05)}
  .sb-link.active{color:#f9a74d;background:rgba(245,145,32,.10)}
  .sb-dot{width:5px;height:5px;border-radius:50%;flex:none;background:rgba(255,255,255,.22);transition:all .2s ease}
  .sb-link.active .sb-dot{background:#f59120;box-shadow:0 0 7px rgba(245,145,32,.6)}
  .sb-line{height:1px;background:rgba(255,255,255,.07);margin:6px 4px}
  .sb-cta{
    display:flex;align-items:center;gap:7px;padding:8px 10px;border-radius:9px;
    background:rgba(245,145,32,.13);border:1px solid rgba(245,145,32,.22);
    color:#f9a74d;font-size:12px;font-weight:600;text-decoration:none;
    transition:all .2s ease;margin-top:3px;font-family:var(--body);
  }
  .sb-cta:hover{background:rgba(245,145,32,.20);border-color:rgba(245,145,32,.38);color:#ffbc60}

  /* ─── Hero two-column layout ─────────────────── */
  .hero-layout{display:flex;align-items:center;justify-content:space-between;gap:52px}
  .hero-content{flex:1;min-width:0}
  .hero-logo-panel{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:14px}
  .hero-logo-panel img{
    width:clamp(140px,16vw,220px);height:auto;
    filter:drop-shadow(0 0 48px rgba(245,145,32,.30));
    animation:logo-float 5s ease-in-out infinite;
  }
  @keyframes logo-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
  .hero-logo-badge{
    font-size:10px;font-weight:700;color:var(--ink-3);letter-spacing:.14em;text-transform:uppercase;
    background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);
    border-radius:6px;padding:5px 12px;text-align:center;
  }

  /* ─── Sections ──────────────────────────────── */
  section{padding:140px 0;position:relative}
  .container{max-width:var(--max);margin:0 auto;padding:0 24px}
  .center{text-align:center;max-width:920px;margin:0 auto}
  .eyebrow{font-family:var(--body);font-size:11px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.20em;margin-bottom:18px;display:inline-flex;align-items:center;gap:10px}
  .eyebrow::before{content:'';width:20px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);border-radius:2px}
  .lead{font-size:clamp(18px,1.9vw,24px);line-height:1.4;color:var(--ink-2);font-weight:400;max-width:780px;margin-left:auto;margin-right:auto;letter-spacing:-.01em}
  .alt-bg{
    background:
      radial-gradient(ellipse 70% 200px at 70% 0%, rgba(245,145,32,0.06) 0%, transparent 70%),
      var(--bg-2);
    position:relative;
  }
  .warm-bg{
    background:
      radial-gradient(ellipse 60% 300px at 30% 100%, rgba(245,145,32,0.08) 0%, transparent 65%),
      var(--bg-warm);
    position:relative;
  }

  /* ─── Hero ──────────────────────────────────── */
  .hero{
    padding:100px 0 80px;
    background:
      radial-gradient(ellipse 900px 600px at 100% 0%, rgba(245,145,32,0.22) 0%, transparent 60%),
      radial-gradient(ellipse 600px 500px at 0% 100%, rgba(120,60,200,0.10) 0%, transparent 60%),
      radial-gradient(ellipse 500px 400px at 50% 50%, rgba(30,60,180,0.06) 0%, transparent 65%),
      linear-gradient(160deg, #0A0A16 0%, #0E0E1C 50%, #0A0A18 100%);
    overflow:hidden;
    position:relative;
  }
  .hero::before{
    content:'';position:absolute;top:-80px;right:-80px;width:520px;height:520px;border-radius:50%;
    background:conic-gradient(from 200deg at 50% 50%, transparent 0deg, rgba(245,145,32,0.10) 60deg, transparent 120deg);
    pointer-events:none;z-index:0;
  }
  .hero::after{
    content:'';position:absolute;bottom:-60px;left:30%;width:380px;height:380px;border-radius:50%;
    border:1px solid rgba(245,145,32,0.06);pointer-events:none;z-index:0;
  }
  .hero .container{position:relative}
  .hero-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:999px;background:rgba(245,145,32,.12);border:1px solid rgba(245,145,32,.25);color:var(--accent-strong);font-size:13px;font-weight:600;margin-bottom:24px}
  .hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .hero-title{margin-bottom:24px;max-width:1120px;position:relative;z-index:1}
  .hero-title em{font-style:italic;background:#f4942b;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
  .hero-sub{font-size:clamp(18px,2vw,26px);line-height:1.4;color:var(--ink-2);max-width:780px;font-weight:400;letter-spacing:-.01em}
  .hero-ctas{display:flex;gap:16px;align-items:center;margin-top:36px;flex-wrap:wrap}
  .btn-primary{background:linear-gradient(135deg,var(--accent),#E8820E);color:#0C0C18 !important;border-radius:999px;padding:0 22px;height:46px;display:inline-flex;align-items:center;font-weight:700;font-size:15px;transition:transform .15s ease, box-shadow .15s ease;box-shadow:0 8px 24px rgba(245,145,32,0.35), inset 0 1px 0 rgba(255,255,255,0.18)}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 32px rgba(245,145,32,0.55), inset 0 1px 0 rgba(255,255,255,0.22)}
  .btn-text{color:var(--link) !important;font-weight:500;font-size:15px;display:inline-flex;align-items:center;gap:6px}
  .btn-text:hover{text-decoration:underline}

  /* hero device mockup */
  .hero-stage{margin-top:80px;display:flex;justify-content:center}
  .stage-frame{
    width:100%;max-width:1080px;
    background:linear-gradient(180deg,#15152A,#10101E);
    border:1px solid var(--line);border-radius:24px;
    padding:14px 14px 0;box-shadow:0 40px 90px rgba(0,0,0,.55),0 8px 24px rgba(0,0,0,.35);
    position:relative;overflow:hidden;
  }
  .stage-bar{display:flex;align-items:center;gap:6px;padding:4px 4px 12px}
  .stage-bar i{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,0.10)}
  .stage-bar i:nth-child(1){background:#ff5f57}
  .stage-bar i:nth-child(2){background:#febc2e}
  .stage-bar i:nth-child(3){background:#28c840}
  .stage-bar .url{margin-left:14px;font-size:11px;color:var(--ink-3);background:#1B1B30;border:1px solid var(--line);border-radius:8px;padding:4px 12px}

  /* hero dashboard mockup */
  .dash{display:grid;grid-template-columns:200px 1fr;background:#10101E;border-radius:14px 14px 0 0;border:1px solid var(--line-soft);border-bottom:none;min-height:480px;overflow:hidden}
  .dash img { width:100%; height:auto; min-width:1050px;}
  .dash-side{background:linear-gradient(180deg,#15152A,#10101E);padding:16px;border-right:1px solid var(--line-soft)}
  .dash-side .group{font-size:10px;color:var(--ink-4);text-transform:uppercase;letter-spacing:.1em;margin:14px 0 8px}
  .dash-side ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}
  .dash-side li{font-size:12px;color:var(--ink-2);padding:6px 8px;border-radius:6px;display:flex;align-items:center;gap:8px}
  .dash-side li.on{background:rgba(245,145,32,0.12);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.3);font-weight:600;border:1px solid rgba(245,145,32,0.25)}
  .dash-side li .ic{width:13px;height:13px;color:var(--ink-3)}
  .dash-side li.on .ic{color:var(--accent-strong)}
  .dash-main{padding:18px 22px}
  .dash-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .dash-h h5{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0}
  .dash-h .pill{font-size:11px;font-weight:600;color:var(--accent);background:rgba(245,145,32,0.14);border:1px solid rgba(245,145,32,0.30);border-radius:999px;padding:3px 10px}
  .kanban{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:10px}
  .col{background:var(--bg-2);border-radius:10px;padding:10px;min-height:280px}
  .col-h{font-size:11px;font-weight:700;color:var(--ink-2);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}
  .col-h span{background:rgba(255,255,255,0.08);border-radius:999px;padding:2px 7px;color:var(--ink-3);font-size:10px}
  .deal{background:#1B1B30;border:1px solid var(--line-soft);border-radius:8px;padding:10px;margin-bottom:8px;box-shadow:0 1px 2px rgba(0,0,0,.35)}
  .deal .t{font-size:12px;font-weight:600;color:var(--ink);margin-bottom:4px;line-height:1.3}
  .deal .m{font-size:10px;color:var(--ink-3);display:flex;justify-content:space-between;align-items:center}
  .deal .m .av{width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:#fff;font-size:9px;font-weight:700;display:inline-grid;place-items:center}

  /* ─── Stats strip ──────────────────────────── */
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:80px;padding:32px 0 0;border-top:1px solid var(--line-soft)}
  .stat{display:flex;flex-direction:column;gap:2px}
  .stat .v{font-family:var(--display);font-size:clamp(28px,3vw,40px);font-weight:700;letter-spacing:-.025em;line-height:1;background:#f4942b;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
  .stat .v span{-webkit-text-fill-color:initial;color:#f4942b;}
  .stat .k{font-size:13px;color:var(--ink-3)}

  /* ─── Pillars ──────────────────────────────── */
  .pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:80px}
  .pillar h3{margin-bottom:12px}
  .pillar p{font-size:17px;line-height:1.55;color:var(--ink-2);margin:0}
  .pillar-num{font-family:var(--display);font-size:13px;font-weight:700;margin-bottom:14px;letter-spacing:.06em;background:linear-gradient(135deg,#FFBC60,#F59120);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;display:inline-block}
  .pillar h3{position:relative;padding-bottom:14px}
  .pillar h3::after{content:'';position:absolute;bottom:0;left:0;width:32px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);border-radius:2px}

  /* ─── Feature carousel ─────────────────────── */
  .carousel-wrap{
    padding:120px 0;
    background:
      radial-gradient(ellipse 80% 400px at 80% 20%, rgba(245,145,32,0.05) 0%, transparent 60%),
      var(--bg-2);
    position:relative;
  }
  .carousel-head{max-width:var(--max);margin:0 auto 60px;padding:0 24px}
  .carousel-head .row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
  .carousel-head h2{max-width:780px}
  .carousel-nav{display:flex;gap:8px}
  .carousel-nav button{
    width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#1B1B30;color:var(--ink);
    box-shadow:0 1px 2px rgba(0,0,0,.4);cursor:pointer;font-size:18px;
    display:inline-grid;place-items:center;transition:transform .15s ease, background .15s ease;
  }
  .carousel-nav button:hover{background:var(--accent);color:#0C0C18}
  .rail{
    display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:8px 24px 24px;scroll-padding-inline-start:24px;
    scrollbar-width:none;
  }
  .rail::-webkit-scrollbar{display:none}
  .rail::before,.rail::after{content:"";flex:0 0 calc((100vw - var(--max))/2);max-width:48px}
  .rail-card{
    flex:0 0 380px;scroll-snap-align:start;
    background:linear-gradient(180deg,#181830,#13132A);
    border-radius:24px;border:1px solid var(--line);
    overflow:hidden;display:flex;flex-direction:column;
    box-shadow:0 1px 2px rgba(0,0,0,.4);
    transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .rail-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,0,0,.55),0 0 0 1px rgba(245,145,32,0.25);border-color:rgba(245,145,32,0.30)}
  .rail-art{aspect-ratio:4/3;background:radial-gradient(ellipse 100% 80% at 50% 0%, rgba(245,145,32,0.08) 0%, transparent 60%), linear-gradient(180deg,#1B1B30,#13132A);position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft);display:grid;place-items:center;padding:18px}
  .rail-art > svg{width:100%;height:auto;display:block}
  .rail-body{padding:24px 26px 28px}
  .rail-tag{display:inline-block;font-size:10px;font-weight:700;color:var(--accent);letter-spacing:.18em;text-transform:uppercase;margin-bottom:10px;padding:4px 10px;background:rgba(245,145,32,0.10);border:1px solid rgba(245,145,32,0.25);border-radius:999px}
  .rail-card h3{font-size:22px;line-height:1.2;margin-bottom:8px}
  .rail-card p{font-size:14px;color:var(--ink-3);line-height:1.5;margin:0}

  /* ─── Story panel (alternating big sections) ─ */
  .story{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
  .story.flip{direction:rtl}
  .story.flip > *{direction:ltr}
  .story-copy h2{margin-bottom:20px}
  .story-copy .lead{margin:0;max-width:none;text-align:left}
  .story-bullets{margin-top:28px;display:flex;flex-direction:column;gap:18px}
  .story-bullets li{list-style:none;display:flex;gap:14px;align-items:flex-start;font-size:16px;color:var(--ink-2);line-height:1.55}
  .story-bullets .b-ic{width:36px;height:36px;border-radius:10px;flex:none;display:inline-grid;place-items:center;background:var(--accent-dim);border:1px solid rgba(245,145,32,.32);color:var(--accent-strong)}
  .story-bullets b{display:block;color:var(--ink);font-weight:600;margin-bottom:2px;font-size:16px}
  .story-art{display:flex;justify-content:center}

  /* device mockup variants */
  .mock{border-radius:22px;background:#15152A;border:1px solid var(--line);overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.5),0 6px 16px rgba(0,0,0,.35);width:100%;max-width:560px}
  .mock-chrome{background:#0a1530;color:#fff;padding:8px 12px;font-size:11px;display:flex;gap:8px;align-items:center}
  .mock-chrome i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.3)}
  .mock-chrome span{margin-left:12px;opacity:.75}
  .mock-app{padding:24px;min-height:380px;background:#10101E}

  /* mobile frame */
  .phone{
    width:280px;background:#3e4045;border-radius:38px;padding:8px;box-shadow:0 30px 60px rgba(0,0,0,.6);
    border:6px solid #3e4045;
  }
  .phone-inner{background:#10101E;border-radius:30px;overflow:hidden;aspect-ratio:9/19}
  .phone-bar{height:32px;display:flex;justify-content:center;align-items:center;background:#15152b;border-bottom: 2px solid #252629;
    border-color: #252629;}
  .phone-bar .pill{width:80px;height:18px;background:#3e4045;border-radius:999px}

  /* ─── M365 surface grid ─────────────────────── */
  .surfaces{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:48px}
  .surface{
    background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:18px;padding:22px;
    display:flex;flex-direction:column;gap:10px;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    position:relative;overflow:hidden;
  }
  .surface::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 100px at 50% 0%, rgba(245,145,32,0.04) 0%, transparent 70%);pointer-events:none}
  .surface > *{position:relative;z-index:1}
  .surface:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.5),0 0 0 1px rgba(245,145,32,0.25);border-color:rgba(245,145,32,.40)}
  .surface .si{width:38px;height:38px;border-radius:10px;display:inline-grid;place-items:center;color:#fff;font-weight:700;font-size:13px;font-family:var(--display)}
  .surface h4{font-size:16px;letter-spacing:-.01em}
  .surface p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.5}

  /* ─── Architecture (single, light) ──────────── */
  .arch-frame{background:linear-gradient(180deg,#41414f,#10101E);border:1px solid var(--line);border-radius:24px;padding:32px;box-shadow:0 12px 30px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,0.04)}
  .arch-frame svg{display:block;width:100%;height:auto}

  /* ─── Trust strip ──────────────────────────── */
  .trust-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:36px}
  .trust-chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--ink-2);background:linear-gradient(135deg,#1B1B30,#15152A);border:1px solid var(--line);border-radius:999px;padding:8px 14px;transition:border-color .15s ease, color .15s ease}
  .trust-chip:hover{border-color:rgba(245,145,32,0.40);color:var(--ink)}
  .trust-chip:hover .ic{color:var(--accent)}
  .trust-chip .ic{color:var(--ink-3);width:15px;height:15px}

  /* ─── Walkthrough ───────────────────────────── */
  .walk{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:48px}
  .step{background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:18px;padding:24px 22px;position:relative;overflow:hidden}
  .step::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.5}
  .step .num{font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.18em;margin-bottom:12px;background:linear-gradient(135deg,#FFBC60,#F59120);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;display:inline-block}
  .step h4{font-size:16px;line-height:1.25;margin-bottom:8px}
  .step p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.5}

  /* ─── Tech stack pills ──────────────────────── */
  .tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:48px}
  .tech-card{background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:14px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
  .tech-card:hover{border-color:rgba(245,145,32,0.30);box-shadow:0 12px 30px rgba(0,0,0,.45);transform:translateY(-2px)}
  .tech-card .dot{box-shadow:0 0 12px rgba(245,145,32,0.55)}
  .tech-card .head{display:flex;align-items:center;gap:10px}
  .tech-card .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
  .tech-card h4{font-size:14px;letter-spacing:.04em;text-transform:uppercase;font-weight:700;color:var(--ink);font-family:var(--body)}
  .tech-card .tags{display:flex;flex-wrap:wrap;gap:6px}
  .tech-card .tags span{font-size:12px;padding:5px 10px;border-radius:999px;background:#30303D;color:var(--ink-2);font-weight:500}
  .tech-card p{font-size:13px;color:var(--ink-3);margin:0;line-height:1.5}

  /* ─── Final CTA ──────────────────────────────── */
  .final-cta{
    padding:160px 0;text-align:center;
    background:
      radial-gradient(ellipse 80% 500px at 50% 100%, rgba(245,145,32,0.18) 0%, transparent 65%),
      radial-gradient(ellipse 60% 400px at 50% 0%, rgba(120,60,200,0.08) 0%, transparent 60%),
      linear-gradient(180deg,#0C0C18 0%, #0E0E1E 100%);
    position:relative;overflow:hidden;
  }
  .final-cta::before{
    content:'';position:absolute;bottom:-150px;left:50%;transform:translateX(-50%);
    width:600px;height:600px;border-radius:50%;
    border:1px solid rgba(245,145,32,0.10);pointer-events:none;
  }
  .final-cta::after{
    content:'';position:absolute;bottom:-250px;left:50%;transform:translateX(-50%);
    width:900px;height:900px;border-radius:50%;
    border:1px solid rgba(245,145,32,0.06);pointer-events:none;
  }
  .final-cta .container{position:relative;z-index:1}
  .final-cta h2{margin-bottom:20px}
  .final-cta .lead{margin-bottom:40px}

  /* ─── Footer ────────────────────────────────── */
  footer{padding:60px 0 56px;border-top:1px solid var(--line);background:#0C0C18}
  .foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;font-size:13px}
  .foot h5{font-size:11px;font-weight:700;color:var(--ink-3);text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px}
  .foot ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
  .foot a{color:var(--ink-2)}
  .foot a:hover{color:var(--ink)}
  .foot-brand img{height:46px;display:block;margin-bottom:6px;width:auto}
  .foot-brand p{font-size:13px;color:var(--ink-3);margin:0;max-width:280px;line-height:1.55}
  .foot-meta{margin-top:48px;padding-top:24px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--ink-4);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

  /* ─── Responsive ──────────────────────────────── */
  @media (max-width:1024px){
    section{padding:96px 0}
    .hero{padding:60px 0 40px}
    .stats{grid-template-columns:repeat(2,1fr);gap:24px}
    .pillars{grid-template-columns:1fr;gap:36px}
    .story{grid-template-columns:1fr;gap:48px}
    .story.flip{direction:ltr}
    .surfaces{grid-template-columns:repeat(2,1fr)}
    .walk{grid-template-columns:repeat(2,1fr)}
    .tech-grid{grid-template-columns:repeat(2,1fr)}
    .foot{grid-template-columns:1fr 1fr}
    .specs-sidebar{display:none}
    .specs-menu-toggle{display:block !important}
    .specs-nav-links{display:none}
    .clarity{grid-template-columns:repeat(2,1fr)}
    .tiers{grid-template-columns:1fr}
    .stages{grid-template-columns:repeat(2,1fr)}
    .import-table{grid-template-columns:1fr}
  }
  @media (max-width:600px){
    .surfaces,.walk,.tech-grid,.clarity,.stages{grid-template-columns:1fr}
    .stats{grid-template-columns:1fr}
    .foot{grid-template-columns:1fr}
    .rail-card{flex:0 0 84vw}
  }

  /* print */
  @media print{
    #specs-header,#specsSidebar{display:none}
    section{padding:40px 0;page-break-inside:avoid}
    .rail{flex-wrap:wrap;overflow:visible}
    .rail-card{flex:0 0 48%}
    .mock,.arch-frame,.surface,.tech-card,.step{box-shadow:none}
  }

  /* ─── Design-clarity strip ──────────────────── */
  .clarity{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:48px}
  .clarity .item{display:flex;flex-direction:column;gap:10px;padding:18px;background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:14px;transition:border-color .2s ease}
  .clarity .item:hover{border-color:rgba(245,145,32,0.30)}
  .clarity .item .ic{color:var(--accent);width:24px;height:24px}
  .clarity h4{font-size:15px;letter-spacing:-.005em;color:var(--ink)}
  .clarity p{font-size:13px;color:var(--ink-3);line-height:1.55;margin:0}

  .pullquote{max-width:880px;margin:64px auto 0;text-align:center;font-family:var(--display);font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.02em;font-weight:600;color:var(--ink)}
  .pullquote::before{content:open-quote;color:var(--accent);font-size:1.4em;line-height:0;margin-right:.1em;vertical-align:-.18em}
  .pullquote::after{content:close-quote;color:var(--accent);font-size:1.4em;line-height:0;margin-left:.05em;vertical-align:-.18em}
  .pull-attr{margin-top:18px;font-family:var(--body);font-size:13px;color:var(--ink-3);font-weight:500}

  /* ─── Tier cards ────────────────────────────── */
  .tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px;align-items:stretch}
  .tier{
    background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:22px;padding:28px 26px;
    display:flex;flex-direction:column;gap:14px;position:relative;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .tier:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.5);border-color:rgba(245,145,32,0.30)}
  .tier.feat{border:1.5px solid var(--accent);box-shadow:0 20px 50px rgba(245,145,32,.25)}
  .tier-tag{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent);letter-spacing:.08em;text-transform:uppercase}
  .tier h3{font-size:24px;line-height:1.15}
  .tier .for{font-size:14px;color:var(--ink-3);margin-top:-4px}
  .tier-divider{height:1px;background:var(--line-soft);margin:4px 0}
  .tier ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
  .tier li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start;line-height:1.5}
  .tier li .ic{color:var(--accent);width:18px;height:18px;flex:none;margin-top:2px}
  .tier .badge{position:absolute;top:-10px;right:24px;background:linear-gradient(135deg,var(--accent),#E8820E);color:#0C0C18;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;letter-spacing:.02em}

  /* ─── Numbered stages (Linear style) ────────── */
  .stages{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:48px}
  .stages .stage{background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:14px;position:relative;overflow:hidden;transition:border-color .2s ease}
  .stages .stage::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.5}
  .stages .stage:hover{border-color:rgba(245,145,32,0.30)}
  .stage-tag{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.06em;background:linear-gradient(135deg,#FFBC60,#F59120);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;display:inline-block}
  .stages .stage h4{font-size:18px;letter-spacing:-.01em;color:var(--ink)}
  .stages .stage p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.55}
  .stages .stage .vis{margin-top:auto;background:#10101E;border:1px solid var(--line-soft);border-radius:10px;padding:14px;min-height:96px;display:flex;flex-direction:column;gap:6px}

  /* ─── AI flow diagram surround ──────────────── */
  .ai-flow{background:linear-gradient(180deg,#181830,#10101E);border:1px solid var(--line);border-radius:22px;padding:36px 32px;box-shadow:0 12px 30px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,0.04)}
  .ai-flow svg{display:block;width:100%;height:auto}

  /* ─── Two-column 'what imports' table ───────── */
  .import-table{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:48px}
  .col-card{background:linear-gradient(180deg,#181830,#13132A);border:1px solid var(--line);border-radius:18px;padding:26px}
  .col-card.yes{border-top:3px solid var(--accent)}
  .col-card.partial{border-top:3px solid var(--ink-3)}
  .col-card h4{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
  .col-card h4 .ic{color:var(--accent);width:20px;height:20px}
  .col-card.partial h4 .ic{color:var(--ink-3)}
  .col-card ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
  .col-card li{font-size:14px;color:var(--ink-2);line-height:1.5;padding-left:22px;position:relative}
  .col-card li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--accent);opacity:.8}
  .col-card.partial li::before{background:var(--ink-3)}



          .ttl{font-family:"Inter Tight";font-size:13px;font-weight:700;fill:#FFFFFF;letter-spacing:-.005em}
          .ttl-w{font-family:"Inter Tight";font-size:13px;font-weight:700;fill:#FFFFFF;letter-spacing:-.005em}
          .sub{font-family:Inter;font-size:10px;fill:#A8A8B4}
          .sub-w{font-family:Inter;font-size:10px;fill:rgba(255,255,255,.78)}
          .tag{font-family:Inter;font-size:10px;font-weight:700;fill:#FFBC60;letter-spacing:.08em;text-transform:uppercase}
          .arr{stroke:#8C8C9A;stroke-width:1.4;fill:none;marker-end:url(#rArr)}
          .arrG{stroke:#F59120;stroke-width:1.6;fill:none;marker-end:url(#rArrG)}
          .b{fill:#15152A;stroke:rgba(255,255,255,0.15);rx:14;ry:14}
          .bAcc{fill:rgba(245,145,32,0.10);stroke:rgba(245,145,32,0.30);rx:14;ry:14}
          .bD{fill:#0a1530;stroke:rgba(245,145,32,0.30);rx:14;ry:14}
        

          .axis{stroke:rgba(255,255,255,0.15);stroke-width:1;fill:none}
          .axL{font-family:Inter;font-size:11px;font-weight:600;fill:#A8A8B4}
          .tag{font-family:"Inter Tight";font-size:13px;font-weight:700;fill:#FFFFFF;letter-spacing:-.005em}
          .sub{font-family:Inter;font-size:11px;fill:#A8A8B4}
          .px{fill:#0F0F1A;stroke:rgba(255,255,255,0.15);rx:10;ry:10}
          .pxA{fill:#15152A;stroke:rgba(245,145,32,0.30);rx:10;ry:10}
          .pod{fill:#FFFFFF;rx:4;ry:4}
          .podA{fill:#F59120;rx:4;ry:4}
        

          .laneL{fill:#15152A;stroke:rgba(255,255,255,0.15);stroke-width:1;rx:18;ry:18}
          .laneT{font-family:"Inter Tight";font-size:13px;font-weight:800;fill:#FFFFFF;letter-spacing:-.005em}
          .laneS{font-family:Inter;font-size:11px;fill:#A8A8B4}
          .box{fill:#0F0F1A;stroke:rgba(255,255,255,0.15);rx:14;ry:14}
          .boxA{fill:rgba(245,145,32,0.10);stroke:rgba(245,145,32,0.30);rx:14;ry:14}
          .boxD{fill:#0a1530;stroke:rgba(245, 145, 32, 0.3);rx:14;ry:14}
          .btitle{font-family:"Inter Tight";font-size:13px;font-weight:700;fill:#FFFFFF;letter-spacing:-.005em}
          .btitleW{font-family:"Inter Tight";font-size:13px;font-weight:700;fill:#ffffff;letter-spacing:-.005em}
          .bsub{font-family:Inter;font-size:10px;fill:#A8A8B4}
          .bsubW{font-family:Inter;font-size:10px;fill:rgba(255,255,255,.7)}
          .flow{stroke:#8C8C9A;stroke-width:1.3;fill:none;marker-end:url(#aArr)}
          .flowAcc{stroke:#F59120;stroke-width:1.5;fill:none;marker-end:url(#aArr)}