:root {
  --ink: #07131f;
  --ink-2: #0b1c2d;
  --ink-3: #10263b;
  --paper: #f4f7f8;
  --paper-2: #eaf0f2;
  --white: #ffffff;
  --text: #ecf3f7;
  --muted: #9eb0bd;
  --dark-text: #0d1b26;
  --dark-muted: #556974;
  --line: rgba(255,255,255,.11);
  --dark-line: rgba(7,19,31,.12);
  --mint: #6de7c3;
  --mint-2: #a3f6dd;
  --blue: #7aa9ff;
  --amber: #f1c56f;
  --danger: #ffb8a5;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max: 1180px;
  --shadow: 0 28px 80px rgba(0,0,0,.22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::selection { background: var(--mint); color: var(--ink); }
button, a { font: inherit; }
a { color: inherit; }
img, iframe, svg { max-width: 100%; }
svg { display: block; }
code {
  padding: .1rem .32rem;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 6px;
  background: rgba(255,255,255,.055);
  color: var(--mint-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .92em;
}

.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;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 999;
  padding: .7rem .9rem;
  border-radius: 10px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-150%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 2.4rem), var(--max)); margin-inline: auto; }
.section { padding: 7.2rem 0; position: relative; }
.section-light { background: var(--paper); color: var(--dark-text); }

.ambient { position: fixed; z-index: -1; border-radius: 999px; filter: blur(30px); pointer-events: none; opacity: .7; }
.ambient-one { width: 420px; height: 420px; top: -170px; right: -80px; background: radial-gradient(circle, rgba(109,231,195,.16), transparent 68%); }
.ambient-two { width: 520px; height: 520px; top: 420px; left: -220px; background: radial-gradient(circle, rgba(122,169,255,.11), transparent 70%); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: rgba(7,19,31,.72);
  backdrop-filter: blur(18px);
  transition: border-color .2s ease, background .2s ease;
}
.site-header.scrolled { border-color: var(--line); background: rgba(7,19,31,.9); }
.nav-row { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--mint), var(--blue));
  color: var(--ink);
  font-weight: 900;
  letter-spacing: -.02em;
  box-shadow: 0 8px 28px rgba(109,231,195,.12);
}
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: .95rem; letter-spacing: -.015em; }
.brand-copy small { margin-top: .22rem; color: var(--muted); font-size: .68rem; text-transform: uppercase; letter-spacing: .09em; }
.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a { color: #aebdc8; text-decoration: none; font-size: .87rem; font-weight: 700; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--white); }
.nav-links .nav-contact { padding: .58rem .86rem; border: 1px solid rgba(109,231,195,.25); border-radius: 999px; color: var(--mint-2); background: rgba(109,231,195,.05); }
.menu-button { display: none; width: 42px; height: 42px; padding: 9px; border: 1px solid var(--line); border-radius: 11px; background: transparent; color: var(--white); cursor: pointer; }
.menu-button span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; border-radius: 2px; background: currentColor; }

.hero { position: relative; padding: 8rem 0 3.6rem; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  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: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 78%);
  pointer-events: none;
}
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(360px, .86fr); gap: 4.5rem; align-items: center; }
.hero-copy { min-width: 0; }
.hero-label-row { display: flex; align-items: center; gap: .75rem; margin-bottom: 2.2rem; }
.project-pill { display: inline-flex; align-items: center; gap: .5rem; padding: .42rem .68rem; border: 1px solid rgba(109,231,195,.22); border-radius: 999px; background: rgba(109,231,195,.055); color: #c5f8e9; font-size: .74rem; font-weight: 750; }
.project-pill span { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(109,231,195,.08); }
.project-year { color: #718594; font-size: .76rem; font-weight: 800; letter-spacing: .08em; }
.eyebrow { margin: 0 0 .85rem; color: var(--mint); font-size: .76rem; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow.dark { color: #207c67; }
h1, h2, h3 { margin: 0; line-height: 1.05; letter-spacing: -.045em; }
h1 { max-width: 840px; font-size: clamp(3.45rem, 6.4vw, 6.55rem); font-weight: 780; }
h1 span { color: #718594; }
h2 { font-size: clamp(2.5rem, 4.7vw, 4.45rem); font-weight: 760; }
h3 { font-size: 1.35rem; }
.hero-lede { max-width: 760px; margin: 1.7rem 0 0; color: #b5c4cf; font-size: clamp(1.06rem, 1.8vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2.1rem; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: .6rem; padding: .78rem 1.05rem; border-radius: 12px; text-decoration: none; font-weight: 820; font-size: .9rem; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button-primary { background: var(--mint); color: #07131f; box-shadow: 0 12px 34px rgba(109,231,195,.12); }
.button-primary:hover { background: #85ebce; }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.025); color: var(--text); }
.button-ghost:hover { border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.045); }
.hero-boundary { max-width: 760px; display: grid; grid-template-columns: 26px 1fr; gap: .75rem; align-items: start; margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.hero-boundary svg { width: 22px; height: 22px; margin-top: .12rem; fill: none; stroke: var(--mint); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.hero-boundary p { margin: 0; color: #879aa8; font-size: .84rem; }
.hero-boundary strong { color: #b9c7d0; }

.hero-console { border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(180deg, rgba(16,38,59,.92), rgba(8,22,36,.94)); box-shadow: var(--shadow); transform: rotate(.3deg); }
.console-topbar { min-height: 46px; display: flex; align-items: center; gap: 1rem; padding: 0 1rem; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.022); color: #718594; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .72rem; }
.console-dots { display: flex; gap: 5px; }
.console-dots span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.18); }
.console-body { padding: 1.3rem; }
.console-kicker { margin: 0 0 1rem; color: #718594; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; font-weight: 850; }
.signal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.signal-card { min-height: 108px; padding: 1rem; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.027); }
.signal-value { display: block; color: var(--mint); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 1.7rem; font-weight: 850; letter-spacing: -.05em; }
.signal-label { display: block; margin-top: .32rem; color: var(--muted); font-size: .75rem; }
.console-list { display: grid; gap: .08rem; margin-top: 1rem; border-top: 1px solid var(--line); padding-top: .55rem; }
.console-list > div { display: grid; grid-template-columns: 10px 1fr; gap: .7rem; padding: .72rem .18rem; }
.status-dot { width: 7px; height: 7px; margin-top: .45rem; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 4px rgba(109,231,195,.07); }
.console-list p { margin: 0; }
.console-list strong { display: block; font-size: .84rem; }
.console-list small { display: block; margin-top: .12rem; color: #78909f; font-size: .73rem; }

.stack-strip { position: relative; display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 4.8rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.stack-strip span { padding: .45rem .68rem; border: 1px solid rgba(255,255,255,.08); border-radius: 999px; color: #8ea2b0; background: rgba(255,255,255,.015); font-size: .75rem; font-weight: 700; }

.section-heading { max-width: 820px; margin-bottom: 3rem; }
.section-heading h2 { max-width: 840px; }
.section-intro { margin: 1.2rem 0 0; color: var(--muted); font-size: 1.02rem; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr .8fr; gap: 4.2rem; align-items: end; }
.heading-copy p { margin: 0; color: var(--dark-muted); font-size: 1.03rem; }
.heading-copy p + p { margin-top: 1rem; }
.centered-heading { margin-inline: auto; text-align: center; }

.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.problem-card { padding: 1.35rem; border: 1px solid var(--dark-line); border-radius: var(--radius-md); background: rgba(255,255,255,.7); }
.icon-box { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 1.2rem; border-radius: 12px; background: #dfe9ea; color: #216955; }
.icon-box svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.problem-card h3 { color: var(--dark-text); font-size: 1.16rem; }
.problem-card p { margin: .72rem 0 0; color: var(--dark-muted); font-size: .9rem; }

.workflow-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.workflow-card { position: relative; min-height: 248px; display: flex; flex-direction: column; padding: 1.35rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: linear-gradient(180deg, rgba(16,38,59,.78), rgba(8,23,37,.82)); overflow: hidden; }
.workflow-card::after { content: ""; position: absolute; width: 140px; height: 140px; right: -70px; bottom: -70px; border-radius: 50%; background: radial-gradient(circle, rgba(122,169,255,.08), transparent 70%); }
.workflow-card.featured { border-color: rgba(109,231,195,.24); background: linear-gradient(180deg, rgba(16,43,57,.86), rgba(8,24,37,.88)); }
.workflow-card.wide { grid-column: span 2; }
.workflow-head { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; gap: .6rem; }
.scenario-tag { color: var(--mint); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .78rem; font-weight: 900; letter-spacing: .08em; }
.build-state { padding: .3rem .52rem; border-radius: 999px; font-size: .65rem; font-weight: 850; text-transform: uppercase; letter-spacing: .05em; white-space: nowrap; }
.build-state.built { border: 1px solid rgba(109,231,195,.2); background: rgba(109,231,195,.07); color: #bff5e5; }
.build-state.partial { border: 1px solid rgba(122,169,255,.2); background: rgba(122,169,255,.07); color: #c4d6ff; }
.build-state.blueprint { border: 1px solid rgba(241,197,111,.2); background: rgba(241,197,111,.06); color: #efd598; }
.workflow-card h3 { position: relative; z-index: 1; margin-top: 1.2rem; font-size: 1.42rem; }
.workflow-card p { position: relative; z-index: 1; margin: .78rem 0 0; color: var(--muted); font-size: .9rem; }
.mini-flow { position: relative; z-index: 1; display: flex; align-items: center; flex-wrap: wrap; gap: .45rem; margin-top: auto; padding-top: 1rem; color: #8296a4; font-size: .7rem; }
.mini-flow span { padding: .35rem .48rem; border-radius: 7px; background: rgba(255,255,255,.045); }
.mini-flow i { width: 14px; height: 1px; background: rgba(109,231,195,.32); }

.architecture-section { background: #081724; }
.architecture-heading { max-width: none; display: grid; grid-template-columns: 1fr .65fr; gap: 4rem; align-items: end; }
.architecture-heading > p { margin: 0; color: var(--muted); }
.architecture-shell { display: grid; grid-template-columns: 1fr 38px 1fr 38px 1fr 38px 1fr; align-items: center; gap: .25rem; padding: 1.15rem; border: 1px solid var(--line); border-radius: 26px; background: rgba(255,255,255,.018); }
.arch-stage { min-width: 0; display: grid; gap: .68rem; padding: .35rem; }
.arch-stage-label { margin-bottom: .1rem; color: #6f8492; font-size: .67rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.arch-item { min-height: 84px; display: flex; flex-direction: column; justify-content: center; padding: .95rem; border: 1px solid var(--line); border-radius: 13px; background: #0d2133; }
.primary-stage .arch-item { border-color: rgba(109,231,195,.22); background: linear-gradient(180deg, #102d38, #0d2433); }
.arch-item b { font-size: .85rem; }
.arch-item small { margin-top: .22rem; color: #78909f; font-size: .72rem; }
.arch-connector { display: flex; align-items: center; }
.arch-connector span { position: relative; width: 100%; height: 1px; background: linear-gradient(90deg, rgba(109,231,195,.12), rgba(109,231,195,.6)); }
.arch-connector span::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--mint); border-right: 1px solid var(--mint); transform: rotate(45deg); }
.reliability-bar { display: grid; grid-template-columns: 48px 1fr; gap: 1rem; align-items: center; margin-top: 1rem; padding: 1.1rem 1.25rem; border: 1px solid rgba(122,169,255,.16); border-radius: 16px; background: rgba(122,169,255,.045); }
.reliability-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: rgba(122,169,255,.09); color: #a8c5ff; }
.reliability-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.reliability-bar p { margin: .2rem 0 0; color: #8ea2b0; font-size: .84rem; }

.deep-card { display: grid; grid-template-columns: 1.06fr .94fr; gap: 3rem; align-items: center; padding: 2.6rem; border: 1px solid var(--dark-line); border-radius: 26px; background: #fff; box-shadow: 0 24px 60px rgba(7,19,31,.07); }
.deep-card + .deep-card { margin-top: 1.25rem; }
.deep-card-dark { background: var(--ink-2); color: var(--text); border-color: rgba(7,19,31,.08); }
.deep-card-accent { background: #dff3ec; border-color: rgba(32,124,103,.14); }
.deep-copy { position: relative; }
.deep-index { position: absolute; right: 0; top: -1.2rem; color: rgba(7,19,31,.07); font-size: 4.8rem; line-height: 1; font-weight: 900; letter-spacing: -.08em; }
.deep-card-dark .deep-index { color: rgba(255,255,255,.055); }
.deep-kicker { margin: 0 0 .55rem; color: #267662; font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .11em; }
.deep-card-dark .deep-kicker { color: var(--mint); }
.deep-copy h3 { max-width: 650px; font-size: clamp(1.8rem, 3vw, 2.65rem); }
.deep-copy > p:not(.deep-kicker) { margin: 1rem 0 0; color: var(--dark-muted); font-size: .95rem; }
.deep-card-dark .deep-copy > p:not(.deep-kicker) { color: #9eb0bd; }
.deep-facts { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin-top: 1.5rem; }
.deep-facts > div { padding: .8rem .88rem; border: 1px solid rgba(255,255,255,.1); border-radius: 12px; background: rgba(255,255,255,.025); }
.deep-facts span { display: block; color: #718594; font-size: .65rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
.deep-facts strong { display: block; margin-top: .2rem; font-size: .82rem; }
.light-facts > div { border-color: var(--dark-line); background: #f7f9f9; }
.light-facts span, .accent-facts span { color: #6a7e88; }
.accent-facts > div { border-color: rgba(32,124,103,.13); background: rgba(255,255,255,.48); }

.flow-visual { display: grid; gap: .38rem; padding: 1rem; border-radius: 19px; }
.dark-flow { border: 1px solid rgba(109,231,195,.16); background: #071824; }
.light-flow { border: 1px solid var(--dark-line); background: #f4f7f8; }
.flow-node { min-height: 66px; display: grid; grid-template-columns: 30px 1fr; grid-template-rows: auto auto; column-gap: .65rem; align-items: center; padding: .76rem; border: 1px solid rgba(255,255,255,.09); border-radius: 12px; background: rgba(255,255,255,.025); }
.light-flow .flow-node { border-color: var(--dark-line); background: #fff; color: var(--dark-text); }
.flow-node > span { grid-row: 1 / 3; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: rgba(109,231,195,.08); color: var(--mint); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .7rem; font-weight: 900; }
.light-flow .flow-node > span { background: #e0f2ed; color: #25735e; }
.flow-node b { font-size: .82rem; }
.flow-node small { color: #758b99; font-size: .68rem; }
.flow-visual > i { width: 1px; height: 10px; margin: 0 0 0 25px; background: rgba(109,231,195,.3); }
.flow-node.active { border-color: rgba(109,231,195,.25); }

.monitor-visual { border: 1px solid rgba(32,124,103,.16); border-radius: 19px; overflow: hidden; background: rgba(255,255,255,.7); color: var(--dark-text); box-shadow: 0 18px 50px rgba(32,124,103,.08); }
.monitor-header, .monitor-footer, .monitor-row { display: grid; align-items: center; padding: .8rem .95rem; }
.monitor-header { grid-template-columns: 1fr auto; border-bottom: 1px solid rgba(32,124,103,.12); color: #54736a; font-size: .68rem; font-weight: 850; text-transform: uppercase; letter-spacing: .1em; }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: #2f9e78; box-shadow: 0 0 0 5px rgba(47,158,120,.09); }
.monitor-row { grid-template-columns: 1.3fr .7fr auto; gap: .6rem; border-bottom: 1px solid rgba(32,124,103,.08); font-size: .72rem; }
.monitor-row span { font-weight: 760; }
.monitor-row b { color: #70877f; font-size: .67rem; font-weight: 700; }
.monitor-row em { padding: .26rem .46rem; border-radius: 999px; background: #daf0e8; color: #25735e; font-style: normal; font-size: .62rem; font-weight: 850; text-transform: uppercase; }
.monitor-footer { grid-template-columns: auto 1fr; gap: .6rem; background: rgba(255,255,255,.45); color: #5a7269; font-size: .68rem; }
.monitor-footer strong { color: #2e6656; }

.video-section { background: linear-gradient(180deg, #081724, #07131f); }
.video-layout { display: grid; grid-template-columns: .68fr 1.32fr; gap: 4rem; align-items: center; }
.video-copy p:not(.eyebrow) { color: var(--muted); }
.text-link { display: inline-flex; gap: .35rem; margin-top: .6rem; color: var(--mint); text-decoration: none; font-weight: 800; font-size: .86rem; }
.video-shell { border: 1px solid var(--line); border-radius: 22px; overflow: hidden; background: #06101a; box-shadow: var(--shadow); }
.video-toolbar { height: 42px; display: flex; align-items: center; gap: 6px; padding: 0 .9rem; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.video-toolbar > span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.16); }
.video-toolbar p { margin: 0 0 0 .5rem; color: #6f8492; font-size: .68rem; }
.video-frame { aspect-ratio: 16 / 9; background: #000; }
.video-frame iframe { width: 100%; height: 100%; border: 0; display: block; }

.qa-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 4.2rem; align-items: start; }
.qa-intro > p:not(.eyebrow) { color: var(--muted); }
.qa-note { margin-top: 1.4rem; padding: 1rem; border-left: 2px solid var(--amber); background: rgba(241,197,111,.06); color: #9eafba; font-size: .8rem; }
.qa-note strong { color: #e9d19e; }
.qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.qa-grid article { padding: 1.2rem; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.025); }
.qa-grid article > span { color: var(--mint); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .72rem; font-weight: 900; }
.qa-grid h3 { margin-top: .75rem; font-size: 1.08rem; }
.qa-grid p { margin: .55rem 0 0; color: var(--muted); font-size: .84rem; }

.boundaries-section { background: #0a1a29; }
.boundary-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; max-width: 980px; margin-inline: auto; }
.boundary-card { padding: 1.45rem; border-radius: var(--radius-md); }
.boundary-card.prove { border: 1px solid rgba(109,231,195,.2); background: rgba(109,231,195,.045); }
.boundary-card.limits { border: 1px solid rgba(241,197,111,.18); background: rgba(241,197,111,.035); }
.boundary-label { display: flex; align-items: center; gap: .65rem; font-weight: 850; }
.boundary-label span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: rgba(255,255,255,.045); }
.prove .boundary-label span { color: var(--mint); }
.limits .boundary-label span { color: var(--amber); }
.boundary-card ul { margin: 1rem 0 0; padding-left: 1.15rem; color: var(--muted); }
.boundary-card li + li { margin-top: .55rem; }

.role-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 5rem; align-items: start; }
.role-body p { margin: 0; color: var(--dark-muted); font-size: 1.03rem; }
.role-body p + p { margin-top: 1rem; }

.contact-section { padding-top: 6rem; }
.contact-card { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; align-items: center; padding: 2.2rem; border: 1px solid rgba(109,231,195,.18); border-radius: 28px; background: linear-gradient(135deg, rgba(16,48,57,.88), rgba(12,31,48,.9)); box-shadow: var(--shadow); }
.contact-card h2 { max-width: 760px; font-size: clamp(2.25rem, 4.2vw, 3.8rem); }
.contact-card p:not(.eyebrow) { max-width: 780px; color: var(--muted); }
.contact-actions { display: flex; flex-direction: column; gap: .7rem; align-items: stretch; }
.contact-actions .button { width: 100%; }
.contact-actions > p { margin: .45rem 0 0; text-align: center; font-size: .76rem; }

.footer { padding: 2rem 0; border-top: 1px solid var(--line); }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: #718594; font-size: .78rem; }
.footer-row > div { display: flex; flex-direction: column; }
.footer-row strong { color: #b8c6d0; }
.footer-row p { max-width: 520px; margin: 0; text-align: right; }

:focus-visible { outline: 3px solid rgba(109,231,195,.75); outline-offset: 3px; }

@media (max-width: 1020px) {
  .hero-layout { grid-template-columns: 1fr; gap: 2.8rem; }
  .hero-console { max-width: 720px; transform: none; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .workflow-map { grid-template-columns: 1fr 1fr; }
  .workflow-card.wide { grid-column: span 2; }
  .architecture-shell { grid-template-columns: 1fr; gap: .55rem; }
  .arch-connector { min-height: 24px; justify-content: center; }
  .arch-connector span { width: 1px; height: 24px; background: linear-gradient(rgba(109,231,195,.12), rgba(109,231,195,.6)); }
  .arch-connector span::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .deep-card { grid-template-columns: 1fr; gap: 2rem; }
  .video-layout, .qa-layout, .role-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-card { grid-template-columns: 1fr; }
  .contact-actions { max-width: 420px; }
}

@media (max-width: 820px) {
  .menu-button { display: block; }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 1.2rem;
    right: 1.2rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: .15rem;
    padding: .75rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(7,19,31,.98);
    box-shadow: 0 22px 50px rgba(0,0,0,.28);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .7rem .75rem; border-radius: 9px; }
  .nav-links a:hover { background: rgba(255,255,255,.035); }
  .nav-links .nav-contact { margin-top: .25rem; text-align: center; }
  .hero { padding-top: 6.3rem; }
  .split-heading, .architecture-heading { grid-template-columns: 1fr; gap: 1.5rem; }
  .workflow-card.wide { grid-column: auto; }
  .boundary-cards { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 1.3rem), var(--max)); }
  .section { padding: 5rem 0; }
  .hero { padding: 5.2rem 0 2.7rem; }
  .brand-copy small { display: none; }
  h1 { font-size: clamp(2.8rem, 14.5vw, 4.5rem); }
  h2 { font-size: clamp(2.15rem, 11vw, 3.2rem); }
  .hero-label-row { align-items: flex-start; flex-direction: column; gap: .45rem; margin-bottom: 1.7rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .signal-grid, .problem-grid, .workflow-map, .qa-grid, .deep-facts { grid-template-columns: 1fr; }
  .workflow-card { min-height: 0; }
  .deep-card { padding: 1.25rem; border-radius: 20px; }
  .deep-index { font-size: 3.7rem; top: -.4rem; }
  .monitor-row { grid-template-columns: 1fr auto; }
  .monitor-row b { display: none; }
  .video-toolbar p { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .contact-card { padding: 1.35rem; }
  .footer-row { flex-direction: column; align-items: flex-start; }
  .footer-row p { text-align: left; }
}

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