:root {
  --color-bg: #0f131b;
  --color-bg-elevated: #171d28;
  --color-bg-soft: #f4f3ef;
  --color-surface: #ffffff;
  --color-text-dark: #0f1724;
  --color-text-light: #e7edf7;
  --color-muted-dark: #9fb0c9;
  --color-muted-light: #49576d;
  --color-border-dark: rgba(149, 176, 215, 0.24);
  --color-border-light: #d4d8df;
  --color-accent: #64dec0;
  --color-accent-strong: #3bcba9;
  --color-focus: #ffd86e;

  --font-stack: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --size-h1: clamp(2.35rem, 4.4vw, 5rem);
  --size-h2: clamp(1.9rem, 3.3vw, 3.2rem);
  --size-h3: clamp(1.2rem, 1.7vw, 1.6rem);
  --size-body: 1.0625rem;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  --container: min(1180px, calc(100vw - 3rem));
  --container-narrow: min(860px, calc(100vw - 3rem));

  --radius-sm: 0.5rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.2rem;

  --shadow-card: 0 18px 40px rgba(11, 17, 29, 0.18);
  --shadow-dark: 0 24px 48px rgba(0, 0, 0, 0.42);

  --motion-fast: 180ms;
  --motion-mid: 300ms;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-stack);
  font-size: var(--size-body);
  line-height: 1.6;
  color: var(--color-text-light);
  background: var(--color-bg);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 10000;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-focus);
  color: #111;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus-visible {
  top: 1rem;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  position: relative;
  isolation: isolate;
  padding-block: clamp(4rem, 8vw, 8rem);
}

.section--dark {
  background: var(--color-bg);
  color: var(--color-text-light);
}

.section--light {
  background: var(--color-bg-soft);
  color: var(--color-text-dark);
}

.section--cta {
  background:
    radial-gradient(90% 110% at 10% 0%, rgba(100, 222, 192, 0.16) 0%, transparent 58%),
    radial-gradient(80% 90% at 100% 100%, rgba(112, 191, 255, 0.18) 0%, transparent 60%),
    #0e1420;
}

.eyebrow {
  margin: 0 0 var(--space-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.86;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.1;
}

h1 {
  font-size: var(--size-h1);
  max-width: 15ch;
}

h2 {
  font-size: var(--size-h2);
  max-width: 22ch;
}

h3 {
  font-size: var(--size-h3);
}

p {
  margin: 0;
}

.lead,
.section-copy {
  margin-top: var(--space-4);
  max-width: 62ch;
}

.section-narrow {
  width: var(--container-narrow);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(9, 13, 21, 0.86);
  border-bottom: 1px solid var(--color-border-dark);
}

.nav-shell {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 5.1rem;
}

.brand {
  margin-right: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark svg {
  width: 2.9rem;
  height: 1.7rem;
}

.brand-mark path,
.brand-mark circle {
  stroke: var(--color-accent);
  fill: var(--color-accent);
  stroke-width: 1.6;
}

.brand-word {
  font-size: 1.26rem;
}

.menu-toggle {
  border: 1px solid var(--color-border-dark);
  background: transparent;
  color: var(--color-text-light);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  font: inherit;
  display: none;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-item > a,
.nav-trigger {
  background: transparent;
  border: 0;
  color: var(--color-text-light);
  font: inherit;
  text-decoration: none;
  padding: 0.65rem 0.7rem;
  border-radius: 0.45rem;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.nav-item > a:hover,
.nav-item > a:focus-visible,
.nav-trigger:hover,
.nav-trigger:focus-visible,
.nav-trigger[aria-expanded="true"] {
  color: #ffffff;
  background: rgba(105, 221, 196, 0.11);
}

.nav-panel {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: 0;
  z-index: 80;
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem;
  border-radius: var(--radius-md);
  background: #101a29;
  border: 1px solid var(--color-border-dark);
  box-shadow: 0 16px 32px rgba(3, 8, 16, 0.42);
  max-width: min(calc(100vw - 1.5rem), 26rem);
}

.nav-panel[hidden] {
  display: none;
}

.nav-item--panel-what .nav-panel {
  width: clamp(13.75rem, 18vw, 16.25rem);
}

.nav-item--panel-solutions .nav-panel {
  width: clamp(18.75rem, 24vw, 22.5rem);
}

.nav-item--panel-industries .nav-panel {
  width: clamp(15.625rem, 20vw, 18.75rem);
}

.nav-item--panel-insights .nav-panel {
  width: clamp(15rem, 19vw, 17.5rem);
}

.nav-item--panel-right .nav-panel {
  left: auto;
  right: 0;
}

.panel-label {
  margin: 0.2rem 0 0.35rem;
  color: var(--color-muted-dark);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-panel a {
  text-decoration: none;
  color: #ecf3ff;
  font-size: 0.95rem;
  line-height: 1.4;
  padding: 0.5rem 0.56rem;
  border-radius: 0.42rem;
}

.nav-panel a:hover,
.nav-panel a:focus-visible {
  background: rgba(100, 222, 192, 0.14);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid transparent;
  background: var(--color-accent);
  color: #0b1321;
  font-weight: 700;
  transition: transform var(--motion-fast) ease, background var(--motion-fast) ease;
}

.button:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
}

.button--ghost {
  color: var(--color-text-light);
  background: transparent;
  border-color: var(--color-border-dark);
}

.button--ghost:hover {
  background: rgba(100, 222, 192, 0.13);
  color: var(--color-text-light);
}

.button--small {
  padding: 0.65rem 1rem;
  font-size: 0.92rem;
}

.hero {
  overflow: clip;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 520px);
  align-items: center;
  gap: clamp(2rem, 4vw, 5rem);
}

.brand-statement {
  margin-top: var(--space-4);
  color: var(--color-muted-dark);
  font-weight: 600;
}

.cta-row {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

.trace-grid,
.trace-section {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.trace-grid::before,
.trace-grid::after,
.trace-section::before,
.trace-section::after {
  content: "";
  position: absolute;
  inset: 0;
}

.trace-grid::before {
  background-image:
    linear-gradient(rgba(110, 155, 220, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 155, 220, 0.16) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent);
}

.trace-grid::after {
  background:
    radial-gradient(circle at 25% 25%, rgba(100, 222, 192, 0.2), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(112, 191, 255, 0.2), transparent 45%);
}

.trace-grid--dense::before {
  background-size: 38px 38px;
  opacity: 0.75;
}

.trace-section::before {
  background: linear-gradient(to right, transparent 0%, rgba(100, 222, 192, 0.08) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: traceSweep 9s linear infinite;
}

.trace-section::after {
  background-image: radial-gradient(circle at 30% 45%, rgba(112, 191, 255, 0.18), transparent 34%);
}

.hero-visual {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(140deg, rgba(100, 222, 192, 0.09), rgba(85, 135, 220, 0.09)),
    #101725;
  box-shadow: var(--shadow-dark);
  padding: clamp(1rem, 2vw, 1.5rem);
}

.topology {
  width: 100%;
  height: auto;
}

.trace-paths path {
  fill: none;
  stroke: url(#traceStroke);
  stroke-width: 1.5;
  opacity: 0.65;
  stroke-dasharray: 8 14;
  animation: flow 16s linear infinite;
}

.trace-nodes circle {
  fill: #b0f8e8;
  filter: drop-shadow(0 0 6px rgba(98, 230, 199, 0.75));
  animation: pulse 4s ease-in-out infinite;
}

.trace-nodes circle:nth-child(3n) {
  animation-delay: -1s;
}

.trace-nodes circle:nth-child(2n) {
  animation-delay: -2s;
}

.capability-stack {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-3);
}

.capability-block {
  display: grid;
  gap: 0.65rem;
  padding: clamp(1.1rem, 2.2vw, 1.7rem);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border-dark);
  border-right: 1px solid var(--color-border-dark);
  border-bottom: 1px solid var(--color-border-dark);
}

.capability-columns {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.capability-columns article {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--color-border-dark);
  background: rgba(12, 19, 30, 0.5);
}

.capability-columns ul {
  margin: 1rem 0 0;
  padding-left: 1.05rem;
  display: grid;
  gap: 0.35rem;
}

.framework-list {
  counter-reset: framework;
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.framework-list li {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.framework-list li::before {
  counter-increment: framework;
  content: counter(framework);
  width: 2rem;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 700;
  color: var(--color-text-dark);
  background: linear-gradient(135deg, #b8ecdf, #82c3f7);
}

.framework-list h3 {
  margin-bottom: 0.45rem;
}

.framework-list p {
  color: var(--color-muted-light);
}

.outcome-grid {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.outcome-grid article {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.03);
}

.outcome-grid h3 {
  font-size: 1.05rem;
}

.delta {
  font-size: 2rem;
  margin-top: 0.35rem;
  color: var(--color-accent);
  font-weight: 700;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: var(--space-5);
  align-items: start;
}

.feature-list {
  margin: var(--space-4) 0 var(--space-5);
  padding-left: 1.15rem;
  display: grid;
  gap: 0.5rem;
}

.future-module {
  padding: var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: #fdfdfb;
}

.future-module p {
  margin-top: 0.7rem;
  color: var(--color-muted-light);
}

.module-shell {
  margin-top: var(--space-4);
  border: 1px dashed #95a2b8;
  border-radius: var(--radius-sm);
  min-height: 11rem;
  display: grid;
  place-items: center;
  text-align: center;
  color: #65748e;
  padding: var(--space-3);
}

.industry-grid,
.resource-grid,
.principles-grid {
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
}

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

.industry-grid article,
.principles-grid article {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-4);
}

.industry-grid p,
.principles-grid p {
  margin-top: 0.55rem;
  color: var(--color-muted-dark);
}

.subsection-title {
  margin-top: var(--space-6);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
}

.resource-grid {
  margin-top: var(--space-4);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.resource-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-card);
}

.resource-card img {
  aspect-ratio: 16/9;
  object-fit: cover;
}

.resource-card h4,
.resource-card p,
.resource-card a {
  padding-inline: var(--space-3);
}

.resource-card h4 {
  margin-top: var(--space-3);
  font-size: 1.1rem;
}

.resource-card p {
  margin-top: 0.55rem;
  color: var(--color-muted-light);
}

.resource-card a {
  margin-top: auto;
  margin-bottom: var(--space-3);
  padding-top: var(--space-3);
  color: #0d4d83;
  font-weight: 700;
  text-decoration-thickness: 2px;
}

.future-topics {
  margin-top: var(--space-3);
  padding-left: 1.1rem;
  display: grid;
  gap: 0.5rem;
}

.future-topics li {
  color: var(--color-muted-light);
}

.muted {
  margin-top: var(--space-3);
  color: var(--color-muted-light);
}

.about-layout {
  display: grid;
  gap: var(--space-5);
}

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

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 430px);
  gap: var(--space-5);
  align-items: start;
}

.contact-form {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: rgba(13, 20, 31, 0.9);
  padding: var(--space-4);
  display: grid;
  gap: 0.75rem;
}

.contact-form h3 {
  margin-bottom: 0.1rem;
}

.contact-form p {
  color: var(--color-muted-dark);
  margin-bottom: 0.5rem;
}

.contact-form label {
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--color-border-dark);
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.04);
  color: #f4f8ff;
  font: inherit;
  padding: 0.7rem 0.75rem;
}

.contact-form textarea {
  resize: vertical;
  min-height: 7rem;
}

.contact-form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  margin-top: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.form-note {
  margin-top: var(--space-1);
  font-size: 0.92rem;
  color: var(--color-muted-dark);
}

.form-note.form-note--accent {
  color: #b8f5e6;
}

.site-footer {
  border-top: 1px solid var(--color-border-dark);
  background: #0b111b;
}

.footer-layout {
  min-height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 0.95rem;
}

.footer-layout a {
  color: var(--color-muted-dark);
}

@keyframes flow {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -400; }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.75;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes traceSweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

@media (max-width: 1080px) {
  .hero-layout,
  .feature-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 700px;
  }

  .resource-grid,
  .outcome-grid,
  .capability-columns,
  .principles-grid,
  .industry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .container,
  .section-narrow {
    width: min(100vw - 1.6rem, 100%);
  }

  .section {
    padding-block: var(--space-7);
  }

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

  .primary-nav {
    position: fixed;
    top: 5.1rem;
    left: 0;
    right: 0;
    background: #0f1622;
    border-bottom: 1px solid var(--color-border-dark);
    padding: var(--space-3);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    max-height: calc(100vh - 5.1rem);
    overflow: auto;
  }

  .site-header.is-open .primary-nav {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
  }

  .nav-item > a,
  .nav-trigger {
    width: 100%;
    justify-content: space-between;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.75rem;
  }

  .nav-panel {
    position: static;
    width: 100%;
    max-width: none;
    margin-top: 0.35rem;
  }

  .button--small {
    width: 100%;
  }

  .capability-columns,
  .resource-grid,
  .outcome-grid,
  .principles-grid,
  .industry-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0ms !important;
  }
}