:root {
  --ink: #f5f7f4;
  --muted: #a7b0aa;
  --dim: #75807a;
  --canvas: #0b0f0d;
  --surface: #111713;
  --surface-2: #171f1a;
  --line: #28312b;
  --mint: #9bf2ba;
  --mint-strong: #57d98a;
  --amber: #f6c56f;
  --red: #ff8279;
  --content: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 16%, rgba(87, 217, 138, 0.09), transparent 24rem),
    var(--canvas);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  color: #07110b;
  background: var(--mint);
  border-radius: 0.35rem;
  transform: translateY(-180%);
}

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

.site-header {
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  min-height: 5.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.15rem;
  height: 2.15rem;
  display: grid;
  place-items: center;
  color: #07110b;
  background: var(--mint);
  border-radius: 0.35rem 0.35rem 0.9rem 0.35rem;
  font-weight: 900;
}

.brand strong, .brand small { display: block; }
.brand strong { font-size: 0.9rem; letter-spacing: 0.03em; }
.brand small { color: var(--dim); font-size: 0.7rem; }

nav { display: flex; gap: 1.6rem; }
nav a { color: var(--muted); font-size: 0.82rem; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--mint); }
.menu-button { display: none; }

:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }

.hero, .section {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.hero {
  min-height: calc(100vh - 5.25rem);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(330px, 0.85fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
  padding-block: 5rem;
}

.eyebrow {
  margin: 0 0 1.25rem;
  color: var(--mint);
  font: 700 0.74rem/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow span {
  display: inline-block;
  width: 1.6rem;
  height: 1px;
  margin: 0 0.55rem 0.25rem 0;
  background: var(--mint);
}

h1, h2 { margin: 0; letter-spacing: -0.045em; line-height: 1.04; }
h1 { max-width: 13ch; font-size: clamp(3.35rem, 6.4vw, 6.8rem); font-weight: 680; }
h1 em { color: var(--mint); font-style: normal; }

.hero-lead {
  max-width: 63ch;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2.25rem; }
.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  font-size: 0.86rem;
  font-weight: 750;
  text-decoration: none;
}
.button.primary { color: #07110b; background: var(--mint); border-color: var(--mint); }
.button.primary:hover { background: #b1f8c8; }
.button.secondary:hover { color: var(--mint); border-color: var(--mint); }

.decision-panel {
  position: relative;
  min-height: 30rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(rgba(155, 242, 186, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 242, 186, 0.035) 1px, transparent 1px),
    var(--surface);
  background-size: 2.25rem 2.25rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.35);
}

.decision-panel::before {
  content: "";
  position: absolute;
  inset: 2.3rem;
  border: 1px solid rgba(155, 242, 186, 0.12);
  border-radius: 50%;
}

.panel-topline, .signal-row {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--dim);
  font: 600 0.63rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live-dot { color: var(--mint); }
.live-dot::before { content: ""; display: inline-block; width: 0.42rem; height: 0.42rem; margin-right: 0.45rem; background: var(--mint); border-radius: 50%; box-shadow: 0 0 0 0.3rem rgba(155, 242, 186, 0.1); }

.decision-core { position: relative; z-index: 1; text-align: center; }
.decision-label { color: var(--dim); font: 700 0.68rem/1 ui-monospace, monospace; letter-spacing: 0.18em; }
.decision-core strong { display: block; margin: 0.6rem 0; color: var(--mint); font: 750 clamp(2.2rem, 5vw, 3.8rem)/1 ui-monospace, monospace; }
.decision-core p { max-width: 29ch; margin: 0 auto; color: var(--muted); font-size: 0.82rem; }
.signal-row { justify-content: center; gap: 1rem; }
.signal { width: 0.45rem; height: 0.45rem; display: inline-block; border-radius: 50%; background: var(--mint); }
.signal.risk { background: var(--amber); }
.signal.evidence { background: #8ab7ff; }

.section { padding-block: clamp(5rem, 9vw, 8rem); }
.challenge { border-top: 1px solid var(--line); }
.section-heading.compact { max-width: 760px; }
.section-heading h2 { font-size: clamp(2.25rem, 5vw, 4.6rem); }
.section-heading > p:last-child { max-width: 57ch; margin: 1.5rem 0 0; color: var(--muted); }

.quality-flow {
  margin: 4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  overflow: hidden;
}

.quality-flow li { position: relative; min-height: 9.5rem; padding: 1rem; display: flex; flex-direction: column; justify-content: flex-end; background: var(--surface); border-right: 1px solid var(--line); }
.quality-flow li:last-child { border: 0; background: rgba(155, 242, 186, 0.08); }
.quality-flow li:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -0.55rem; top: 1rem; color: var(--mint); }
.quality-flow span { position: absolute; top: 1rem; left: 1rem; color: var(--dim); font: 600 0.62rem/1 ui-monospace, monospace; }
.quality-flow strong { font-size: 0.83rem; }
.quality-flow small { color: var(--dim); font-size: 0.7rem; }
.section-kicker {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 0.5fr);
  align-items: end;
  gap: 3rem;
}

.section-kicker > p {
  margin: 0 0 0.45rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.capabilities { border-top: 1px solid var(--line); }
.capability-grid { margin-top: 4rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.capability-card { min-height: 18rem; padding: 1.5rem; display: flex; flex-direction: column; color: var(--ink); background: var(--surface); text-decoration: none; }
.capability-card.featured { grid-column: span 2; background: linear-gradient(135deg, rgba(155, 242, 186, 0.1), transparent 55%), var(--surface-2); }
.capability-card:hover { background-color: var(--surface-2); }
.card-index { color: var(--mint); font: 650 0.63rem/1 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.capability-card h3 { margin: auto 0 0.85rem; font-size: clamp(1.25rem, 2.2vw, 2rem); line-height: 1.08; }
.capability-card p { margin: 0; color: var(--muted); font-size: 0.83rem; }
.capability-card > strong { margin-top: 1.35rem; color: var(--mint); font-size: 0.72rem; }

.case-study { background: #dce6df; color: #0b120e; }
.case-inner { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding-block: clamp(5rem, 10vw, 9rem); display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(25rem, 1.1fr); align-items: center; gap: clamp(3rem, 8vw, 8rem); }
.case-copy .eyebrow { color: #247647; }
.case-copy h2 { max-width: 15ch; font-size: clamp(2.5rem, 5vw, 5rem); }
.case-facts { margin-top: 2.5rem; border-top: 1px solid rgba(11, 18, 14, 0.18); }
.case-facts > div { padding: 1rem 0; display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem; border-bottom: 1px solid rgba(11, 18, 14, 0.18); }
.case-facts span { color: #247647; font: 750 0.65rem/1.5 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.case-facts p { margin: 0; font-size: 0.86rem; }
.text-link { display: inline-block; margin-top: 1.75rem; color: inherit; font-size: 0.8rem; font-weight: 800; text-underline-offset: 0.25rem; }

.case-evidence { min-width: 0; }
.evidence-frame { padding: 0.7rem; background: #111713; border-radius: 0.55rem; box-shadow: 0 2.5rem 5rem rgba(18, 35, 24, 0.22); }
.evidence-toolbar { height: 2.4rem; display: flex; align-items: center; gap: 0.38rem; padding: 0 0.55rem; }
.evidence-toolbar > span { width: 0.48rem; height: 0.48rem; border-radius: 50%; background: #445048; }
.evidence-toolbar small { margin-left: auto; color: #7d8b82; font: 600 0.58rem/1 ui-monospace, monospace; letter-spacing: 0.08em; }
.image-button { width: 100%; margin: 0; padding: 0; display: block; position: relative; color: inherit; background: none; border: 0; cursor: zoom-in; }
.image-button img { display: block; width: 100%; height: auto; }
.image-button > span { position: absolute; right: 0.65rem; bottom: 0.65rem; padding: 0.45rem 0.65rem; color: #f5f7f4; background: rgba(11, 15, 13, 0.84); border-radius: 0.25rem; font: 650 0.6rem/1 ui-monospace, monospace; }
.evidence-frame .image-button { min-height: 14rem; display: grid; place-items: center; padding: clamp(2rem, 5vw, 4rem); background: #fff; border-radius: 0.3rem; }
.case-steps { margin: 1rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; }
.case-steps li { padding: 0.9rem; color: #314139; border-left: 1px solid rgba(11, 18, 14, 0.18); font-size: 0.72rem; }
.case-steps li:first-child { border: 0; }
.case-steps span { display: block; margin-bottom: 0.35rem; color: #247647; font: 750 0.6rem/1 ui-monospace, monospace; }

.regression { border-bottom: 1px solid var(--line); }
.regression-grid { margin-top: 4rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.phase { min-height: 22rem; padding: 1.5rem; display: flex; flex-direction: column; border: 1px solid var(--line); background: var(--surface); }
.phase-id { color: var(--dim); font: 650 0.62rem/1 ui-monospace, monospace; letter-spacing: 0.1em; }
.phase-status { margin: auto 0; font: 800 clamp(3rem, 7vw, 5.5rem)/1 ui-monospace, monospace; color: var(--mint); }
.phase.red { border-color: rgba(255, 130, 121, 0.5); background: linear-gradient(150deg, rgba(255, 130, 121, 0.11), transparent 55%), var(--surface); }
.phase.red .phase-status { color: var(--red); }
.phase.restored { background: linear-gradient(150deg, rgba(155, 242, 186, 0.09), transparent 55%), var(--surface); }
.phase h3 { margin: 0 0 0.55rem; font-size: 1.25rem; }
.phase p { margin: 0; color: var(--muted); font-size: 0.8rem; }
.experiment-decision { margin-top: 1rem; padding: 1.1rem 1.25rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; background: var(--surface-2); border: 1px solid var(--line); color: var(--muted); font-size: 0.75rem; }
.experiment-decision strong { color: var(--ink); }
.experiment-decision a { margin-left: auto; color: var(--mint); }

.ai-section { background: #0e1812; border-block: 1px solid rgba(155, 242, 186, 0.12); }
.ai-inner { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(25rem, 1.2fr); align-items: center; gap: clamp(4rem, 9vw, 8rem); }
.ai-copy h2 { font-size: clamp(2.5rem, 5vw, 5rem); }
.ai-copy h2 em { color: var(--mint); font-style: normal; }
.ai-copy > p:not(.eyebrow) { max-width: 51ch; color: var(--muted); font-size: 0.9rem; }
.ai-flow { margin: 0; padding: 0; list-style: none; border: 1px solid var(--line); background: var(--canvas); }
.ai-flow li { position: relative; min-height: 4.2rem; padding: 0.8rem 1rem 0.8rem 3.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); }
.ai-flow li:last-child { border: 0; }
.ai-flow li::before { content: "↓"; position: absolute; left: 1.25rem; color: var(--mint); }
.ai-flow li:first-child::before { content: "01"; color: var(--dim); font: 650 0.62rem/1 ui-monospace, monospace; }
.ai-flow span { font-size: 0.84rem; font-weight: 750; }
.ai-flow small { color: var(--dim); font: 600 0.62rem/1.2 ui-monospace, monospace; }
.ai-flow .human { color: #07110b; background: var(--mint); }
.ai-flow .human::before, .ai-flow .human small { color: #1f5d37; }

.evidence-grid { margin-top: 4rem; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.evidence-card { min-height: 26rem; padding: 1.25rem; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); }
.evidence-card-head { display: flex; justify-content: space-between; gap: 1rem; color: var(--dim); font: 650 0.62rem/1 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.evidence-card-head strong { color: var(--mint); }
.evidence-card > p { color: var(--muted); font-size: 0.8rem; }
.evidence-card > a { margin-top: auto; color: var(--mint); font-size: 0.72rem; font-weight: 750; }
.gate-shot { margin-top: 1.5rem; overflow: hidden; border: 1px solid var(--line); border-radius: 0.3rem; }
.gate-shot img { aspect-ratio: 16 / 9; object-fit: cover; }
.metric-lines { margin: auto 0; border-top: 1px solid var(--line); }
.metric-lines > div { padding: 1rem 0; display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); color: var(--muted); font: 600 0.7rem/1 ui-monospace, monospace; }
.metric-lines strong { color: var(--ink); }
.security-check { margin: auto 0; padding: 2rem; background: #0b0f0d; border-left: 2px solid var(--mint); }
.security-check > span, .security-check > small { display: block; color: var(--dim); font: 600 0.65rem/1.5 ui-monospace, monospace; }
.security-check strong { display: block; margin: 1rem 0; font: 750 clamp(1.6rem, 4vw, 2.6rem)/1.1 ui-monospace, monospace; }
.security-check i { display: inline-block; width: 0.6rem; height: 0.6rem; margin-right: 0.4rem; background: var(--mint); border-radius: 50%; }
.impact-card blockquote { margin: auto 0; padding: 0; color: var(--ink); font-size: clamp(1.35rem, 3vw, 2.35rem); line-height: 1.2; letter-spacing: -0.035em; }
.classification { margin: 1.5rem 0; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.classification span { padding: 0.45rem 0.6rem; color: var(--muted); border: 1px solid var(--line); font: 650 0.58rem/1 ui-monospace, monospace; }

.technical { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: clamp(3rem, 9vw, 8rem); border-top: 1px solid var(--line); }
.technical h2 { font-size: clamp(2.7rem, 6vw, 5.5rem); }
.technical > div > p:last-child { color: var(--muted); }
.resource-list { border-top: 1px solid var(--line); }
.resource-list a { min-height: 4.5rem; display: grid; grid-template-columns: 2.5rem 1fr auto; align-items: center; gap: 1rem; color: var(--ink); border-bottom: 1px solid var(--line); text-decoration: none; font-size: 0.86rem; }
.resource-list span { color: var(--dim); font: 650 0.62rem/1 ui-monospace, monospace; }
.resource-list i { color: var(--mint); font-style: normal; }
.resource-list a:hover { padding-left: 0.5rem; color: var(--mint); }

footer { border-top: 1px solid var(--line); background: #070a08; }
.footer-inner { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; min-height: 12rem; display: grid; grid-template-columns: 0.8fr 1.4fr 0.8fr; align-items: center; gap: 2rem; color: var(--dim); font-size: 0.75rem; }
.footer-inner strong { color: var(--ink); }
.footer-inner p { margin: 0.25rem 0 0; }
.footer-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: var(--mint); }

.evidence-dialog { width: min(92vw, 1180px); max-height: 90vh; padding: 3.5rem 1rem 1rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 0.5rem; }
.evidence-dialog::backdrop { background: rgba(0, 0, 0, 0.82); backdrop-filter: blur(5px); }
.evidence-dialog img { display: block; max-width: 100%; max-height: calc(90vh - 5rem); margin: 0 auto; }
.dialog-close { position: absolute; top: 0.75rem; right: 0.75rem; padding: 0.5rem 0.75rem; color: var(--ink); background: var(--surface-2); border: 1px solid var(--line); border-radius: 0.3rem; cursor: pointer; }

.button.tertiary { color: var(--muted); background: var(--surface-2); border-color: var(--line); }
.button.tertiary:hover { color: var(--ink); border-color: var(--dim); }

.case-description { max-width: 54ch; color: #314139; font-size: 0.95rem; line-height: 1.6; margin: 1.25rem 0 2rem; }
.case-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 2rem; }
.case-btn { text-decoration: none; }

.evidence-cta-banner {
  margin-top: 3rem;
  padding: 2.25rem 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(135deg, rgba(155, 242, 186, 0.08), rgba(17, 23, 19, 0.95)), var(--surface-2);
  border: 1px solid rgba(155, 242, 186, 0.2);
  border-radius: 0.55rem;
}
.banner-content h3 { margin: 0 0 0.4rem; color: var(--ink); font-size: 1.35rem; }
.banner-content p { margin: 0; color: var(--muted); font-size: 0.88rem; max-width: 58ch; }

.contact-section { border-top: 1px solid var(--line); }
.contact-card {
  padding: clamp(2.5rem, 5vw, 4.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
}
.contact-copy h2 { font-size: clamp(2.2rem, 4.5vw, 3.8rem); margin-bottom: 1.25rem; }
.contact-copy p:not(.eyebrow) { color: var(--muted); font-size: 0.95rem; max-width: 48ch; margin-bottom: 2rem; }
.contact-methods { margin-top: 1.5rem; }
.contact-email {
  display: inline-flex;
  flex-direction: column;
  padding: 1rem 1.4rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.contact-email:hover { border-color: var(--mint); transform: translateY(-2px); }
.contact-email span { color: var(--mint); font: 600 0.65rem/1 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.4rem; }
.contact-email strong { font-size: 1.1rem; }

.section { padding-block: clamp(3.8rem, 6vw, 5.8rem); }

.step-counter { color: var(--mint); font-weight: 700; }
.decision-core.transitioning { opacity: 0.2; transform: scale(0.98); transition: opacity 0.18s ease, transform 0.18s ease; }
.decision-core { transition: opacity 0.18s ease, transform 0.18s ease; }
.text-amber { color: var(--amber) !important; }
.text-mint { color: var(--mint) !important; }
.text-blue { color: #8ab7ff !important; }

/* Problem Grid */
.problem-grid { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.problem-card {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid rgba(255, 130, 121, 0.25);
  border-radius: 0.5rem;
}
.problem-tag { color: var(--red); font: 700 0.62rem/1 ui-monospace, monospace; letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 0.85rem; }
.problem-card h3 { margin: 0 0 0.6rem; font-size: 1.2rem; color: var(--ink); }
.problem-card p { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.5; }

/* System Approach Grid */
.approach-section { border-top: 1px solid var(--line); }
.system-grid { margin-top: 3rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.system-card {
  padding: 1.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
}
.system-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; color: var(--mint); font: 700 0.65rem/1 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.system-card h3 { margin: 0 0 0.65rem; font-size: 1.15rem; color: var(--ink); }
.system-card p { margin: 0; color: var(--muted); font-size: 0.83rem; line-height: 1.5; }

/* Case Study Quotes */
.case-quote {
  margin: 1.5rem 0;
  padding: 0.85rem 1.25rem;
  background: rgba(36, 118, 71, 0.12);
  border-left: 3px solid #247647;
  color: #123e25;
  font-size: 1.05rem;
  font-weight: 750;
  border-radius: 0 0.35rem 0.35rem 0;
}

/* Evidence Showcase */
.evidence-showcase { margin-top: 3.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.featured-evidence { grid-column: span 3; }
.evidence-caption { margin-top: 0.85rem; color: var(--muted); font-size: 0.82rem; line-height: 1.45; }

/* Final Closing CTA */
.final-cta-section { border-top: 1px solid var(--line); background: radial-gradient(circle at 50% 50%, rgba(155, 242, 186, 0.06), transparent 30rem), var(--canvas); }
.final-cta-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.final-cta-inner h2 { font-size: clamp(2.3rem, 5vw, 4.2rem); margin-bottom: 1.25rem; }
.final-lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 2.25rem; }
.final-cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }

@media (max-width: 900px) {
  .site-header { position: relative; }
  .menu-button { display: inline-flex; padding: 0.55rem 0.75rem; color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: 0.3rem; }
  .site-header nav { position: absolute; z-index: 10; top: calc(100% + 0.5rem); right: 0; width: min(19rem, calc(100vw - 2rem)); padding: 1rem; display: none; flex-direction: column; gap: 0; background: var(--surface-2); border: 1px solid var(--line); box-shadow: 0 1rem 3rem rgba(0,0,0,0.4); }
  .site-header nav.open { display: flex; }
  .site-header nav a { padding: 0.75rem; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 3.5rem; padding-block: 4rem; }
  h1 { max-width: 12ch; }
  .decision-panel { min-height: 25rem; }
  .problem-grid, .system-grid { grid-template-columns: 1fr; }
  .evidence-showcase { grid-template-columns: 1fr; }
  .featured-evidence { grid-column: span 1; }
  .section-kicker, .case-inner, .ai-inner, .technical, .contact-card { grid-template-columns: 1fr; }
  .section-kicker { align-items: start; gap: 1.5rem; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-card.featured { grid-column: span 1; }
  .regression-grid { grid-template-columns: 1fr; }
  .phase { min-height: 15rem; }
  .footer-inner { grid-template-columns: 1fr; padding-block: 3rem; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .site-header { min-height: 4.5rem; }
  .brand small { display: none; }
  .hero { padding-block: 3rem; }
  h1 { font-size: clamp(2.5rem, 13vw, 3.6rem); }
  .hero-actions, .final-cta-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .decision-panel { min-height: 22rem; padding: 1rem; }
  .panel-topline { font-size: 0.56rem; }
  .signal-row { flex-wrap: wrap; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 15rem; }
  .case-inner { gap: 3rem; }
  .case-facts > div { grid-template-columns: 1fr; gap: 0.35rem; }
  .evidence-frame .image-button { min-height: 10rem; padding: 1.5rem; }
  .case-steps { grid-template-columns: 1fr; }
  .case-steps li { border-left: 0; border-top: 1px solid rgba(11, 18, 14, 0.18); }
  .experiment-decision { flex-direction: column; }
  .experiment-decision a { margin-left: 0; }
  .contact-links-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}