:root{
      --container-max-width:1240px;--panel-width:450px;
      --accent-glow:rgba(255,192,8,.32);--accent-dark:#0f0d00;
      --card-bg:rgba(255,255,255,.03);--card-border:rgba(255,255,255,.08);
      --shadow-cold:rgba(8,12,28,.55);
    }
    :root[data-mode="dark"]{
      --bg:#050506;--text:#f5f7fa;--muted:#8a929e;--line:rgba(255,255,255,.09);
      --accent:#ffc008;--accent-soft:rgba(255,192,8,.14);
      --panel-bg:rgba(10,11,14,.98);
    }
    :root[data-mode="light"]{
      --bg:#f0ece4;--text:#111827;--muted:#4b5563;--line:rgba(0,0,0,.08);
      --accent:#d97706;--accent-soft:rgba(217,119,6,.10);
      --accent-glow:rgba(217,119,6,.25);--accent-dark:#fff8e6;
      --panel-bg:rgba(244,240,234,.98);
      --card-bg:rgba(255,252,246,.9);--card-border:rgba(0,0,0,.07);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;transition:background .4s,color .4s}

    body::before{
      content:"";position:fixed;inset:0;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:56px 56px;
      mask-image:radial-gradient(ellipse 80% 80% at 50% 40%,black 25%,transparent 100%);
      pointer-events:none;z-index:0;transition:opacity .4s;
    }
    html[data-mode="light"] body::before{
      background-image:linear-gradient(rgba(0,0,0,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.04) 1px,transparent 1px);
    }
    body::after{
      content:"";position:fixed;inset:0;
      background:radial-gradient(ellipse 55% 45% at 12% 8%,var(--accent-soft),transparent 60%);
      pointer-events:none;z-index:0;transition:background .5s;
    }

    .wrap{width:min(var(--container-max-width),calc(100% - 40px));margin:0 auto;position:relative;z-index:1}

    /* ── NAV ── */
    nav{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(20px);background:rgba(5,5,6,.65);border-bottom:1px solid var(--line);
      animation:slideDown .55s ease both;
    }
    @keyframes slideDown{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}
    .nav-inner{display:flex;align-items:center;justify-content:space-between;padding:15px 0;gap:14px;flex-wrap:wrap}
    .brand{text-decoration:none;color:var(--text);font-family:'Syne',sans-serif;font-weight:800;font-size:17px;display:flex;align-items:center;gap:10px}
    .brand-dot{width:9px;height:9px;border-radius:999px;background:var(--accent);box-shadow:0 0 18px var(--accent);transition:background .5s,box-shadow .5s}
    .nav-links{display:flex;gap:24px;align-items:center}
    .nav-links a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:500;transition:.2s;position:relative}
    .nav-links a::after{content:"";position:absolute;bottom:-3px;left:0;width:0;height:1px;background:var(--accent);transition:width .3s}
    .nav-links a:hover{color:var(--text)}
    .nav-links a:hover::after{width:100%}
    .nav-cta{padding:10px 17px;border-radius:999px;text-decoration:none;color:var(--accent-dark);background:var(--accent);font-weight:700;font-size:14px;box-shadow:0 8px 22px var(--accent-soft);transition:transform .2s,box-shadow .2s,background .5s}
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 30px var(--accent-glow)}
    .mode-toggle{
      width:38px;height:38px;border-radius:999px;
      border:1px solid var(--line);background:rgba(255,255,255,.04);
      color:var(--text);cursor:pointer;font-size:17px;
      display:grid;place-items:center;
      transition:border-color .25s,background .25s,transform .3s;
      flex-shrink:0;
    }
    .mode-toggle:hover{border-color:var(--accent);background:var(--accent-soft);transform:rotate(22deg)}

    /* ── HERO ── */
    .hero{padding:78px 0 56px;position:relative}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
    .hero-text>*{opacity:0;animation:fadeUp .65s ease forwards}
    .hero-text>*:nth-child(1){animation-delay:.12s}
    .hero-text>*:nth-child(2){animation-delay:.26s}
    .hero-text>*:nth-child(3){animation-delay:.40s}
    .hero-text>*:nth-child(4){animation-delay:.54s}
    .hero-text>*:nth-child(5){animation-delay:.68s}
    @keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}

    .eyebrow{display:inline-flex;gap:10px;align-items:center;border:1px solid var(--line);padding:9px 14px;border-radius:999px;color:#c8cdd5;background:rgba(255,255,255,.03);font-size:13px;margin-bottom:22px}
    .pulse{width:8px;height:8px;border-radius:999px;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:blink 2s ease infinite;transition:background .5s,box-shadow .5s}
    @keyframes blink{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}

    h1{font-family:'Syne',sans-serif;font-size:clamp(42px,6.5vw,90px);line-height:1.08;letter-spacing:-.05em;margin-bottom:24px}
    .gold{color:var(--accent);text-shadow:0 0 55px var(--accent-soft);transition:color .5s,text-shadow .5s}
    .hero-positioning{color:var(--accent);font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px;opacity:.9}
    .lead{color:var(--muted);font-size:17px;line-height:1.75;max-width:580px;margin-bottom:28px}
    .actions{display:flex;gap:11px;flex-wrap:wrap;align-items:center;margin-bottom:34px}
    .actions-tight{margin-bottom:0}
    .btn{text-decoration:none;border-radius:14px;padding:13px 21px;font-weight:700;font-size:15px;line-height:1;transition:transform .2s,box-shadow .2s;position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:8px;vertical-align:middle;min-height:44px}
    .btn::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.11);transform:translateX(-100%);transition:transform .35s}
    .btn:hover::before{transform:translateX(0)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      background:var(--accent);color:var(--accent-dark);
      box-shadow:0 8px 24px var(--accent-soft),0 0 0 0 var(--accent-glow);
      transition:transform .2s,box-shadow .2s,background .5s,color .5s;
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 14px 38px var(--accent-glow),0 0 22px var(--accent-soft),0 4px 16px var(--shadow-cold);
    }
    .btn-sm{padding:11px 17px;font-size:13px;min-height:40px}
    .btn-full{width:100%}
    .btn-secondary{border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);transition:.2s}
    .btn-secondary:hover{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.08)}
    .btn-ghost{border:1px solid var(--line);background:transparent;color:var(--muted);transition:.2s}
    .btn-ghost:hover{color:var(--text);border-color:rgba(255,255,255,.18)}
    .chips{display:flex;flex-wrap:wrap;gap:9px}
    .chips span{padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);font-size:13px;transition:border-color .2s,background .2s,color .2s;cursor:default}
    .chips span:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}

    /* ── ORBIT ── */
    .orbit-wrap{position:relative;display:grid;place-items:center;min-height:500px;opacity:0;animation:fadeScale .9s ease .18s forwards}
    @keyframes fadeScale{from{opacity:0;transform:scale(.93)}to{opacity:1;transform:scale(1)}}
    .orbit{width:min(478px,86vw);aspect-ratio:1;position:relative;border-radius:999px;border:1px solid rgba(255,255,255,.06);background:radial-gradient(circle at center,rgba(255,255,255,.06) 0%,rgba(255,255,255,.01) 45%,transparent 65%);box-shadow:0 0 110px rgba(0,0,0,.55)}

    .ring{position:absolute;border-radius:999px;border:1px dashed rgba(255,255,255,.08)}
    .r1{inset:5%;animation:spinCW 30s linear infinite}
    .r2{inset:18%;animation:spinCCW 22s linear infinite}
    .r3{inset:33%;animation:spinCW 15s linear infinite}
    @keyframes spinCW{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
    @keyframes spinCCW{from{transform:rotate(0deg)}to{transform:rotate(-360deg)}}
    .r1::before,.r2::before,.r3::before{content:"";position:absolute;width:6px;height:6px;border-radius:999px;background:var(--accent);box-shadow:0 0 10px var(--accent);top:-3px;left:50%;transform:translateX(-50%);transition:background .5s,box-shadow .5s}
    .r2::before{width:5px;height:5px;top:-2.5px;opacity:.7}
    .r3::before{width:4px;height:4px;top:-2px;opacity:.5}

    .orbit-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}

    .core{position:absolute;inset:41%;border-radius:999px;background:radial-gradient(circle,#fff8cc 0%,var(--accent) 44%,#a06800 100%);box-shadow:0 0 70px var(--accent-glow),0 0 150px var(--accent-soft);animation:corePulse 3.5s ease infinite;cursor:pointer;z-index:2;transition:background .5s}
    @keyframes corePulse{0%,100%{box-shadow:0 0 70px var(--accent-glow),0 0 150px var(--accent-soft);transform:scale(1)}50%{box-shadow:0 0 110px var(--accent-glow),0 0 220px var(--accent-soft);transform:scale(1.09)}}

    /* NODE BASE */
    .node{
      position:absolute;min-width:144px;padding:13px 15px;border-radius:16px;
      border:1px solid rgba(255,255,255,.1);
      background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.04));
      backdrop-filter:blur(16px);box-shadow:0 20px 55px rgba(0,0,0,.4);
      font-size:13px;cursor:pointer;z-index:3;
      transition:border-color .25s,box-shadow .25s,background .25s,transform .25s,min-width .25s,padding .25s;
      overflow:hidden;
    }
    .node strong{display:block;font-size:14px;font-weight:700;margin-bottom:3px;white-space:nowrap}
    .node .node-sub{color:var(--muted);line-height:1.4;font-size:12px;white-space:nowrap}

    /* HOVER EXPAND */
    .node-extra{
      max-height:0;overflow:hidden;
      transition:max-height .35s ease,opacity .3s ease,margin .3s;
      opacity:0;margin-top:0;
    }
    .node:hover .node-extra{max-height:120px;opacity:1;margin-top:8px}
    .node:hover{
      min-width:180px;
      border-color:var(--accent);
      background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.07));
      box-shadow:0 24px 65px rgba(0,0,0,.5),0 0 36px var(--accent-soft);
    }
    .node-extra-item{display:flex;align-items:center;gap:6px;font-size:11px;color:#b0b8c4;margin-bottom:4px}
    .node-extra-item::before{content:"→";color:var(--accent);font-size:10px;flex-shrink:0}

    /* ACTIVE state (clicked / auto-rotating) */
    .node.active{
      border-color:var(--accent) !important;
      box-shadow:0 24px 65px rgba(0,0,0,.5),0 0 48px var(--accent-soft) !important;
      background:linear-gradient(160deg,rgba(255,255,255,.16),rgba(255,255,255,.08)) !important;
    }
    .node.active::after{content:"";position:absolute;top:10px;right:10px;width:6px;height:6px;border-radius:999px;background:var(--accent);box-shadow:0 0 8px var(--accent)}

    /* positions + float */
    .n1{top:5%;left:4%;animation:float1 6s ease-in-out infinite,nodeIn .5s ease .8s forwards;opacity:0}
    .n2{top:8%;right:1%;animation:float2 7s ease-in-out infinite,nodeIn .5s ease 1.0s forwards;opacity:0}
    .n3{bottom:16%;left:-2%;animation:float3 5.5s ease-in-out infinite,nodeIn .5s ease 1.2s forwards;opacity:0}
    .n4{bottom:6%;right:6%;animation:float4 6.5s ease-in-out infinite,nodeIn .5s ease 1.4s forwards;opacity:0}
    .n5{top:50%;right:-4%;transform:translateY(-50%);animation:float2 6.8s ease-in-out infinite,nodeIn .5s ease 1.6s forwards;opacity:0}
    @keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(4px,-8px)}}
    @keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-5px,7px)}}
    @keyframes float3{0%,100%{transform:translate(0,0)}50%{transform:translate(6px,-5px)}}
    @keyframes float4{0%,100%{transform:translate(0,0)}50%{transform:translate(-4px,9px)}}
    @keyframes nodeIn{from{opacity:0;transform:scale(.78)}to{opacity:1;transform:scale(1)}}

    /* ── DETAIL PANEL ── */
    .detail-panel{
      position:fixed;right:0;top:0;bottom:0;width:var(--panel-width);
      background:linear-gradient(160deg,rgba(10,14,26,.93),rgba(5,6,9,.97));
      border-left:1px solid rgba(255,255,255,.07);
      box-shadow:-8px 0 56px rgba(8,12,28,.6);
      backdrop-filter:blur(40px) saturate(160%);
      -webkit-backdrop-filter:blur(40px) saturate(160%);
      z-index:100;
      transform:translateX(100%);
      transition:transform .45s cubic-bezier(.22,1,.36,1);
      overflow-y:auto;overflow-x:hidden;
      padding:28px;
      display:flex;flex-direction:column;gap:20px;
    }
    .detail-panel.open{transform:translateX(0)}
    .panel-close{
      align-self:flex-end;width:34px;height:34px;border-radius:999px;
      border:1px solid var(--line);background:rgba(255,255,255,.05);
      color:var(--muted);cursor:pointer;font-size:16px;
      display:grid;place-items:center;transition:.2s;flex-shrink:0;
    }
    .panel-close:hover{background:rgba(255,255,255,.12);color:var(--text)}

    /* animated header */
    .panel-tag{
      font-size:11px;font-weight:700;color:var(--accent);letter-spacing:.08em;text-transform:uppercase;
      opacity:0;transform:translateY(10px);
      transition:opacity .35s ease .05s,transform .35s ease .05s;
    }
    .panel-title{
      font-family:'Syne',sans-serif;font-size:24px;letter-spacing:-.04em;line-height:1.15;margin-top:4px;
      opacity:0;transform:translateY(14px);
      transition:opacity .4s ease .12s,transform .4s ease .12s;
    }
    .panel-desc{
      color:var(--muted);font-size:14px;line-height:1.7;
      opacity:0;transform:translateY(10px);
      transition:opacity .4s ease .2s,transform .4s ease .2s;
    }
    .detail-panel.open .panel-tag,
    .detail-panel.open .panel-title,
    .detail-panel.open .panel-desc{opacity:1;transform:translateY(0)}

    .panel-section-label{font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.07em;text-transform:uppercase;margin-bottom:10px}
    .panel-features{display:grid;gap:7px}
    .panel-feature{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted);line-height:1.5}
    .panel-feature::before{content:"→";color:var(--accent);font-size:11px;margin-top:2px;flex-shrink:0}
    .arch-diagram-wrap{
      background:rgba(255,255,255,.02);
      border:1px solid var(--line);
      border-radius:16px;
      padding:16px 12px;
      overflow:hidden;
    }
    .arch-diagram{border-radius:10px}
    html[data-mode="light"] .arch-diagram-wrap{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.08)}
    html[data-mode="light"] .arch-diagram text{fill:rgba(17,24,39,.85) !important}
    html[data-mode="light"] .arch-diagram text[fill="rgba(245,247,250,.9)"]{fill:rgba(17,24,39,.85) !important}
    .panel-links{display:flex;gap:10px;flex-wrap:wrap}
    .panel-divider{height:1px;background:var(--line)}

    /* ── COMPONENT MAP ── */
    .comp-map{
      position:relative;width:100%;height:160px;
      border-radius:16px;border:1px solid var(--line);
      background:rgba(0,0,0,.35);overflow:hidden;
    }
    .comp-map svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
    /* SVG draw-in lines */
    .comp-line{
      stroke:var(--accent);stroke-opacity:.2;stroke-width:1;stroke-dasharray:4 5;
      stroke-dashoffset:0;
      animation:dashFlow 2s linear infinite;
    }
    @keyframes dashFlow{from{stroke-dashoffset:0}to{stroke-dashoffset:-36}}
    .comp-line-static{
      stroke:var(--accent);stroke-opacity:0;stroke-width:1;
      transition:stroke-opacity .4s ease;
    }
    .comp-line-static.drawn{stroke-opacity:.18}
    /* node animation */
    .comp-node{
      position:absolute;display:flex;flex-direction:column;align-items:center;gap:4px;
      transform:translate(-50%,-50%) scale(0);opacity:0;
      transition:transform .4s cubic-bezier(.34,1.56,.64,1),opacity .3s ease;
    }
    .comp-node.in{transform:translate(-50%,-50%) scale(1);opacity:1}
    /* traveling dot */
    .comp-dot{fill:var(--accent);opacity:.75}
    .comp-icon{
      width:38px;height:38px;border-radius:12px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.06);
      display:grid;place-items:center;font-size:18px;
      transition:border-color .2s,background .2s,transform .2s,box-shadow .2s;
    }
    .comp-node:hover .comp-icon{
      border-color:var(--accent);background:var(--accent-soft);
      transform:scale(1.15);box-shadow:0 0 20px var(--accent-soft);
    }
    .comp-label{font-size:9px;color:var(--muted);font-weight:700;letter-spacing:.06em;white-space:nowrap}

    /* ── FILTER BAR on page ── */
    .filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;align-items:center}
    .filter-bar-label{font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-right:2px;white-space:nowrap}
    .filter-btn{
      padding:7px 13px;border-radius:999px;border:1px solid var(--line);
      background:rgba(255,255,255,.04);color:#b0b8c4;font-size:12px;font-weight:600;
      cursor:pointer;font-family:inherit;
      transition:border-color .2s,background .2s,color .2s,transform .15s;
      user-select:none;
    }
    .filter-btn:hover{border-color:rgba(255,255,255,.2);color:var(--text);transform:translateY(-1px)}
    .filter-btn.active{background:var(--accent);border-color:var(--accent);color:var(--accent-dark);font-weight:700}
    .filter-clear{
      padding:7px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.07);
      background:transparent;color:var(--muted);font-size:11px;
      cursor:pointer;font-family:inherit;transition:.2s;display:none;
    }
    .filter-clear.visible{display:block}
    .filter-clear:hover{color:var(--text);border-color:rgba(255,255,255,.16)}

    /* ── STACK FILTER TAGS in panel ── */
    .panel-stack{display:flex;flex-wrap:wrap;gap:7px;margin-top:2px}
    .panel-stack span{
      padding:7px 11px;border-radius:999px;
      background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07);
      color:var(--muted);font-size:11px;cursor:pointer;
      transition:border-color .2s,background .2s,color .2s,transform .15s;
      user-select:none;
    }
    .panel-stack span:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--text);transform:translateY(-1px)}
    .panel-stack span.tag-active{border-color:var(--accent);background:var(--accent);color:var(--accent-dark);font-weight:700}

    /* filtered cards in grid */
    .proj-card.tag-dimmed{opacity:.22;transform:scale(.97)!important;transition:opacity .3s,transform .3s}
    .proj-card.tag-match{border-color:var(--accent)!important;box-shadow:0 0 28px var(--accent-soft)!important}
    .proj-card:hover{transform:translateY(-4px)!important;border-color:rgba(255,255,255,.18);box-shadow:0 34px 72px rgba(0,0,0,.34),0 0 40px var(--accent-soft)}
    .proj-num{font-size:11px;font-weight:700;color:var(--accent);letter-spacing:.09em;opacity:1;transition:color .5s}
    /* overlay backdrop — dim + blur */
    .panel-backdrop{
      position:fixed;inset:0;z-index:99;
      background:rgba(0,0,0,0);
      backdrop-filter:blur(0px);
      -webkit-backdrop-filter:blur(0px);
      pointer-events:none;
      transition:background .4s,backdrop-filter .4s,-webkit-backdrop-filter .4s;
    }
    .panel-backdrop.open{
      background:rgba(0,0,0,.5);
      backdrop-filter:blur(7px);
      -webkit-backdrop-filter:blur(7px);
      pointer-events:all;
    }

    /* ── LIGHT MODE OVERRIDES ── */
    html[data-mode="light"] .card{background:var(--card-bg);border-color:var(--card-border);box-shadow:0 2px 12px rgba(0,0,0,.07)}
    html[data-mode="light"] .proj-card{background:var(--card-bg);border-color:var(--card-border);box-shadow:0 2px 12px rgba(0,0,0,.07)}
    html[data-mode="light"] .proj-card:hover{box-shadow:0 12px 36px rgba(0,0,0,.12),0 0 32px var(--accent-soft)!important}
    html[data-mode="light"] .detail-panel{background:rgba(255,255,255,.97);border-color:rgba(0,0,0,.1)}
    html[data-mode="light"] nav{background:rgba(248,247,244,.85);border-color:rgba(0,0,0,.08)}
    html[data-mode="light"] .node{
      background:rgba(255,255,255,.92);
      border-color:rgba(0,0,0,.1);
      box-shadow:0 8px 32px rgba(0,0,0,.12);
      color:#111827;
    }
    html[data-mode="light"] .node .node-sub{color:#4b5563}
    html[data-mode="light"] .node .node-extra-item{color:#4b5563}
    html[data-mode="light"] .node.active{border-color:var(--accent)}
    html[data-mode="light"] .stack span{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.08);color:#374151}
    html[data-mode="light"] .filter-btn{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.09);color:#4b5563}
    html[data-mode="light"] .eyebrow{background:rgba(0,0,0,.03);color:#374151}
    html[data-mode="light"] .card-flow{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.07)}
    html[data-mode="light"] .comp-map{background:rgba(0,0,0,.04)}
    html[data-mode="light"] .mode-toggle{background:rgba(0,0,0,.04)}
    html[data-mode="light"] .card-cta{background:linear-gradient(90deg,rgba(217,119,6,.1) 0%,transparent 100%);border-color:rgba(217,119,6,.2)}
    html[data-mode="light"] .card-cta:hover{background:linear-gradient(90deg,var(--accent) 0%,rgba(217,119,6,.15) 100%);color:#fff8e6;border-color:var(--accent)}
    html[data-mode="light"] input,html[data-mode="light"] textarea{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.1);color:#111827}

    html[data-mode="light"] footer{color:#6b7280}

    /* ── SECTIONS ── */
    .section{padding:8px 0 88px}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:26px}
    .section-head h2{font-family:'Syne',sans-serif;font-size:clamp(30px,5vw,50px);letter-spacing:-.04em}
    .head-copy{max-width:370px;color:var(--muted);line-height:1.7;font-size:15px;padding-bottom:6px}
    .cards{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
    .card{
      border:1px solid var(--line);background:linear-gradient(170deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
      border-radius:24px;padding:25px;box-shadow:0 25px 65px rgba(0,0,0,.27);
      position:relative;overflow:hidden;
      transition:transform .3s,border-color .3s,box-shadow .3s;
      opacity:0;transform:translateY(28px);
    }
    .card.visible{animation:cardReveal .5s ease forwards}
    @keyframes cardReveal{to{opacity:1;transform:translateY(0)}}
    .card:hover{transform:translateY(-4px)!important;border-color:rgba(255,255,255,.15);box-shadow:0 35px 75px rgba(0,0,0,.34)}
    .card::after{content:"";position:absolute;inset:auto auto -80px -60px;width:150px;height:150px;border-radius:999px;background:radial-gradient(circle,var(--accent-soft),transparent 70%);transition:background .5s}
    .s7{grid-column:span 7}.s5{grid-column:span 5}.s4{grid-column:span 4}.s8{grid-column:span 8}.s6{grid-column:span 6}.s12{grid-column:span 12}
    .card h3{font-family:'Syne',sans-serif;font-size:24px;letter-spacing:-.04em;margin-bottom:10px}
    .card p{color:var(--muted);line-height:1.75;margin-bottom:15px;font-size:15px}
    .stack{display:flex;flex-wrap:wrap;gap:8px}

    /* ── CARD FLOW ANIMATIONS ── */
    .card-flow{
      margin:14px 0 2px;
      padding:12px 14px;
      border-radius:12px;
      background:rgba(0,0,0,.3);
      border:1px solid rgba(255,255,255,.06);
      overflow:hidden;
      position:relative;
    }
    .cf-pipe{display:flex;align-items:center;gap:0;position:relative}
    .cf-node{
      display:flex;flex-direction:column;align-items:center;gap:3px;
      flex:1;position:relative;z-index:1;
    }
    .cf-icon{
      width:32px;height:32px;border-radius:9px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.05);
      display:grid;place-items:center;font-size:15px;
      transition:border-color .3s,background .3s;
    }
    .cf-label{font-size:9px;color:var(--muted);font-weight:700;letter-spacing:.05em;text-align:center;white-space:nowrap}
    .cf-arrow{
      flex:0 0 auto;width:28px;height:2px;
      background:linear-gradient(90deg,rgba(255,255,255,.06),rgba(255,255,255,.06));
      position:relative;overflow:hidden;align-self:center;
    }
    .cf-arrow::after{
      content:'';position:absolute;top:-2px;left:-100%;
      width:40%;height:6px;
      background:linear-gradient(90deg,transparent,var(--accent),transparent);
      animation:cfFlow 2s ease-in-out infinite;
      border-radius:999px;
    }
    /* stagger arrow animations */
    .cf-arrow:nth-child(2)::after{animation-delay:.4s}
    .cf-arrow:nth-child(4)::after{animation-delay:.8s}
    .cf-arrow:nth-child(6)::after{animation-delay:1.2s}

    @keyframes cfFlow{
      0%{left:-50%;opacity:0}
      20%{opacity:1}
      80%{opacity:1}
      100%{left:110%;opacity:0}
    }

    /* active node pulse when dot passes */
    .proj-card:hover .cf-icon{border-color:rgba(255,192,8,.25);background:rgba(255,192,8,.06)}
    .proj-card:hover .cf-arrow{background:rgba(255,192,8,.12)}

    /* binary search bars */
    .cf-bars{display:flex;align-items:flex-end;gap:3px;height:36px;padding:0 4px}
    .cf-bar{
      flex:1;border-radius:3px 3px 0 0;
      background:rgba(255,255,255,.08);
      transition:background .3s;
    }
    .cf-bar.active{background:var(--accent)!important;box-shadow:0 0 8px var(--accent-soft)}
    @keyframes bsStep{
      0%,15%{background:rgba(255,255,255,.08)}
      16%,30%{background:var(--accent);box-shadow:0 0 8px var(--accent-soft)}
      31%,100%{background:rgba(255,255,255,.08)}
    }
    .cf-bar:nth-child(5){animation:bsStep 3.2s ease infinite .0s}
    .cf-bar:nth-child(3){animation:bsStep 3.2s ease infinite .4s}
    .cf-bar:nth-child(7){animation:bsStep 3.2s ease infinite .8s}
    .cf-bar:nth-child(2){animation:bsStep 3.2s ease infinite 1.2s}
    .cf-bar:nth-child(4){animation:bsStep 3.2s ease infinite 1.6s}
    .cf-bar:nth-child(1){animation:bsStep 3.2s ease infinite 2.0s}
    .cf-bar:nth-child(6){animation:bsStep 3.2s ease infinite 2.4s}
    .cf-bar:nth-child(8){animation:bsStep 3.2s ease infinite 2.8s}
    .cf-bisect{
      position:absolute;top:0;bottom:0;width:1px;
      background:var(--accent);opacity:0;
      animation:bisectMove 3.2s ease infinite;
    }
    @keyframes bisectMove{
      0%{left:50%;opacity:0}
      10%{opacity:.6}
      25%{left:25%;opacity:.6}
      40%{left:75%;opacity:.6}
      55%{left:37%;opacity:.4}
      70%{left:62%;opacity:.3}
      85%{opacity:0}
      100%{left:50%;opacity:0}
    }

    /* microservices mesh */
    .cf-mesh{position:relative;height:52px;width:100%}
    .cf-mesh svg{position:absolute;inset:0;width:100%;height:100%}
    .cf-ms-node{
      position:absolute;width:30px;height:30px;border-radius:8px;
      border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);
      display:grid;place-items:center;font-size:13px;
      transform:translate(-50%,-50%);
    }
    .cf-ms-node.center{
      border-color:rgba(255,192,8,.4);background:rgba(255,192,8,.08);
      box-shadow:0 0 14px rgba(255,192,8,.15);
    }
    .stack span{padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07);color:var(--muted);font-size:12px;transition:border-color .2s,background .2s}
    .stack span:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}
    .status-list{display:grid;gap:9px;margin-top:4px}
    .status{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:13px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);color:var(--text);transition:border-color .2s,background .2s}
    .status:hover{border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.07)}
    .status b{font-weight:700}.status small{color:var(--muted);font-size:13px}

    /* ── PROJ GRID 2×3 ── */
    .proj-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
    .proj-grid .proj-card:last-child:nth-child(odd){grid-column:1 / -1;max-width:calc(50% - 9px);width:100%;margin:0 auto}
    .proj-card{
      border:1px solid var(--line);
      background:linear-gradient(170deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
      border-radius:24px;padding:28px;
      box-shadow:0 22px 60px rgba(0,0,0,.26),0 4px 20px var(--shadow-cold);
      position:relative;overflow:hidden;
      transition:transform .28s,border-color .28s,box-shadow .28s;
      display:flex;flex-direction:column;gap:13px;
      min-height:100%;
      opacity:0;transform:translateY(28px);
    }
    .proj-card.visible{animation:cardReveal .5s ease forwards}
    .proj-card::before{content:"";position:absolute;inset:auto auto -70px -50px;width:140px;height:140px;border-radius:999px;background:radial-gradient(circle,var(--accent-soft),transparent 70%);transition:background .5s}
    .proj-card::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s,background .5s}
    .proj-card:hover::after{transform:scaleX(1)}
    .proj-card h3{font-family:'Syne',sans-serif;font-size:21px;letter-spacing:-.04em;line-height:1.12;margin:0}
    .proj-card p{color:var(--muted);font-size:14px;line-height:1.7;flex:1;margin:0}
    .stack{margin-top:2px}
    .card-flow{margin:14px 0 0}
    @media(max-width:720px){
      .proj-grid{grid-template-columns:1fr}
      .proj-grid .proj-card:last-child:nth-child(odd){max-width:100%;margin:0}
    }

    /* ── PROGRESS BAR ── */
    .prog-wrap{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
    .prog-header{display:flex;justify-content:space-between;align-items:center}
    .prog-label{font-size:12px;color:var(--muted);font-weight:600}
    .prog-pct{font-family:'Syne',sans-serif;font-size:16px;font-weight:800;color:var(--accent);transition:color .5s}
    .prog-track{height:5px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
    .prog-bar{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),color-mix(in srgb,var(--accent) 60%,white));box-shadow:0 0 12px var(--accent-soft);transition:background .5s,box-shadow .5s;animation:progLoad 1.2s cubic-bezier(.22,1,.36,1) both}
    @keyframes progLoad{from{width:0!important}to{}}
    .prog-stages{font-size:11px;color:var(--muted)}
    .proj-card-footer{
      display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
      position:relative;margin-top:auto;padding-top:18px;
    }
    .proj-card-footer::before{
      content:'';
      position:absolute;bottom:100%;left:-28px;right:-28px;
      height:80px;pointer-events:none;
      background:linear-gradient(to bottom,transparent,rgba(5,5,6,.82));
    }
    html[data-mode="light"] .proj-card-footer::before{
      background:linear-gradient(to bottom,transparent,rgba(255,252,246,.88));
    }


    /* card cta link */
    .card-cta{
      display:flex;align-items:center;justify-content:flex-start;gap:8px;
      width:100%;
      margin-top:0;padding:13px 22px;
      color:var(--accent);font-size:13px;font-weight:700;
      text-decoration:none;cursor:pointer;
      background:linear-gradient(90deg,var(--accent-soft) 0%,transparent 100%);
      border:1px solid rgba(255,192,8,.15);
      border-radius:999px;
      position:relative;overflow:hidden;
      transition:background .3s,border-color .3s,box-shadow .3s,transform .2s;
    }
    .card-cta::before{
      content:'';position:absolute;top:0;left:-100%;
      width:60%;height:100%;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);
      transition:left .45s ease;
      pointer-events:none;
    }
    .card-cta:hover{
      background:linear-gradient(90deg,var(--accent) 0%,rgba(255,192,8,.15) 100%);
      border-color:var(--accent);
      box-shadow:0 0 28px var(--accent-soft),0 4px 14px var(--shadow-cold);
      transform:translateY(-1px);
      color:var(--accent-dark);
    }
    .card-cta:hover::before{left:150%}
    .card-cta .cta-arrow{
      margin-left:auto;
      display:inline-block;
      transition:transform .25s cubic-bezier(.34,1.56,.64,1);
    }
    .card-cta:hover .cta-arrow{transform:translateX(5px)}

    /* ── ABOUT ── */
    .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
    .about-text p{color:var(--muted);line-height:1.8;margin-bottom:16px;font-size:15px}
    .about-text p:last-child{margin-bottom:0}
    .about-text strong{color:var(--text)}

    /* ── CONTACT ── */
    .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
    .contact-info h3,.contact-form-wrap h3{font-family:'Syne',sans-serif;font-size:22px;letter-spacing:-.04em;margin-bottom:14px}
    .contact-info p{color:var(--muted);font-size:15px;line-height:1.7;margin-bottom:18px}
    .contact-item{display:flex;align-items:center;gap:12px;padding:13px 16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);margin-bottom:10px;font-size:14px;color:var(--text);transition:border-color .2s,background .2s}
    .contact-item:hover{border-color:rgba(255,255,255,.16);background:rgba(255,255,255,.06)}
    .contact-item a{color:var(--text);text-decoration:none}
    .contact-item a:hover{color:var(--accent)}
    .contact-icon{font-size:16px}

    form input,form textarea{
      width:100%;padding:13px 16px;border-radius:13px;
      border:1px solid var(--line);background:rgba(255,255,255,.04);
      color:var(--text);font-size:14px;font-family:inherit;
      margin-bottom:12px;outline:none;
      transition:border-color .2s,background .2s;
      resize:vertical;
    }
    form input:focus,form textarea:focus{border-color:var(--accent);background:rgba(255,255,255,.07)}
    form input::placeholder,form textarea::placeholder{color:var(--muted)}
    .form-status{font-size:13px;color:var(--muted);margin-top:8px;min-height:20px}

    footer{padding:22px 0 56px;color:var(--muted);font-size:14px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:40px;flex-wrap:wrap;gap:8px}

    /* cursor glow */
    .cursor-glow{position:fixed;width:280px;height:280px;border-radius:999px;background:radial-gradient(circle,var(--accent-soft),transparent 70%);pointer-events:none;z-index:0;transform:translate(-50%,-50%);opacity:.45;transition:left .1s ease,top .1s ease,background 1s}

    @media(max-width:960px){
      .hero-grid{grid-template-columns:1fr}
      .orbit-wrap{min-height:420px}
      .s7,.s5,.s4,.s8,.s6{grid-column:span 12}
      .nav-links{display:none}
      .section-head{flex-direction:column}
      .about-grid,.contact-grid{grid-template-columns:1fr}
      .detail-panel{width:100%;border-left:none;border-top:1px solid var(--line)}
      .cursor-glow{display:none}
    }
    /* SEO section — visible to Google, subtle visually */
    .seo-section { padding: 0 0 8px; }
    .seo-heading { font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
    .seo-text { font-size: 13px; color: var(--muted); line-height: 1.7; max-width: 860px; }
    .sr-only { position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0; }