@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500;600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --ink: #07101d;
  --navy: #0b1628;
  --panel: #111f35;
  --panel-2: #162944;
  --ice: #edf7ff;
  --muted: #a9bdd0;
  --line: rgba(187, 220, 246, .16);
  --blue: #67c8ff;
  --violet: #8b72ff;
  --mint: #65e6c4;
  --orange: #ff784f;
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); }
body {
  margin: 0;
  color: var(--ice);
  background:
    radial-gradient(circle at 72% 10%, rgba(79, 75, 190, .18), transparent 32rem),
    radial-gradient(circle at 12% 34%, rgba(34, 142, 198, .11), transparent 30rem),
    var(--ink);
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.55;
}
body.system-lock { overflow: hidden; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
img { max-width: 100%; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  background: var(--ice);
  color: var(--ink);
  padding: 12px 18px;
  border-radius: 10px;
}
.skip-link:focus { top: 16px; }

.system-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 29, .88);
  backdrop-filter: blur(18px);
}
.nav-inner {
  width: min(var(--max), calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.system-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
}
.system-brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
}
.system-brand small {
  display: block;
  color: var(--blue);
  font: 600 9px/1 "IBM Plex Mono", monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-links a {
  color: var(--muted);
  font: 600 11px/1 "IBM Plex Mono", monospace;
  letter-spacing: .05em;
  text-decoration: none;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--ice); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid var(--blue);
  border-radius: 12px;
  background: var(--blue);
  color: var(--ink) !important;
  font-weight: 700 !important;
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  cursor: pointer;
}
.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;
}
.menu-toggle > span:not(.sr-only) {
  display: block;
  width: 20px;
  margin: 4px auto;
  border-top: 2px solid var(--ice);
}

.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: clamp(72px, 9vw, 132px) 0; }
.section-tight { padding: clamp(48px, 6vw, 82px) 0; }
.hairline { border-top: 1px solid var(--line); }
.mono {
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow {
  margin: 0 0 18px;
  color: var(--blue);
  font: 600 11px/1.2 "IBM Plex Mono", monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 880px;
  margin-bottom: 26px;
  font-size: clamp(46px, 7.7vw, 94px);
  line-height: .96;
  letter-spacing: -.055em;
}
h2 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -.045em;
}
h3 { font-size: 22px; line-height: 1.12; letter-spacing: -.025em; }
.lede {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.45;
}
.hero {
  min-height: calc(100dvh - 72px);
  display: flex;
  align-items: center;
  padding: clamp(54px, 8vw, 96px) 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: clamp(44px, 8vw, 100px);
  align-items: center;
}
.hero h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--blue), #c5baff 62%, var(--mint));
  -webkit-background-clip: text;
  background-clip: text;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--blue);
  border-radius: 13px;
  background: var(--blue);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.button.secondary { background: transparent; color: var(--ice); border-color: var(--line); }
.button:hover { transform: translateY(-2px); }
.hero-note {
  margin-top: 20px;
  color: var(--muted);
  font-size: 14px;
}
.brain-orbit {
  position: relative;
  aspect-ratio: 1;
  min-height: 330px;
  display: grid;
  place-items: center;
}
.brain-core {
  position: relative;
  z-index: 3;
  width: 170px;
  height: 170px;
  display: grid;
  place-items: center;
  padding: 22px;
  border: 1px solid rgba(103, 200, 255, .6);
  border-radius: 50%;
  background: radial-gradient(circle at 36% 30%, #254e78, var(--navy) 65%);
  box-shadow: 0 0 0 18px rgba(103, 200, 255, .05), 0 0 80px rgba(103, 200, 255, .22);
  text-align: center;
}
.brain-core strong { display: block; font-size: 20px; line-height: 1.05; }
.brain-core small { color: var(--blue); }
.orbit-ring {
  position: absolute;
  inset: 7%;
  border: 1px solid var(--line);
  border-radius: 50%;
}
.orbit-node {
  position: absolute;
  z-index: 4;
  width: 12px;
  height: 12px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 22px var(--blue);
}
.orbit-node:nth-of-type(2) { top: 7%; left: 49%; }
.orbit-node:nth-of-type(3) { top: 29%; right: 8%; background: var(--violet); }
.orbit-node:nth-of-type(4) { bottom: 15%; right: 21%; background: var(--mint); }
.orbit-node:nth-of-type(5) { bottom: 15%; left: 21%; background: var(--orange); }
.orbit-node:nth-of-type(6) { top: 29%; left: 8%; }
.orbit-label {
  position: absolute;
  color: var(--muted);
  font: 600 10px/1.1 "IBM Plex Mono", monospace;
  text-transform: uppercase;
}
.label-one { top: 0; left: 50%; transform: translateX(-50%); }
.label-two { top: 25%; right: 0; }
.label-three { bottom: 4%; right: 12%; }
.label-four { bottom: 4%; left: 12%; }
.label-five { top: 25%; left: 0; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}
.step { min-height: 260px; padding: 32px; background: var(--navy); }
.step-number { color: var(--blue); font: 600 13px/1 "IBM Plex Mono", monospace; }
.step h3 { margin: 52px 0 12px; font-size: 30px; }
.step p { color: var(--muted); }

.brain-proof {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(42px, 8vw, 100px);
  align-items: start;
}
.brain-price {
  margin: 28px 0;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1;
}
.brain-price span { color: var(--muted); font-size: 16px; }
.brain-output {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.output-item {
  min-height: 138px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(255,255,255,.035), transparent);
}
.output-item strong { display: block; margin-bottom: 22px; color: var(--blue); font: 600 12px/1 "IBM Plex Mono", monospace; }
.output-item p { margin-bottom: 0; color: var(--muted); }

.builder-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
  align-items: start;
}
.signal-map, .summary-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 22, 40, .82);
}
.signal-map { padding: clamp(22px, 4vw, 44px); }
.map-stage {
  position: relative;
  min-height: 530px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-content: center;
}
.map-brain {
  grid-column: 1 / -1;
  width: min(300px, 82%);
  margin: 8px auto 28px;
  padding: 24px;
  border: 1px solid rgba(103, 200, 255, .48);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(103,200,255,.16), rgba(139,114,255,.10));
  text-align: center;
}
.map-brain strong { display: block; font-size: 24px; }
.engine-option {
  min-height: 116px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  text-align: left;
  cursor: pointer;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.engine-option:hover { transform: translateY(-2px); }
.engine-option[aria-pressed="true"] {
  border-color: var(--blue);
  background: linear-gradient(135deg, rgba(103,200,255,.14), rgba(139,114,255,.08));
  box-shadow: inset 0 0 0 1px rgba(103, 200, 255, .15);
}
.engine-option.sales[aria-pressed="true"] { border-color: var(--violet); }
.engine-check {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: transparent;
}
.engine-option[aria-pressed="true"] .engine-check { background: var(--blue); color: var(--ink); }
.engine-option strong { display: block; margin-bottom: 6px; }
.engine-option small { color: var(--muted); }
.summary-panel {
  position: sticky;
  top: 90px;
  padding: 26px;
}
.summary-panel h3 { margin-bottom: 8px; }
.summary-panel > p { color: var(--muted); font-size: 14px; }
.tier-control { margin: 24px 0; }
.tier-control label { display: block; margin-bottom: 9px; color: var(--muted); font-size: 13px; }
.tier-control select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--ink);
  color: var(--ice);
}
.selected-list { min-height: 80px; margin: 0 0 22px; padding: 0; list-style: none; }
.selected-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.summary-total { margin: 22px 0; }
.summary-total small { display: block; color: var(--muted); }
.summary-total strong { display: block; font-size: 40px; letter-spacing: -.04em; }
.summary-total span { color: var(--muted); font-size: 14px; }
.summary-panel .button { width: 100%; }
.summary-footnote { margin: 14px 0 0; font-size: 12px !important; }

.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.system-package {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy);
}
.system-package.featured {
  border-color: rgba(103, 200, 255, .55);
  background: linear-gradient(145deg, rgba(103,200,255,.12), var(--navy) 48%);
}
.package-price { margin: 28px 0 16px; font-size: 44px; line-height: 1; }
.package-price span { color: var(--muted); font-size: 14px; }
.system-package p, .system-package li { color: var(--muted); }
.clean-list { padding: 0; list-style: none; }
.clean-list li { padding: 8px 0; }
.clean-list li::before { content: "✓"; margin-right: 10px; color: var(--mint); }

.integration-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  align-items: stretch;
}
.flow-item {
  position: relative;
  min-height: 180px;
  padding: 24px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--navy);
}
.flow-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -11px;
  z-index: 2;
  width: 11px;
  border-top: 1px solid var(--blue);
}
.flow-item strong { display: block; margin: 34px 0 10px; }
.flow-item p { color: var(--muted); font-size: 14px; }

.addon-rail {
  display: grid;
  grid-template-columns: 1.1fr .9fr 1fr;
  gap: 14px;
}
.addon {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy);
}
.addon:nth-child(2) { background: linear-gradient(160deg, rgba(139,114,255,.18), var(--navy) 70%); }
.addon p { color: var(--muted); }
.addon a { color: var(--blue); font-weight: 700; text-decoration: none; }
.rosie-addon { border-color: rgba(103,200,255,.45); background: linear-gradient(135deg, rgba(103,200,255,.08), rgba(139,114,255,.08)); }
.rosie-addon .mono { color: var(--mint); margin: 0 0 10px; }
.addon-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.addon-actions a:first-child { display: inline-flex; padding: 10px 16px; background: var(--blue); color: #081014; border-radius: 8px; }
.rosie-hero { background: radial-gradient(circle at 82% 22%, rgba(103,200,255,.16), transparent 34%), var(--deep); }

.sector-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.sector-tab {
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}
.sector-tab[aria-selected="true"] { border-color: var(--blue); background: rgba(103,200,255,.1); }
.sector-proof {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: clamp(32px, 7vw, 90px);
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy);
}
.sector-proof p, .sector-proof li { color: var(--muted); }
.sector-applications { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.application { padding: 18px; border-left: 2px solid var(--blue); background: rgba(255,255,255,.025); }
.application strong { display: block; margin-bottom: 5px; }

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}
.timeline-item { min-height: 240px; padding: 28px; background: var(--navy); }
.timeline-item strong { display: block; margin: 74px 0 10px; font-size: 24px; }
.timeline-item p { color: var(--muted); }

.faq-list { max-width: 860px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 24px 0; font-size: 20px; font-weight: 600; cursor: pointer; }
.faq-list details p { max-width: 720px; padding: 0 0 24px; color: var(--muted); }

.final-cta {
  padding: clamp(42px, 7vw, 80px);
  border: 1px solid rgba(103,200,255,.35);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 84% 20%, rgba(139,114,255,.26), transparent 22rem),
    linear-gradient(135deg, rgba(103,200,255,.13), rgba(11,22,40,.8));
}
.final-cta h2 { max-width: 850px; }

.system-footer { padding: 44px 0; border-top: 1px solid var(--line); }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.footer-grid p { color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 14px; }

.content-hero { padding: clamp(70px, 10vw, 140px) 0 72px; }
.content-hero h1 { font-size: clamp(44px, 7vw, 82px); }
.content-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(40px, 8vw, 100px); }
.content-grid aside { position: sticky; top: 110px; align-self: start; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 72px; font-size: clamp(30px, 4vw, 48px); }
.prose h3 { margin-top: 36px; }
.prose p, .prose li { color: var(--muted); }
.price-table { width: 100%; border-collapse: collapse; margin: 28px 0; }
.price-table th, .price-table td { padding: 16px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.price-table th { color: var(--blue); font: 600 11px/1.2 "IBM Plex Mono", monospace; text-transform: uppercase; }

.system-form {
  display: grid;
  gap: 16px;
  max-width: 760px;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy);
}
.field-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.system-form label { display: grid; gap: 8px; color: var(--muted); font-size: 14px; }
.system-form input, .system-form select, .system-form textarea {
  width: 100%;
  min-height: 50px;
  padding: 13px;
  border: 1px solid rgba(237,247,255,.28);
  border-radius: 12px;
  background: var(--ink);
  color: var(--ice);
}
.system-form textarea { min-height: 120px; resize: vertical; }
.system-form input:focus, .system-form select:focus, .system-form textarea:focus {
  outline: 3px solid rgba(103,200,255,.25);
  border-color: var(--blue);
}

:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
[hidden] { display: none !important; }

@media (max-width: 980px) {
  .nav-links { display: none; position: fixed; top: 72px; left: 12px; right: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #091526; flex-direction: column; align-items: stretch; box-shadow: 0 24px 80px rgba(0,0,0,.45); }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px; }
  .menu-toggle { display: block; }
  .hero-grid, .brain-proof, .content-grid { grid-template-columns: 1fr; }
  .brain-orbit { max-width: 480px; width: 100%; margin: 0 auto; }
  .builder-shell { grid-template-columns: 1fr; }
  .summary-panel { position: static; }
  .integration-flow { grid-template-columns: repeat(2, 1fr); }
  .flow-item:not(:last-child)::after { display: none; }
  .addon-rail { grid-template-columns: 1fr 1fr; }
  .sector-proof { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .content-grid aside { position: static; }
}

@media (max-width: 700px) {
  .wrap, .nav-inner { width: min(100% - 28px, var(--max)); }
  .hero { min-height: auto; }
  h1 { font-size: clamp(44px, 14vw, 64px); }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .steps, .systems-grid, .brain-output, .addon-rail, .timeline, .sector-applications, .field-grid { grid-template-columns: 1fr; }
  .step { min-height: 220px; }
  .step h3 { margin-top: 50px; }
  .map-stage { min-height: auto; grid-template-columns: 1fr; }
  .map-brain { grid-column: 1; }
  .integration-flow { grid-template-columns: 1fr; }
  .footer-grid { display: grid; }
  .brain-orbit { min-height: 300px; }
  .brain-core { width: 142px; height: 142px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}