:root {
  --bg: #0d0f11;
  --panel: #13161a;
  --panel-2: #181c21;
  --ink: #e6e7e3;
  --ink-2: #b4b8bc;
  --muted: #7d838a;
  --line: #22262b;
  --line-2: #343a41;
  --accent: #d29a35;
  --ok: #5fb878;
  --red: #d9583b;
  --max: 1160px;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0 0 .5em; font-weight: 500; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); font-weight: 400; letter-spacing: -0.03em; line-height: 1.08; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 400; }
h3 { font-size: 1.05rem; }
.mono { font-family: var(--mono); font-size: .75rem; font-weight: 400; letter-spacing: .06em; text-transform: uppercase; }
.muted { color: var(--muted); }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 32px; }
::selection { background: var(--ink); color: var(--bg); }

/* Logo */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.mark { width: 32px; height: 32px; flex: none; }
.mark__frame { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.mark__b { fill: none; stroke: var(--ink); stroke-width: 2.4; stroke-linejoin: miter; }
.mark__dot { fill: var(--accent); }
.logo__text { display: grid; line-height: 1.05; }
.logo__name { font-weight: 600; font-size: .95rem; letter-spacing: .22em; text-transform: uppercase; }
.logo__sub { font-family: var(--mono); font-size: .6rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

/* Links & buttons */
.link { border-bottom: 1px solid var(--line-2); transition: border-color .2s; }
.link:hover { border-color: var(--ink); }
.btn {
  display: inline-block; font: 500 .9rem var(--sans); padding: .85em 1.5em; background: var(--ink); color: var(--bg);
  border: 1px solid var(--ink); cursor: pointer; transition: background .2s, color .2s;
}
.btn:hover { background: transparent; color: var(--ink); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--sm { padding: .55em 1.1em; font-size: .85rem; }

/* Nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(13, 15, 17, .9); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav__links { display: flex; align-items: center; gap: 30px; font-size: .9rem; }
.nav__links a:not(.btn) { color: var(--ink-2); }
.nav__links a:not(.btn):hover { color: var(--ink); text-decoration: underline; text-underline-offset: 5px; }
.nav__toggle { display: none; font: 500 .85rem var(--sans); background: none; border: 1px solid var(--line-2); padding: .5em 1em; cursor: pointer; color: var(--ink); }

/* Hero */
.hero { padding: 150px 0 0; border-bottom: 1px solid var(--line); }
.hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; padding-bottom: 88px; }
.eyebrow { color: var(--accent); margin-bottom: 24px; }
.eyebrow::before { content: ""; display: inline-block; width: 24px; height: 1px; background: var(--accent); vertical-align: middle; margin-right: 12px; }
.lead { font-size: 1.12rem; color: var(--ink-2); max-width: 540px; margin: 1.4em 0 2.2em; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

.diagram {
  margin: 0; padding: 28px; background-color: var(--panel); border: 1px solid var(--line);
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 20px 20px; background-position: -1px -1px;
}
.diagram svg { width: 100%; height: auto; display: block; font-family: var(--mono); }
.d-lines path { fill: none; stroke: var(--line-2); stroke-width: 1.2; }
.d-box rect { fill: var(--panel); stroke: var(--ink); stroke-width: 1.2; }
.d-box .d-core { fill: var(--ink); }
.d-txt text { font-size: 10px; letter-spacing: .1em; fill: var(--ink); text-anchor: middle; }
.d-txt .d-strong { font-weight: 500; font-size: 11px; }
.d-txt .d-small { font-size: 8.5px; }
.d-txt .d-muted { fill: var(--muted); }
.d-txt .d-inv { fill: var(--bg); }
.d-nodes rect { fill: var(--accent); }
.d-rule { stroke: var(--line-2); }
.d-cap { font-size: 9px; letter-spacing: .1em; fill: var(--muted); }
.d-right { text-anchor: end; }

.summary { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; border-top: 1px solid var(--line); }
.summary div { padding: 22px 24px 26px 0; }
.summary div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.summary dt { color: var(--muted); margin-bottom: 6px; }
.summary dd { margin: 0; font-weight: 500; display: flex; align-items: center; gap: 8px; }
.status { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); margin-right: 8px; flex: none; }
.summary .status { margin-right: 0; }

/* Sections */
.section { padding: 112px 0; border-bottom: 1px solid var(--line); }
.head { display: grid; grid-template-columns: 120px 1fr; gap: 24px; margin-bottom: 56px; max-width: 820px; }
.num { color: var(--accent); font-size: .85rem; padding-top: .55em; margin: 0; }
.head .muted { max-width: 580px; margin: 0; }

/* Portfolio */
.portfolio { border-top: 1px solid var(--ink); }
.unit { display: grid; grid-template-columns: 120px 1.6fr 1fr 1fr; gap: 24px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); transition: background .2s; }
a.unit:hover { background: var(--panel); }
.unit p { margin: 0; }
.unit__id { color: var(--muted); padding-left: 0; }
.unit__main h3 { font-size: 1.3rem; font-weight: 400; margin-bottom: .2em; }
.unit__main p { color: var(--muted); }
.unit__type { color: var(--ink-2); }
.unit__status { display: flex; align-items: center; color: var(--ink-2); }

/* Spindl */
.product-tag { color: var(--muted); margin-bottom: 10px; }
.product { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: start; }
.product__side { position: sticky; top: 100px; }
.product__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.features__lead { font-size: 1.2rem; color: var(--ink-2); margin-bottom: .5em; }

.viewer { margin-bottom: 72px; }
.shot { margin: 0 0 16px; border: 1px solid var(--line-2); background: var(--panel); }
.shot__frame { background: #fff; aspect-ratio: 16 / 10; overflow: hidden; display: grid; place-items: center; }
.shot__frame img { width: 100%; height: 100%; object-fit: contain; display: block; transition: opacity .25s; }
.shot__frame img.is-loading { opacity: 0; }
.shot figcaption { display: flex; justify-content: space-between; gap: 16px; padding: 12px 16px; color: var(--muted); font-size: .68rem; border-top: 1px solid var(--line); }
.shot figcaption span:first-child { color: var(--accent); }
.thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.thumb { padding: 0; background: var(--panel); border: 1px solid var(--line); cursor: pointer; text-align: left; color: var(--muted); transition: border-color .2s, color .2s; }
.thumb img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; opacity: .6; transition: opacity .2s; }
.thumb span { display: block; padding: 10px 12px; font-size: .65rem; border-top: 1px solid var(--line); }
.thumb:hover img, .thumb.is-active img { opacity: 1; }
.thumb:hover { color: var(--ink-2); }
.thumb.is-active { border-color: var(--ink); color: var(--ink); }
.thumb:focus-visible { outline: 1px solid var(--accent); outline-offset: 2px; }
.features { list-style: none; padding: 0; margin: 0 0 40px; border-top: 1px solid var(--line); }
.features li { display: grid; grid-template-columns: 48px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.features li > span { color: var(--accent); padding-top: .25em; }
.features h3 { margin-bottom: .25em; }
.features p { color: var(--muted); margin: 0; font-size: .95rem; }
.product .spec { margin-bottom: 32px; }

/* Capabilities */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); margin-bottom: 72px; }
.cap { padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--panel); }
.cap__n { color: var(--muted); margin-bottom: 28px; }
.cap p:last-child { color: var(--ink-2); font-size: .95rem; margin: 0; }
.phases { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.phases li { padding: 0 28px 0 0; }
.phases li + li { padding-left: 28px; }
.phases li::before { content: ""; display: block; height: 3px; background: var(--ink); margin-bottom: 22px; }
.phases li + li::before { margin-left: -28px; }
.phase__n { color: var(--accent); margin-bottom: 10px; }
.phase__out { color: var(--muted); margin: 0; font-size: .7rem; }

/* Spec tables */
.spec { width: 100%; border-collapse: collapse; border-top: 1px solid var(--ink); background: var(--panel); }
.spec th, .spec td { text-align: left; padding: 16px 22px; border-bottom: 1px solid var(--line); vertical-align: baseline; }
.spec th { width: 150px; color: var(--muted); font-weight: 400; background: var(--panel-2); border-right: 1px solid var(--line); }
.spec td { color: var(--ink); }

/* Company */
.company { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.company__text { font-size: 1.2rem; line-height: 1.55; color: var(--ink-2); }

/* Contact */
.section--contact { background: var(--panel); border-bottom: 0; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 32px; max-width: 820px; margin-left: 144px; }
.form .full { grid-column: 1 / -1; }
.form label { display: grid; gap: 8px; }
.form label > span { color: var(--muted); }
.form input, .form textarea, .form select {
  font: 400 1rem var(--sans); color: var(--ink); background: var(--bg); border: 1px solid var(--line-2);
  padding: .8em .9em; border-radius: 0; outline: none; resize: vertical; transition: border-color .2s;
}
.form select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237d838a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; }
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--ink); }
.form .invalid { border-color: var(--red); }
.form__foot { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.form__status { margin: 0; color: var(--ok); }
.form__trap { position: absolute; left: -9999px; }

/* Footer */
.footer { background: var(--bg); border-top: 1px solid var(--line); padding: 36px 0; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer__links { display: flex; gap: 28px; color: var(--muted); }
.footer__links a:hover { color: var(--ink); }
.footer__copy { color: var(--muted); margin: 0; }

/* Responsive */
@media (max-width: 980px) {
  .hero__grid, .company, .product { grid-template-columns: 1fr; gap: 48px; }
  .product__side { position: static; }
  .thumbs { grid-template-columns: 1fr 1fr; }
  .summary, .phases { grid-template-columns: 1fr 1fr; }
  .summary div:nth-child(3) { padding-left: 0; border-left: 0; }
  .summary div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .phases { gap: 40px 0; }
  .phases li:nth-child(3) { padding-left: 0; }
  .phases li:nth-child(3)::before { margin-left: 0; }
  .caps { grid-template-columns: 1fr 1fr; }
  .unit { grid-template-columns: 80px 1fr 1fr; }
  .unit__type { display: none; }
  .form { margin-left: 0; }
}
@media (max-width: 720px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 32px 24px;
    background: var(--bg); border-bottom: 1px solid var(--line); display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links .btn { margin-top: 16px; text-align: center; }
  .hero { padding-top: 120px; }
  .section { padding: 80px 0; }
  .head { grid-template-columns: 1fr; gap: 8px; }
  .caps, .phases, .summary, .form { grid-template-columns: 1fr; }
  .summary div, .summary div + div { padding-left: 0; border-left: 0; }
  .summary div + div { border-top: 1px solid var(--line); padding-top: 18px; }
  .summary div { padding-bottom: 18px; }
  .phases li, .phases li + li { padding: 0; }
  .phases li + li::before { margin-left: 0; }
  .unit { grid-template-columns: 1fr; gap: 6px; padding: 22px 0; }
  .diagram { padding: 14px; }
  .spec th, .spec td { display: block; width: auto; border-right: 0; padding: 12px 16px; }
  .spec th { padding-bottom: 2px; border-bottom: 0; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .nav__links { padding: 8px 16px 24px; }
  .logo__name { letter-spacing: .16em; }
}