:root {
  --bg: #f5f7fb;
  --bg-raised: #ffffff;
  --bg-muted: #edf1f7;
  --surface-glass: rgba(255, 255, 255, 0.78);
  --text: #0d1726;
  --text-soft: #526175;
  --text-faint: #758196;
  --line: rgba(13, 23, 38, 0.12);
  --line-strong: rgba(13, 23, 38, 0.21);
  --accent: #5b4dff;
  --accent-2: #087f72;
  --accent-soft: rgba(91, 77, 255, 0.11);
  --accent-glow: rgba(91, 77, 255, 0.24);
  --success: #087f72;
  --warning: #b65a12;
  --danger: #bb2d4b;
  --shadow-sm: 0 14px 40px rgba(34, 44, 70, 0.08);
  --shadow-lg: 0 30px 90px rgba(31, 42, 72, 0.15);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --container: 1200px;
  --header-height: 78px;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html[data-theme="dark"] {
  --bg: #07111f;
  --bg-raised: #0b1728;
  --bg-muted: #101e31;
  --surface-glass: rgba(9, 22, 38, 0.78);
  --text: #f3f7ff;
  --text-soft: #acb9cc;
  --text-faint: #7e8ba0;
  --line: rgba(210, 224, 246, 0.12);
  --line-strong: rgba(210, 224, 246, 0.22);
  --accent: #8d83ff;
  --accent-2: #5ee7d0;
  --accent-soft: rgba(141, 131, 255, 0.14);
  --accent-glow: rgba(83, 72, 255, 0.28);
  --success: #5ee7d0;
  --warning: #ffad6b;
  --danger: #ff7896;
  --shadow-sm: 0 18px 50px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 40px 100px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 36px);
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 15% 5%, var(--accent-soft), transparent 26rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color .25s ease, color .25s ease;
}

body.nav-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }

::selection { background: var(--accent); color: #fff; }

:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 4px;
  border-radius: 8px;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  transform: translateY(-180%);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  transition: transform .2s ease;
}

.skip-link:focus { transform: translateY(0); }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.section { position: relative; padding: 110px 0; }

.announcement {
  position: relative;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: var(--bg-muted);
  color: var(--text-soft);
  font-size: 13px;
}

.announcement__inner {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
}

.announcement p { margin: 0; }
.announcement strong { color: var(--text); }
.announcement a { color: var(--accent-2); font-weight: 750; }
.announcement a:hover { text-decoration: underline; text-underline-offset: 3px; }

.announcement__pulse,
.status-dot,
.contact__availability span {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 50%, transparent);
  animation: pulse 2.2s infinite;
}

.site-header {
  position: sticky;
  z-index: 45;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 76%, transparent);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .06);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: linear-gradient(145deg, var(--accent-soft), transparent 75%), var(--bg-raised);
  box-shadow: inset 0 1px rgba(255, 255, 255, .09), var(--shadow-sm);
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: -.04em;
}

.brand__copy { display: flex; flex-direction: column; line-height: 1.25; }
.brand__copy strong { font-size: 14px; letter-spacing: -.02em; }
.brand__copy small { margin-top: 2px; color: var(--text-faint); font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-left: auto;
}

.primary-nav a {
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
  transition: background-color .2s ease, color .2s ease;
}

.primary-nav a:hover { background: var(--accent-soft); color: var(--text); }
.primary-nav .nav-cta { margin-left: 6px; padding-inline: 16px; border: 1px solid var(--line-strong); background: var(--bg-raised); color: var(--text); box-shadow: var(--shadow-sm); }
.primary-nav .nav-cta:hover { border-color: var(--accent); background: var(--accent-soft); }

.theme-toggle,
.nav-toggle {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-raised);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.theme-toggle { margin-left: 2px; }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
html[data-theme="dark"] .theme-toggle__sun { display: none; }
html:not([data-theme="dark"]) .theme-toggle__moon { display: none; }
.nav-toggle { display: none; }

.hero {
  min-height: calc(100svh - var(--header-height) - 38px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 90px 0 100px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.5), transparent 78%);
  opacity: .22;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  pointer-events: none;
}
.hero__glow--one { width: 480px; height: 480px; top: 5%; right: 5%; background: radial-gradient(circle, var(--accent-glow), transparent 68%); }
.hero__glow--two { width: 380px; height: 380px; bottom: 0; left: -10%; background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 17%, transparent), transparent 68%); }

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(470px, .98fr);
  align-items: center;
  gap: 62px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .085em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow > span { width: 28px; height: 1px; background: currentColor; }

.hero h1,
.section-heading h2,
.experience__content h2,
.faq__intro h2,
.contact__content h2 {
  margin: 0;
  font-weight: 770;
  letter-spacing: -.055em;
  line-height: .98;
}

.hero h1 { max-width: 760px; font-size: clamp(3.3rem, 6vw, 5.8rem); text-wrap: balance; }
.hero h1::after { content: "_"; color: var(--accent-2); animation: blink 1.1s step-end infinite; }

.hero__lead {
  max-width: 690px;
  margin: 30px 0 0;
  color: var(--text-soft);
  font-size: clamp(1.05rem, 1.45vw, 1.24rem);
  line-height: 1.7;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 13px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 780;
  line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background-color .2s ease;
}

.button:hover { transform: translateY(-2px); }
.button--primary { background: var(--text); color: var(--bg); box-shadow: 0 16px 45px color-mix(in srgb, var(--text) 18%, transparent); }
.button--primary:hover { box-shadow: 0 22px 55px color-mix(in srgb, var(--text) 25%, transparent); }
.button--secondary { border-color: var(--line-strong); background: var(--surface-glass); color: var(--text); }
.button--secondary:hover { border-color: var(--accent); background: var(--accent-soft); }
.button--full { width: 100%; }

.hero__trust {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 680px;
  margin-top: 46px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero__trust div { padding: 0 20px; border-left: 1px solid var(--line); }
.hero__trust div:first-child { padding-left: 0; border-left: 0; }
.hero__trust strong { display: block; font-size: 17px; letter-spacing: -.03em; }
.hero__trust span { display: block; margin-top: 3px; color: var(--text-faint); font-size: 11px; font-weight: 650; }

.system-map {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--accent-soft), transparent 32%), var(--surface-glass);
  box-shadow: var(--shadow-lg), inset 0 1px rgba(255,255,255,.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transform: perspective(1200px) rotateY(-2.5deg) rotateX(1.5deg);
}

.system-map__topbar {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-raised) 62%, transparent);
  font-family: var(--font-mono);
  font-size: 11px;
}
.system-map__topbar > div { display: flex; align-items: center; gap: 9px; }
.system-map__topbar strong { font-weight: 700; }
.system-map__label { color: var(--text-faint); }

.system-map__canvas { padding: 14px; color: var(--accent-2); }
.system-map__canvas svg { width: 100%; overflow: visible; }
.map-lines path { fill: none; stroke: url(#lineGradient); stroke-width: 1.4; stroke-dasharray: 5 7; }
.map-pulses circle { fill: var(--accent-2); filter: drop-shadow(0 0 5px var(--accent-2)); }
.map-node rect { fill: var(--bg-raised); stroke: var(--line-strong); stroke-width: 1; }
.map-node circle { fill: var(--accent-soft); stroke: var(--accent-2); stroke-width: 1.2; }
.map-node text { fill: var(--text); font-family: var(--font-sans); font-size: 12px; font-weight: 750; }
.map-node .map-node__sub { fill: var(--text-faint); font-family: var(--font-mono); font-size: 8px; font-weight: 500; }
.map-node--core rect { fill: color-mix(in srgb, var(--accent) 18%, var(--bg-raised)); stroke: var(--accent); stroke-width: 1.5; }
.map-node--core circle { fill: color-mix(in srgb, var(--accent) 35%, transparent); stroke: var(--accent-2); }
.map-node--core path { fill: none; stroke: var(--accent-2); stroke-width: 1.5; stroke-linecap: round; }
.map-node--core text { font-family: var(--font-mono); font-size: 9px; letter-spacing: .04em; }

.system-map__footer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.system-map__footer > div { display: flex; gap: 10px; align-items: center; padding: 15px 16px; border-left: 1px solid var(--line); }
.system-map__footer > div:first-child { border-left: 0; }
.system-map__footer span { color: var(--accent-2); font-family: var(--font-mono); font-size: 10px; }
.system-map__footer p { margin: 0; color: var(--text-faint); font-size: 10px; line-height: 1.35; }
.system-map__footer strong { color: var(--text); }

.signal-strip { border-block: 1px solid var(--line); background: var(--bg-muted); }
.signal-strip__inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 18px; overflow: hidden; white-space: nowrap; }
.signal-strip span { color: var(--text-faint); font-family: var(--font-mono); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.signal-strip i { width: 4px; height: 4px; border-radius: 50%; background: var(--accent-2); }

.section-heading { max-width: 850px; margin-bottom: 54px; }
.section-heading h2,
.experience__content h2,
.faq__intro h2,
.contact__content h2 { font-size: clamp(2.6rem, 5vw, 5rem); text-wrap: balance; }
.section-heading > p:last-child { max-width: 720px; margin: 24px 0 0; color: var(--text-soft); font-size: 18px; }
.section-heading--split { max-width: none; display: grid; grid-template-columns: 1.15fr .7fr; align-items: end; gap: 80px; }
.section-heading--split > p { margin: 0 0 8px; }

.bento-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.bento-card {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--accent-soft), transparent 34%), var(--bg-raised);
  box-shadow: var(--shadow-sm);
}
.bento-card::after { content: ""; position: absolute; width: 180px; height: 180px; right: -90px; bottom: -100px; border: 1px solid var(--line); border-radius: 50%; box-shadow: 0 0 0 28px color-mix(in srgb, var(--line) 55%, transparent), 0 0 0 58px color-mix(in srgb, var(--line) 25%, transparent); opacity: .45; }
.bento-card--wide { grid-column: span 2; min-height: 390px; }
.bento-card--wide > p:not(.card-kicker), .bento-card--wide .feature-list { max-width: 680px; }
.bento-card__icon { position: absolute; top: 28px; right: 30px; color: var(--text-faint); font-family: var(--font-mono); font-size: 11px; }
.card-kicker { margin: 0 0 14px; color: var(--accent-2); font-family: var(--font-mono); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.bento-card h3 { max-width: 650px; margin: 0; font-size: clamp(1.8rem, 3vw, 3.2rem); letter-spacing: -.045em; line-height: 1.05; }
.bento-card > p:not(.card-kicker) { max-width: 540px; margin: 20px 0 0; color: var(--text-soft); }
.feature-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 30px 0 0; padding: 0; list-style: none; }
.feature-list li { padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--bg) 65%, transparent); color: var(--text-soft); font-size: 12px; font-weight: 650; }
.feature-list li::before { content: "✓"; margin-right: 8px; color: var(--accent-2); }
.card-meta { position: absolute; z-index: 1; right: 30px; bottom: 28px; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.card-meta span, .flow-chips span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg); color: var(--text-faint); font-family: var(--font-mono); font-size: 9px; }

.mini-terminal { position: relative; z-index: 1; display: grid; gap: 7px; margin-top: 30px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); }
.mini-terminal code { display: flex; gap: 14px; color: var(--text-soft); font-size: 11px; }
.mini-terminal span { min-width: 56px; color: var(--accent-2); }

.flow-chips { position: relative; z-index: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 34px; }
.flow-chips b { color: var(--accent); font-size: 12px; }

.meter-list { position: relative; z-index: 1; display: grid; gap: 16px; margin-top: 30px; }
.meter-list > div { display: grid; grid-template-columns: 115px 1fr; align-items: center; gap: 12px; }
.meter-list span { color: var(--text-faint); font-family: var(--font-mono); font-size: 9px; }
.meter-list i { height: 5px; overflow: hidden; border-radius: 999px; background: var(--bg-muted); }
.meter-list b { display: block; width: var(--meter); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }

.implementation-board { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-width: 720px; margin-top: 32px; }
.implementation-board > div { padding: 14px; border: 1px solid var(--line); border-radius: 13px; background: var(--bg); }
.implementation-board p { margin: 10px 0 4px; color: var(--text-faint); font-size: 11px; }
.implementation-board strong { font-size: 13px; }
.board-status { display: inline-block; padding: 4px 7px; border-radius: 5px; font-family: var(--font-mono); font-size: 8px; font-weight: 800; }
.board-status--now { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }
.board-status--next { background: color-mix(in srgb, var(--warning) 14%, transparent); color: var(--warning); }
.board-status--later { background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success); }

.method { border-block: 1px solid var(--line); background: var(--bg-muted); }
.method-steps { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.method-steps li { display: grid; grid-template-columns: 90px 1fr 180px; align-items: center; gap: 25px; padding: 28px 8px; border-bottom: 1px solid var(--line); }
.method-steps__number { color: var(--accent-2); font-family: var(--font-mono); font-size: 12px; }
.method-steps h3 { margin: 0; font-size: 24px; letter-spacing: -.035em; }
.method-steps p { max-width: 690px; margin: 6px 0 0; color: var(--text-soft); font-size: 14px; }
.method-steps__output { justify-self: end; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-raised); color: var(--text-faint); font-family: var(--font-mono); font-size: 9px; font-weight: 700; }

.collaboration-note { display: grid; grid-template-columns: 54px 1fr; gap: 22px; max-width: 940px; margin-top: 48px; padding: 28px; border: 1px solid var(--line-strong); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: var(--shadow-sm); }
.collaboration-note__icon { display: grid; width: 54px; height: 54px; place-items: center; border-radius: 16px; background: var(--accent-soft); color: var(--accent-2); }
.collaboration-note__icon svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.collaboration-note h3 { margin: 0; font-size: 20px; letter-spacing: -.025em; }
.collaboration-note p { margin: 8px 0 0; color: var(--text-soft); font-size: 14px; }

.experience__grid { display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: 80px; }
.experience__content p:not(.eyebrow) { color: var(--text-soft); font-size: 17px; }
.experience__content h2 { margin-bottom: 30px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--accent-2); font-size: 14px; font-weight: 780; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.capability-stack { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: var(--shadow-lg); font-family: var(--font-mono); }
.capability-stack__header, .capability-stack__footer { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: var(--bg-muted); color: var(--text-faint); font-size: 9px; letter-spacing: .06em; }
.capability-stack__header { border-bottom: 1px solid var(--line); }
.capability-stack__footer { border-top: 1px solid var(--line); }
.capability-stack__live { color: var(--accent-2); }
.capability-line { display: grid; grid-template-columns: 32px 145px 1fr; align-items: center; gap: 12px; padding: 20px; border-bottom: 1px solid var(--line); }
.capability-line:last-of-type { border-bottom: 0; }
.capability-line > span { color: var(--text-faint); font-size: 9px; }
.capability-line strong { font-family: var(--font-sans); font-size: 13px; letter-spacing: -.015em; }
.capability-line p { margin: 0; color: var(--text-soft); font-size: 10px; }

.audience-block { margin-top: 100px; padding: 40px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--bg-raised); }
.audience-block__heading { display: grid; grid-template-columns: 180px 1fr; gap: 30px; align-items: start; margin-bottom: 36px; }
.audience-block__heading h3 { max-width: 700px; margin: 0; font-size: clamp(2rem, 4vw, 3.6rem); letter-spacing: -.05em; line-height: 1.05; }
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.audience-grid article { position: relative; padding: 28px 24px 8px; border-left: 1px solid var(--line); }
.audience-grid article:first-child { border-left: 0; padding-left: 0; }
.audience-grid article:last-child { padding-right: 0; }
.audience-grid article > span { position: absolute; top: 25px; right: 20px; color: var(--accent-2); }
.audience-grid h4 { margin: 0 25px 10px 0; font-size: 17px; letter-spacing: -.025em; }
.audience-grid p { margin: 0; color: var(--text-soft); font-size: 12px; }

.engagements { border-block: 1px solid var(--line); background: var(--bg-muted); }
.engagement-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.engagement-card { position: relative; display: flex; min-height: 500px; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: var(--shadow-sm); }
.engagement-card--featured { border-color: var(--accent); background: linear-gradient(145deg, var(--accent-soft), transparent 36%), var(--bg-raised); transform: translateY(-12px); box-shadow: var(--shadow-lg); }
.engagement-card__badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); padding: 6px 11px; border-radius: 999px; background: var(--accent); color: white; font-family: var(--font-mono); font-size: 8px; font-weight: 800; letter-spacing: .08em; white-space: nowrap; }
.engagement-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.engagement-card__top span { color: var(--accent-2); font-family: var(--font-mono); }
.engagement-card__top p { margin: 0; color: var(--text-faint); font-family: var(--font-mono); font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.engagement-card h3 { margin: 0; font-size: 30px; letter-spacing: -.045em; line-height: 1.05; }
.engagement-card > p { color: var(--text-soft); font-size: 14px; }
.engagement-card ul { display: grid; gap: 10px; margin: 24px 0 30px; padding: 0; list-style: none; }
.engagement-card li { color: var(--text-soft); font-size: 13px; }
.engagement-card li::before { content: "→"; margin-right: 9px; color: var(--accent-2); }
.engagement-card__footer { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); }
.engagement-card__footer span { color: var(--text-faint); font-size: 10px; }
.engagement-card__footer strong { font-size: 12px; }

.faq__grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: start; }
.faq__intro { position: sticky; top: calc(var(--header-height) + 42px); }
.faq__intro p:not(.eyebrow) { margin: 24px 0; color: var(--text-soft); }
.accordion { border-top: 1px solid var(--line-strong); }
.accordion__item { border-bottom: 1px solid var(--line); }
.accordion__item h3 { margin: 0; }
.accordion__item button { display: grid; width: 100%; grid-template-columns: 1fr 24px; gap: 20px; align-items: center; padding: 25px 4px; border: 0; background: transparent; text-align: left; cursor: pointer; }
.accordion__item button span { font-size: 18px; font-weight: 720; letter-spacing: -.025em; }
.accordion__item button i { position: relative; width: 20px; height: 20px; }
.accordion__item button i::before, .accordion__item button i::after { content: ""; position: absolute; top: 50%; left: 50%; width: 14px; height: 1.5px; background: var(--accent-2); transform: translate(-50%, -50%); transition: transform .2s ease; }
.accordion__item button i::after { transform: translate(-50%, -50%) rotate(90deg); }
.accordion__item button[aria-expanded="true"] i::after { transform: translate(-50%, -50%) rotate(0); }
.accordion__panel { padding: 0 48px 24px 4px; }
.accordion__panel p { margin: 0; color: var(--text-soft); font-size: 14px; }

.contact { overflow: hidden; border-top: 1px solid var(--line); background: linear-gradient(135deg, var(--accent-soft), transparent 35%), var(--bg-muted); }
.contact::after { content: "HF"; position: absolute; right: -4vw; bottom: -12vw; color: var(--line); font-size: 35vw; font-weight: 900; line-height: 1; pointer-events: none; }
.contact__grid { position: relative; z-index: 1; display: grid; grid-template-columns: .95fr 1.05fr; gap: 90px; align-items: center; }
.contact__content p:not(.eyebrow):not(.contact__availability) { max-width: 620px; color: var(--text-soft); font-size: 17px; }
.contact__channels { display: grid; gap: 10px; margin-top: 30px; }
.contact__channels a { display: flex; max-width: 470px; align-items: center; gap: 14px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-raised); transition: border-color .2s ease, transform .2s ease; }
.contact__channels a:hover { border-color: var(--accent); transform: translateX(4px); }
.contact__channel-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 11px; background: var(--accent-soft); color: var(--accent-2); font-family: var(--font-mono); font-size: 12px; font-weight: 900; }
.contact__channels a > span:last-child { display: flex; flex-direction: column; }
.contact__channels small { color: var(--text-faint); font-size: 9px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.contact__channels strong { font-size: 13px; }
.contact__availability { display: flex; align-items: center; gap: 10px; margin-top: 26px; color: var(--text-soft); font-family: var(--font-mono); font-size: 10px; }

.contact-form { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius-md); background: var(--bg-raised); box-shadow: var(--shadow-lg); }
.contact-form__header { display: flex; align-items: center; justify-content: space-between; padding: 15px 18px; border-bottom: 1px solid var(--line); background: var(--bg-muted); }
.contact-form__header > div { display: flex; gap: 6px; }
.contact-form__header > div span { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.contact-form__header > div span:first-child { background: var(--danger); }
.contact-form__header > div span:nth-child(2) { background: var(--warning); }
.contact-form__header > div span:nth-child(3) { background: var(--success); }
.contact-form__header p { margin: 0; color: var(--text-faint); font-family: var(--font-mono); font-size: 9px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; padding: 28px 28px 20px; }
.form-grid__full { grid-column: span 2; }
.form-field { display: grid; align-content: start; gap: 7px; min-width: 0; }
.form-field > label { color: var(--text-soft); font-size: 11px; font-weight: 750; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--bg);
  color: var(--text);
  padding: 12px 13px;
  font-size: 13px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.form-grid select { min-height: 46px; }
.form-grid textarea { min-height: 124px; resize: vertical; }
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.form-grid input::placeholder, .form-grid textarea::placeholder { color: var(--text-faint); opacity: .8; }
.form-field.is-invalid input, .form-field.is-invalid select, .form-field.is-invalid textarea { border-color: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 13%, transparent); }
.form-field.is-valid input:not(:focus), .form-field.is-valid select:not(:focus), .form-field.is-valid textarea:not(:focus) { border-color: color-mix(in srgb, var(--success) 55%, var(--line)); }
.field-error { min-height: 15px; color: var(--danger); font-size: 10px; font-weight: 680; line-height: 1.4; }
.form-field__meta { display: flex; justify-content: space-between; gap: 15px; color: var(--text-faint); font-size: 9px; line-height: 1.4; }
.form-field__meta [data-message-count] { flex: 0 0 auto; font-family: var(--font-mono); }
.form-field__meta [data-message-count].is-near-limit { color: var(--warning); font-weight: 800; }
.form-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; opacity: 0 !important; pointer-events: none !important; }
.form-consent { display: grid; grid-template-columns: 18px 1fr; column-gap: 10px; row-gap: 5px; margin: 0 28px 18px; padding: 14px 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-muted); transition: border-color .2s ease, box-shadow .2s ease; }
.form-consent input { width: 17px; height: 17px; margin: 2px 0 0; accent-color: var(--accent); cursor: pointer; }
.form-consent label { color: var(--text-soft); font-size: 10px; line-height: 1.55; cursor: pointer; }
.form-consent .field-error { grid-column: 2; }
.form-consent.is-invalid { border-color: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 10%, transparent); }
.form-consent.is-valid { border-color: color-mix(in srgb, var(--success) 55%, var(--line)); }
.contact-form > .button { width: calc(100% - 56px); margin: 0 28px; }
.form-submit[disabled] { cursor: wait; opacity: .84; transform: none; }
.button__loader { display: none; width: 15px; height: 15px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: form-spin .7s linear infinite; }
.form-submit.is-loading .button__loader { display: inline-block; }
.form-status { margin: 14px 28px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px; font-size: 11px; font-weight: 680; line-height: 1.5; }
.form-status.is-success { border-color: color-mix(in srgb, var(--success) 55%, var(--line)); background: color-mix(in srgb, var(--success) 9%, var(--bg)); color: var(--success); }
.form-status.is-error { border-color: color-mix(in srgb, var(--danger) 55%, var(--line)); background: color-mix(in srgb, var(--danger) 8%, var(--bg)); color: var(--danger); }
.form-privacy { margin: 13px 28px 25px; color: var(--text-faint); font-size: 9px; line-height: 1.55; }

.site-footer { padding: 45px 0 20px; border-top: 1px solid var(--line); background: var(--bg); }
.site-footer__top { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; padding-bottom: 30px; }
.site-footer__top > p { margin: 0; color: var(--text-soft); font-size: 12px; }
.site-footer__bottom { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 25px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--text-faint); font-size: 10px; }
.site-footer__bottom p { margin: 0; }
.site-footer__disclaimer { text-align: center; }
.site-footer__bottom button { border: 0; background: transparent; color: var(--accent-2); cursor: pointer; font-size: 10px; font-weight: 700; }
.privacy-note { margin-top: 18px; padding: 18px; border: 1px solid var(--line); border-radius: 13px; background: var(--bg-muted); }
.privacy-note p { margin: 0; color: var(--text-soft); font-size: 11px; }

.toast { position: fixed; z-index: 100; left: 50%; bottom: 24px; min-width: 220px; transform: translate(-50%, 150%); padding: 12px 16px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--text); color: var(--bg); box-shadow: var(--shadow-lg); text-align: center; font-size: 12px; font-weight: 700; opacity: 0; transition: transform .25s ease, opacity .25s ease; }
.toast.is-visible { transform: translate(-50%, 0); opacity: 1; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 45%, transparent); } 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes form-spin { to { transform: rotate(360deg); } }

@media (max-width: 1050px) {
  .hero__grid { grid-template-columns: 1fr; gap: 60px; }
  .hero__content { max-width: 850px; }
  .system-map { max-width: 760px; transform: none; }
  .experience__grid, .contact__grid { grid-template-columns: 1fr; gap: 60px; }
  .experience__content { max-width: 850px; }
  .capability-stack { max-width: 850px; }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid article:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .audience-grid article:nth-child(4) { border-top: 1px solid var(--line); }
  .faq__grid { grid-template-columns: 1fr; gap: 55px; }
  .faq__intro { position: static; max-width: 700px; }
}

@media (max-width: 860px) {
  :root { --header-height: 70px; }
  .section { padding: 82px 0; }
  .announcement__inner { padding: 8px 0; align-items: flex-start; }
  .announcement__pulse { margin-top: 6px; }
  .brand__copy small { display: none; }
  .nav-toggle { display: grid; margin-left: auto; }
  .nav-toggle span:not(.sr-only) { display: block; width: 18px; height: 1.5px; margin: 2px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(1) { transform: translateY(5.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(3) { transform: translateY(-5.5px) rotate(-45deg); }
  .primary-nav { position: fixed; inset: var(--header-height) 0 auto; display: none; height: calc(100svh - var(--header-height)); flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 4px; padding: 26px 20px; background: var(--bg); border-top: 1px solid var(--line); }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 15px; font-size: 17px; }
  .primary-nav .nav-cta { margin: 10px 0 0; text-align: center; }
  .theme-toggle { margin-left: 0; }
  .hero { min-height: auto; padding-top: 72px; }
  .hero h1 { font-size: clamp(3rem, 12vw, 5rem); }
  .section-heading--split { grid-template-columns: 1fr; gap: 25px; }
  .feature-list { grid-template-columns: 1fr; max-width: 440px; }
  .card-meta { position: static; justify-content: flex-start; margin-top: 28px; }
  .method-steps li { grid-template-columns: 54px 1fr; }
  .method-steps__output { grid-column: 2; justify-self: start; }
  .engagement-grid { grid-template-columns: 1fr; max-width: 700px; }
  .engagement-card--featured { transform: none; }
  .site-footer__top, .site-footer__bottom { grid-template-columns: 1fr; text-align: left; }
  .site-footer__disclaimer { text-align: left; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 72px 0; }
  .announcement { font-size: 11px; }
  .announcement__inner { justify-content: flex-start; text-align: left; }
  .site-header__inner { gap: 10px; }
  .brand__mark { width: 38px; height: 38px; }
  .brand__copy strong { font-size: 12px; }
  .hero { padding: 58px 0 75px; }
  .hero__grid { gap: 45px; }
  .hero h1 { font-size: clamp(2.8rem, 14.5vw, 4.6rem); }
  .hero__lead { font-size: 1rem; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__trust { grid-template-columns: 1fr; gap: 15px; }
  .hero__trust div { padding: 0 0 15px; border-left: 0; border-bottom: 1px solid var(--line); }
  .hero__trust div:last-child { border-bottom: 0; }
  .system-map { border-radius: 21px; }
  .system-map__canvas { padding: 0; }
  .system-map__footer { grid-template-columns: 1fr; }
  .system-map__footer > div { border-left: 0; border-top: 1px solid var(--line); }
  .system-map__footer > div:first-child { border-top: 0; }
  .signal-strip__inner { justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .signal-strip__inner::-webkit-scrollbar { display: none; }
  .section-heading h2, .experience__content h2, .faq__intro h2, .contact__content h2 { font-size: clamp(2.45rem, 13vw, 4rem); }
  .section-heading > p:last-child { font-size: 16px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card, .bento-card--wide { grid-column: span 1; min-height: auto; padding: 27px; }
  .bento-card h3 { font-size: 2.15rem; }
  .implementation-board { grid-template-columns: 1fr; }
  .method-steps li { grid-template-columns: 38px 1fr; gap: 12px; padding: 24px 0; }
  .method-steps__output { grid-column: 2; }
  .collaboration-note { grid-template-columns: 1fr; padding: 24px; }
  .capability-line { grid-template-columns: 26px 1fr; gap: 8px; }
  .capability-line p { grid-column: 2; }
  .audience-block { margin-top: 65px; padding: 26px; }
  .audience-block__heading { grid-template-columns: 1fr; gap: 8px; }
  .audience-grid { grid-template-columns: 1fr; }
  .audience-grid article, .audience-grid article:first-child, .audience-grid article:nth-child(3) { padding: 24px 0; border-left: 0; border-top: 1px solid var(--line); }
  .audience-grid article:first-child { border-top: 0; }
  .audience-grid article > span { right: 2px; }
  .engagement-card { min-height: auto; padding: 26px; }
  .accordion__item button span { font-size: 16px; }
  .form-grid { grid-template-columns: 1fr; padding: 22px 22px 18px; }
  .form-grid__full { grid-column: span 1; }
  .form-consent { margin-inline: 22px; }
  .contact-form > .button { width: calc(100% - 44px); margin-inline: 22px; }
  .form-status, .form-privacy { margin-inline: 22px; }
  .site-footer__top { align-items: start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .map-pulses { display: none; }
}

@media print {
  .announcement, .site-header, .hero__actions, .theme-toggle, .nav-toggle, .contact-form, .site-footer button { display: none !important; }
  body { background: white; color: black; }
  .section { padding: 35px 0; }
  .hero { min-height: auto; }
  .system-map, .bento-card, .capability-stack, .engagement-card, .audience-block { box-shadow: none; }
}