:root {
  --bg: #07090c;
  --panel: #0d1116;
  --panel-2: #121821;
  --line: #1c2430;
  --line-2: #2a3544;
  --text: #e6edf5;
  --muted: #8593a5;
  --faint: #4a5667;
  --acc: #2f5bff;
  --acc-hi: #7d93ff;
  --acc-dim: rgba(47,91,255,.22);
  --acc-ink: #ffffff;
  --mag: #ff5fa2;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0; color: var(--text); font: 16px/1.55 var(--sans); -webkit-font-smoothing: antialiased;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(90,120,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,120,255,.045) 1px, transparent 1px);
  background-size: 48px 48px;
}
a { color: inherit; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.025em; margin: 0; }
p { margin: 0; }
::selection { background: var(--acc); color: var(--acc-ink); }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.eyebrow { font: 500 12px/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 28px; }
.eyebrow span { color: var(--acc-hi); margin: 0 6px; }
.idx { font: 500 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0; display: flex; flex-direction: column; gap: 8px; padding-top: 10px; border-top: 2px solid var(--acc); }
.idx b { color: var(--acc-hi); font-weight: 500; }

/* corner brackets */
.brk { position: relative; }
.brk::before, .brk::after { content: ""; position: absolute; width: 10px; height: 10px; border: 1px solid var(--acc); pointer-events: none; }
.brk::before { top: -5px; left: -5px; border-right: 0; border-bottom: 0; }
.brk::after { bottom: -5px; right: -5px; border-left: 0; border-top: 0; }

/* system bar + nav */
.sysbar { background: #04060a; border-bottom: 1px solid var(--line); font: 500 11px var(--mono); letter-spacing: .08em; color: var(--muted); }
.sysbar-inner { display: flex; justify-content: space-between; gap: 16px; height: 30px; align-items: center; }
.sysbar .dot { display: inline-block; width: 6px; height: 6px; background: var(--acc); border-radius: 50%; margin-right: 8px; box-shadow: 0 0 10px var(--acc-hi); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
#utc { color: var(--text); font-variant-numeric: tabular-nums; }
.nav { position: sticky; top: 0; z-index: 10; background: rgba(7,9,12,.86); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.mark { display: flex; align-items: center; gap: 7px; text-decoration: none; }
.mark-svg { display: block; color: var(--text); margin-right: 4px; }
.brand-name { font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.brand-sfx { font: 400 18px var(--sans); letter-spacing: -0.02em; color: var(--muted); margin-left: -2px; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--muted); }
.nav-links a:not(.btn) b { font: 500 10px var(--mono); color: var(--faint); margin-right: 6px; vertical-align: 2px; }
.nav-links a:not(.btn):hover { color: var(--text); }
.nav-links a:not(.btn):hover b { color: var(--acc-hi); }

.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--acc); color: var(--acc-ink); border: 1px solid var(--acc); padding: 12px 20px; font: 500 13px var(--mono); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; cursor: pointer; border-radius: 0; transition: box-shadow .15s; }
.btn:hover { box-shadow: 0 0 0 3px var(--acc-dim), 0 0 24px rgba(47,91,255,.45); }
.btn-sm { padding: 8px 14px; font-size: 12px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--acc); color: var(--acc-hi); box-shadow: none; }
.btn:disabled { opacity: .5; cursor: wait; }

/* hero */
.hero { padding-top: 96px; padding-bottom: 0; }
.hero-copy { text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero h1 { font-size: clamp(38px, 6vw, 78px); line-height: 1.02; letter-spacing: -0.035em; max-width: 1040px; margin-bottom: 26px; text-wrap: balance; }
.lede { color: var(--muted); font-size: 18px; max-width: 640px; text-wrap: pretty; }
.hero-cta { display: flex; gap: 12px; margin-top: 36px; flex-wrap: wrap; justify-content: center; }
.wall-wrap { max-width: 1440px; margin: 80px auto 0; padding: 0 24px; }
.wall-head { display: flex; justify-content: space-between; gap: 16px; font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--faint); padding: 0 2px 10px; }
.wall-head span:first-child { color: var(--muted); }
.wall-head .rec { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--mag); margin-right: 8px; vertical-align: 1px; animation: pulse 1.6s infinite; }
.wall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); }
.feed { margin: 0; background: #000; position: relative; }
.feed::after { content: ""; position: absolute; inset: 0 0 30px 0; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(0,0,0,.22) 0 1px, transparent 1px 3px); }
.feed canvas { display: block; width: 100%; aspect-ratio: 4 / 3; }
.feed figcaption { display: flex; gap: 8px; align-items: center; height: 30px; font: 400 11px var(--mono); color: var(--muted); padding: 0 10px; border-top: 1px solid var(--line-2); background: var(--panel); white-space: nowrap; overflow: hidden; }
.feed figcaption b { color: var(--acc-ink); background: var(--acc); font-weight: 500; padding: 1px 5px; font-size: 10px; }
.feed .tc { margin-left: auto; font-style: normal; color: var(--text); font-variant-numeric: tabular-nums; }

.band { border-bottom: 1px solid var(--line); background: var(--panel); }
.band-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.band-inner > div { padding: 22px 20px; border-left: 1px solid var(--line); display: flex; flex-direction: column; gap: 4px; }
.band-inner > div:first-child { border-left: 0; padding-left: 0; }
.band .k { font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--acc-hi); }
.band .v { font-size: 14px; }

/* sections */
.section { padding: 104px 0; }
.wrap.section { padding-left: 24px; padding-right: 24px; }
.section.alt { background: rgba(13,17,22,.92); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 200px minmax(0, 760px); column-gap: 48px; align-items: start; margin-bottom: 56px; }
.request-copy .idx { margin-bottom: 24px; max-width: 200px; }
.section-head h2, .request h2 { font-size: clamp(28px, 3.2vw, 40px); line-height: 1.1; }
.sub { color: var(--muted); margin-top: 14px; font-size: 17px; }

/* products */
.products { display: flex; flex-direction: column; border-top: 1px solid var(--line-2); }
.product { border-bottom: 1px solid var(--line-2); }
.product-head { width: 100%; display: grid; grid-template-columns: 96px 1fr auto 28px; gap: 20px; align-items: center; padding: 28px 0; background: none; border: 0; color: inherit; text-align: left; cursor: pointer; font: inherit; }
.product-head:hover .ptitle { color: var(--acc-hi); }
.product .code { font: 500 12px var(--mono); color: var(--acc-hi); letter-spacing: .06em; }
.product .code small { display: block; color: var(--faint); font-size: 10px; margin-top: 4px; letter-spacing: .1em; }
.product .ptitle { display: block; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; transition: color .15s; }
.product .tagline { display: block; color: var(--muted); font-size: 15px; margin-top: 4px; }
.pill { font: 500 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; border: 1px solid rgba(47,91,255,.55); color: var(--acc-hi); padding: 5px 9px; white-space: nowrap; }
.pill::before { content: "● "; }
.pill.custom { color: var(--mag); border-color: rgba(255,95,162,.4); }
.chev { width: 28px; height: 28px; display: grid; place-items: center; color: var(--muted); font: 18px var(--mono); transition: transform .2s; }
.product.open .chev { transform: rotate(45deg); color: var(--acc-hi); }
.product-body { display: none; padding: 0 0 36px 116px; }
.product.open .product-body { display: block; }
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.spec { background: var(--bg); padding: 18px; }
.spec h4 { font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
.spec ul { list-style: none; margin: 0; padding: 0; font-size: 14px; display: flex; flex-direction: column; gap: 6px; }
.spec li::before { content: "› "; color: var(--acc-hi); font-family: var(--mono); }
.tree { margin: 16px 0 0; border: 1px solid var(--line); background: #04060a; }
.tree-head { display: flex; justify-content: space-between; font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding: 9px 14px; border-bottom: 1px solid var(--line); }
.tree-head span:last-child { color: var(--faint); letter-spacing: .04em; text-transform: none; }
.tree pre { margin: 0; padding: 14px; font: 12.5px/1.7 var(--mono); color: var(--text); overflow-x: auto; }
.tree .dim { color: var(--faint); } .tree .note { color: var(--muted); }
.product-foot { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 18px; flex-wrap: wrap; }
.product-foot p { color: var(--muted); font-size: 14px; max-width: 700px; }
.fmt { font: 12px var(--mono); color: var(--text); }
.fmt span { border: 1px solid var(--line-2); padding: 3px 7px; margin-right: 4px; display: inline-block; margin-bottom: 4px; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line-2); position: relative; }
.steps li { padding: 24px 20px; border-left: 1px solid var(--line-2); background: var(--bg); position: relative; }
.steps li:first-child { border-left: 0; }
.steps li::before { content: ""; position: absolute; top: -1px; left: 0; width: 32px; height: 2px; background: var(--acc); }
.steps .n, .card .n { font: 500 11px var(--mono); letter-spacing: .1em; color: var(--acc-hi); }
.steps h3 { font-size: 17px; margin: 14px 0 8px; }
.steps p { color: var(--muted); font-size: 14px; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { border: 1px solid var(--line-2); padding: 28px; background: var(--panel); }
.card h3 { font-size: 18px; margin: 12px 0 10px; }
.card p { color: var(--muted); font-size: 15px; }

/* form */
.request { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: start; }
.form { display: flex; flex-direction: column; gap: 16px; padding: 28px; border: 1px solid var(--line-2); background: var(--bg); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: flex; flex-direction: column; gap: 6px; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.form input, .form select, .form textarea { background: var(--panel); color: var(--text); border: 1px solid var(--line-2); padding: 11px 12px; font: 15px var(--sans); letter-spacing: 0; text-transform: none; border-radius: 0; width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-dim); }
.form fieldset { border: 0; padding: 0; margin: 0; }
.form legend { font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; padding: 0; }
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.checks label { flex-direction: row; align-items: center; gap: 10px; color: var(--text); font: 14px var(--sans); letter-spacing: 0; text-transform: none; border: 1px solid var(--line-2); padding: 10px 12px; background: var(--panel); cursor: pointer; }
.checks input { width: auto; accent-color: var(--acc); }
.checks label:has(input:checked) { border-color: var(--acc); background: var(--acc-dim); }
.form .btn { align-self: flex-start; }
.form-msg { font: 13px var(--mono); min-height: 20px; }
.form-msg.ok { color: var(--acc-hi); }
.form-msg.err { color: var(--mag); }
.hp { position: absolute; left: -9999px; }

.foot { border-top: 1px solid var(--line); padding: 28px 0; font: 12px var(--mono); color: var(--muted); background: #04060a; }
.foot-inner { display: flex; justify-content: space-between; gap: 16px; }

@media (max-width: 960px) {
  .hero { padding-top: 64px; }
  .wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wall-wrap { margin-top: 56px; }
  .section-head { grid-template-columns: 1fr; row-gap: 20px; }
  .section-head .idx { flex-direction: row; gap: 10px; max-width: 280px; }
  .band-inner { grid-template-columns: 1fr 1fr; }
  .band-inner > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .band-inner > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .spec-grid { grid-template-columns: 1fr 1fr; }
  .product-body { padding-left: 0; }
  .steps { grid-template-columns: 1fr; }
  .steps li { border-left: 0; border-top: 1px solid var(--line-2); }
  .steps li:first-child { border-top: 0; }
  .grid3, .request { grid-template-columns: 1fr; gap: 24px; }
  .request { gap: 32px; }
}
@media (max-width: 640px) {
  .wrap, .wrap.section { padding-left: 16px; padding-right: 16px; }
  .hide-sm { display: none; }
  .nav-links a:not(.btn) { display: none; }
  .section { padding: 72px 0; }
  .band-inner { grid-template-columns: 1fr; }
  .band-inner > div { border-left: 0 !important; padding-left: 0; border-top: 1px solid var(--line); }
  .band-inner > div:first-child { border-top: 0; }
  .product-head { grid-template-columns: 1fr 28px; gap: 8px 12px; }
  .product-head .code { grid-column: 1; }
  .product-head .pill { justify-self: start; grid-column: 1; }
  .product-head .chev { grid-row: 1; grid-column: 2; }
  .spec-grid, .form .row, .checks { grid-template-columns: 1fr; }
  .form { padding: 18px; }
  .feed figcaption { font-size: 10px; padding: 0 6px; gap: 6px; }
  .feed figcaption span { display: none; }
  .wall-wrap { padding: 0 16px; }
  .wall-head span:last-child { display: none; }
  .foot-inner { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .sysbar .dot { animation: none; } }