@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap");

:root {
  color-scheme: dark;
  --ink-950: #020617;
  --ink-900: #0f172a;
  --ink-850: #131d31;
  --ink-800: #1e293b;
  --ink-700: #334155;
  --ink-500: #94a3b8;
  --ink-400: #94a3b8;
  --ink-300: #cbd5e1;
  --ink-100: #f1f5f9;
  --white: #f8fafc;
  --cyan: #22d3ee;
  --cyan-soft: #67e8f9;
  --blue: #2563eb;
  --purple: #7c3aed;
  --green: #34d399;
  --amber: #fbbf24;
  --border: rgba(148, 163, 184, 0.2);
  --border-strong: rgba(103, 232, 249, 0.42);
  --surface: rgba(15, 23, 42, 0.72);
  --surface-solid: #0b1324;
  --max-width: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink-950);
  color: var(--ink-100);
  font-family: "Inter", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.16), transparent 32%),
    radial-gradient(circle at 88% 28%, rgba(124, 58, 237, 0.1), transparent 28%),
    var(--ink-950);
  content: "";
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  pointer-events: none;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.12;
}

p {
  margin-top: 0;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--cyan-soft);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  transform: translateY(-180%);
  border-radius: 8px;
  background: var(--cyan);
  color: var(--ink-950);
  font-weight: 700;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.94);
}

.nav-shell,
.container {
  width: min(calc(100% - 32px), var(--max-width));
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand img {
  display: block;
  width: 150px;
  height: 56px;
  object-fit: contain;
  object-position: left center;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.9rem;
}

.desktop-nav a,
.mobile-menu a {
  color: var(--ink-300);
  font-weight: 500;
  text-decoration: none;
}

.desktop-nav a:hover,
.mobile-menu a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--white);
}

.desktop-nav a[aria-current="page"] {
  border-bottom: 2px solid var(--cyan);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--ink-900);
  color: var(--white);
  cursor: pointer;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  padding: 112px 0 88px;
}

.hero::after {
  position: absolute;
  right: 5%;
  bottom: 40px;
  width: min(36vw, 460px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  content: "";
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 72px;
  align-items: end;
}

.eyebrow {
  margin-bottom: 20px;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 8px;
  color: var(--white);
  font-size: clamp(4.5rem, 13vw, 9.25rem);
  letter-spacing: -0.065em;
}

.hero-subtitle {
  margin-bottom: 36px;
  color: var(--ink-300);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  font-weight: 500;
}

.hero-statement {
  max-width: 760px;
  margin-bottom: 20px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 4.5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.hero-copy {
  max-width: 720px;
  margin-bottom: 32px;
  color: var(--ink-300);
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  background: var(--blue);
  color: var(--white);
}

.button--primary:hover {
  background: #1d4ed8;
}

.button--secondary {
  border-color: var(--border);
  background: rgba(15, 23, 42, 0.62);
  color: var(--ink-100);
}

.button--secondary:hover {
  border-color: var(--border-strong);
  color: var(--cyan-soft);
}

.doctrine {
  position: relative;
  padding: 28px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.78);
}

.doctrine::before {
  position: absolute;
  top: -1px;
  left: 24px;
  width: 72px;
  height: 2px;
  background: var(--cyan);
  content: "";
}

.doctrine-label {
  margin-bottom: 16px;
  color: var(--ink-400);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.doctrine blockquote {
  margin: 0;
  color: var(--white);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.45;
}

.section {
  padding: 88px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.section--solid {
  background: rgba(15, 23, 42, 0.5);
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.65fr) minmax(280px, 1fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 48px;
}

.section-number {
  display: block;
  margin-bottom: 12px;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.section-header h2,
.section-title {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.04em;
}

.section-header p {
  margin-bottom: 0;
  color: var(--ink-400);
  font-size: 1rem;
}

.domain-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.domain-card {
  min-height: 124px;
  padding: 24px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.domain-card span {
  display: block;
  margin-bottom: 28px;
  color: var(--ink-500);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
}

.domain-card h3 {
  margin-bottom: 0;
  font-size: 1rem;
  font-weight: 500;
}

.architecture-shell {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(2, 6, 23, 0.64);
}

.architecture-flow {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}

.arch-node {
  position: relative;
  min-height: 164px;
  padding: 18px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-solid);
}

.arch-node:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -15px;
  z-index: 2;
  color: var(--cyan-soft);
  content: "→";
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  transform: translateY(-50%);
}

.arch-node__step {
  display: block;
  margin-bottom: 20px;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.arch-node h3 {
  margin-bottom: 10px;
  font-size: 0.92rem;
}

.arch-node p {
  margin-bottom: 0;
  color: var(--ink-400);
  font-size: 0.75rem;
  line-height: 1.5;
}

.cross-layers {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 32px;
}

.cross-layers span {
  padding: 9px 10px;
  border-top: 1px solid var(--cyan);
  background: rgba(34, 211, 238, 0.06);
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.attack-surfaces {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.attack-surfaces h3 {
  grid-column: 1 / -1;
  margin-bottom: 8px;
  color: var(--ink-400);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.attack-surfaces p {
  display: flex;
  gap: 10px;
  margin-bottom: 0;
  padding: 9px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--ink-300);
  font-size: 0.82rem;
}

.attack-surfaces p::before {
  color: var(--amber);
  content: "+";
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.text-fallback {
  margin-top: 20px;
  color: var(--ink-500);
  font-size: 0.75rem;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.method-card {
  min-height: 236px;
  padding: 24px;
  background: var(--ink-950);
}

.method-card span {
  display: block;
  margin-bottom: 48px;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
}

.method-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.method-card p {
  margin-bottom: 0;
  color: var(--ink-400);
  font-size: 0.84rem;
}

.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.module-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.7);
}

.module-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.module-card__number {
  margin-bottom: 0;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
  text-transform: uppercase;
}

.status--available {
  border-color: rgba(52, 211, 153, 0.35);
  color: var(--green);
}

.status--in-development {
  border-color: rgba(251, 191, 36, 0.36);
  color: var(--amber);
}

.status--planned {
  color: var(--ink-400);
}

.module-card__title {
  margin-bottom: 12px;
  font-size: 1.45rem;
}

.module-card__summary {
  margin-bottom: 20px;
  color: var(--ink-400);
  font-size: 0.9rem;
}

.topic-list,
.plain-list,
.evidence-list,
.constraint-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 24px;
}

.topic-list li {
  padding: 5px 8px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 5px;
  color: var(--ink-300);
  font-size: 0.72rem;
}

.capability-gate {
  margin-top: auto;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.capability-gate__label {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.capability-gate p {
  margin-bottom: 0;
  color: var(--ink-300);
  font-size: 0.82rem;
}

.module-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 16px 0 0;
  color: var(--ink-500);
  font-size: 0.7rem;
}

.module-meta dd {
  margin: 0;
  color: var(--ink-400);
}

.module-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.text-link {
  color: var(--cyan-soft);
  font-weight: 600;
  text-underline-offset: 4px;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 64px;
  align-items: start;
}

.lead-copy {
  color: var(--ink-300);
  font-size: 1.05rem;
}

.plain-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
  margin-top: 28px;
}

.plain-list li,
.evidence-list li,
.constraint-list li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  color: var(--ink-300);
  font-size: 0.86rem;
}

.plain-list li::before,
.evidence-list li::before,
.constraint-list li::before {
  position: absolute;
  left: 0;
  color: var(--cyan-soft);
  content: "—";
}

.safety-note {
  padding: 24px;
  border-left: 3px solid var(--amber);
  background: rgba(251, 191, 36, 0.06);
}

.safety-note strong {
  display: block;
  margin-bottom: 10px;
  color: var(--amber);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.safety-note p {
  margin-bottom: 0;
  color: var(--ink-100);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.12rem;
}

.relationship-list {
  display: grid;
  gap: 8px;
  margin-top: 28px;
}

.relationship-list code {
  display: grid;
  grid-template-columns: minmax(90px, auto) minmax(112px, 1fr) minmax(120px, auto);
  gap: 12px;
  align-items: center;
  padding: 11px 14px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 6px;
  background: rgba(2, 6, 23, 0.55);
  color: var(--ink-100);
  font-size: 0.78rem;
}

.relationship-list code b {
  color: var(--cyan-soft);
  font-weight: 600;
  text-align: center;
}

.constraint-panel {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.constraint-panel h3 {
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.cert-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
}

.exam-format {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 28px;
}

.exam-format span {
  padding: 11px 12px;
  border-left: 2px solid var(--purple);
  background: rgba(124, 58, 237, 0.06);
  color: var(--ink-300);
  font-size: 0.78rem;
}

.evidence-panel {
  padding: 32px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.74);
}

.exam-principle {
  margin-bottom: 24px;
  color: var(--white);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.evidence-panel h3 {
  margin-bottom: 12px;
  color: var(--ink-400);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.availability-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(320px, 1fr);
  gap: 64px;
  align-items: start;
}

.availability-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
  list-style: none;
}

.availability-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.availability-item__label {
  color: var(--ink-300);
  font-size: 0.88rem;
}

.final-cta {
  padding: 104px 0;
  text-align: center;
}

.final-cta h2 {
  margin-bottom: 20px;
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  letter-spacing: -0.055em;
}

.final-cta p {
  max-width: 660px;
  margin: 0 auto 32px;
  color: var(--ink-400);
  font-size: 1.05rem;
}

.site-footer {
  padding: 44px 0;
  border-top: 1px solid var(--border);
  background: #01040c;
}

.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.footer-grid p {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--ink-500);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  color: var(--ink-400);
  font-size: 0.78rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cyan-soft);
}

@media (max-width: 1024px) {
  .hero-grid,
  .section-header,
  .split-grid,
  .cert-grid,
  .availability-wrap {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .domain-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .architecture-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .arch-node:nth-child(4)::after {
    display: none;
  }

  .method-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .desktop-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .mobile-menu:not([hidden]) {
    display: grid;
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 12px 0 20px;
    border-top: 1px solid var(--border);
  }

  .mobile-menu a {
    padding: 11px 4px;
  }

  .hero {
    padding: 76px 0 68px;
  }

  .hero-grid {
    gap: 48px;
  }

  .hero h1 {
    font-size: clamp(4rem, 27vw, 6.4rem);
  }

  .section {
    padding: 68px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .architecture-shell,
  .module-card,
  .constraint-panel,
  .evidence-panel {
    padding: 20px;
  }

  .architecture-flow {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .arch-node {
    min-height: auto;
  }

  .arch-node:not(:last-child)::after,
  .arch-node:nth-child(4)::after {
    top: auto;
    right: 18px;
    bottom: -16px;
    display: block;
    transform: rotate(90deg);
  }

  .cross-layers {
    grid-template-columns: 1fr;
  }

  .attack-surfaces,
  .curriculum-grid,
  .plain-list,
  .exam-format {
    grid-template-columns: 1fr;
  }

  .method-grid {
    grid-template-columns: 1fr;
  }

  .method-card {
    min-height: auto;
  }

  .method-card span {
    margin-bottom: 24px;
  }

  .relationship-list code {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .relationship-list code b {
    text-align: left;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .nav-shell,
  .container,
  .mobile-menu:not([hidden]) {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .brand img {
    width: 128px;
    height: 48px;
  }

  .domain-grid {
    grid-template-columns: 1fr;
  }

  .cta-row,
  .cta-row .button {
    width: 100%;
  }

  .module-card__header,
  .availability-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .module-meta {
    flex-direction: column;
    gap: 4px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* K8SEC.IO brand fidelity layer */
.kaos-neuron-bg {
  position: fixed;
  inset: 0;
  z-index: -4;
  overflow: hidden;
  background: radial-gradient(circle at 50% 34%, #1e1b4b 0%, #020617 64%);
  pointer-events: none;
}

#kaos-canvas {
  width: 100%;
  height: 100%;
  opacity: 0.58;
}

.kaos-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(22px);
  opacity: 0.22;
}

.kaos-orb--one {
  top: 12%;
  right: 7%;
  width: 280px;
  height: 280px;
  background: #7c3aed;
}

.kaos-orb--two {
  bottom: 14%;
  left: 4%;
  width: 230px;
  height: 230px;
  background: #2563eb;
}

body::before {
  z-index: -3;
  background:
    radial-gradient(circle at 15% 80%, rgba(129, 140, 248, 0.17), transparent 45%),
    radial-gradient(circle at 80% 20%, rgba(192, 132, 252, 0.14), transparent 42%);
}

body::after {
  z-index: -2;
  opacity: 0.7;
}

.site-header {
  position: fixed;
  width: 100%;
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 80px;
}

.desktop-nav {
  margin-left: auto;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-lab {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 10px;
  padding: 9px 17px;
  border-radius: 8px;
  background: #2563eb;
  color: #f8fafc;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 12px 28px -14px rgba(37, 99, 235, 0.9);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.nav-lab:hover {
  transform: translateY(-1px);
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  box-shadow: 0 18px 38px -16px rgba(124, 58, 237, 0.9);
}

.mobile-lab {
  margin-top: 8px;
  border-top: 1px solid var(--border);
  color: var(--cyan-soft) !important;
}

.hero {
  min-height: 780px;
  display: flex;
  align-items: center;
  padding-top: 166px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  top: 20%;
  left: 6%;
  width: 430px;
  height: 430px;
  border: 1px solid rgba(103, 232, 249, 0.08);
  border-radius: 50%;
  box-shadow: inset 0 0 80px rgba(37, 99, 235, 0.08), 0 0 110px rgba(124, 58, 237, 0.08);
  content: "";
}

.hero-grid {
  align-items: center;
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border: 1px solid rgba(34, 211, 238, 0.34);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.08);
  box-shadow: 0 0 28px rgba(34, 211, 238, 0.08);
}

.hero h1 {
  width: fit-content;
  margin-bottom: 4px;
  background: linear-gradient(90deg, #22d3ee, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 28px rgba(37, 99, 235, 0.24));
}

.hero-subtitle {
  color: #e2e8f0;
}

.hero-statement {
  color: #f8fafc;
}

.button {
  box-shadow: 0 10px 25px -15px rgba(37, 99, 235, 0.7);
}

.button--primary,
.button--lab {
  background: #2563eb;
  color: #f8fafc;
}

.button--primary:hover,
.button--lab:hover {
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  color: #f8fafc;
  box-shadow: 0 18px 45px -16px rgba(124, 58, 237, 0.75);
}

.button--lab {
  border-color: rgba(103, 232, 249, 0.26);
}

.button--secondary:hover {
  border-color: transparent;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
  box-shadow: 0 16px 38px -18px rgba(148, 163, 184, 0.6);
}

.hero-console {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 14px;
  background: #020617;
  box-shadow: 0 0 35px rgba(56, 189, 248, 0.15), 0 30px 60px -20px rgba(15, 23, 42, 0.9);
}

.hero-console::before {
  position: absolute;
  inset: -50%;
  z-index: -1;
  background: conic-gradient(from 220deg, transparent, rgba(56, 189, 248, 0.34), rgba(147, 51, 234, 0.58), transparent 48%);
  content: "";
  animation: console-sweep 11s linear infinite;
}

.console-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 15px;
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.36), rgba(15, 23, 42, 0.95));
}

.console-header small {
  margin-left: auto;
  color: #94a3b8;
  font-family: "Courier New", monospace;
  font-size: 0.68rem;
}

.console-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.console-dot--red { background: #ef4444; }
.console-dot--amber { background: #eab308; }
.console-dot--green { background: #22c55e; }

.console-body {
  padding: 28px;
  font-family: "Courier New", monospace;
}

.console-body > p {
  margin-bottom: 9px;
  color: #86efac;
  font-size: 0.78rem;
}

.console-prompt {
  color: #67e8f9;
}

.console-body .console-muted {
  color: #94a3b8;
}

.console-muted strong {
  color: #c4b5fd;
  font-family: inherit;
}

.console-body .doctrine-label {
  margin-top: 30px;
  margin-bottom: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  color: var(--cyan-soft);
}

.console-body blockquote {
  margin: 0;
  color: #f8fafc;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.18rem;
  font-weight: 500;
  line-height: 1.45;
}

.section {
  position: relative;
}

.section--solid {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.66), rgba(2, 6, 23, 0.74));
}

.domain-card,
.arch-node,
.module-card,
.constraint-panel,
.evidence-panel,
.method-card {
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.domain-card:hover,
.arch-node:hover,
.module-card:hover,
.constraint-panel:hover,
.evidence-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.72);
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.82), rgba(15, 23, 42, 0.72));
  box-shadow: 0 16px 40px -24px rgba(124, 58, 237, 0.72);
}

.architecture-shell {
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.11), rgba(2, 6, 23, 0.82) 54%);
  box-shadow: 0 24px 72px -52px rgba(34, 211, 238, 0.8);
}

.arch-node {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.method-grid {
  background: rgba(103, 232, 249, 0.16);
}

.method-card {
  background: linear-gradient(150deg, #071022, #020617);
}

.module-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.88), rgba(2, 6, 23, 0.72));
}

.safety-note,
.exam-format span {
  box-shadow: inset 0 0 36px rgba(251, 191, 36, 0.025);
}

.final-cta {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.13), transparent 40%),
    linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.5));
}

.final-cta::before {
  position: absolute;
  top: 0;
  right: 12%;
  left: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #22d3ee, #7c3aed, transparent);
  content: "";
  filter: drop-shadow(0 0 12px rgba(34, 211, 238, 0.65));
}

.final-cta h2 {
  background: linear-gradient(90deg, #f8fafc 10%, #67e8f9 48%, #c4b5fd 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@keyframes console-sweep {
  to { transform: rotate(360deg); }
}

@media (max-width: 980px) {
  .desktop-nav {
    gap: 18px;
  }

  .nav-lab {
    padding-inline: 13px;
  }
}

@media (max-width: 760px) {
  .nav-lab {
    display: none;
  }

  .site-header .mobile-menu:not([hidden]) {
    background: rgba(15, 23, 42, 0.98);
  }

  .hero {
    min-height: auto;
    padding-top: 130px;
  }

  .hero::before {
    width: 280px;
    height: 280px;
  }
}

@media (max-width: 480px) {
  .nav-shell {
    min-height: 70px;
  }

  .hero {
    padding-top: 110px;
  }

  .hero .eyebrow {
    align-items: flex-start;
    border-radius: 10px;
    line-height: 1.5;
  }

  .console-body {
    padding: 22px 18px;
  }

  .console-header small {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-console::before,
  .pulse-dot {
    animation: none !important;
  }
}