:root {
  color-scheme: dark;
  --bg: #020713;
  --bg-deep: #00030a;
  --panel: #071120;
  --panel-soft: #0b1628;
  --line: rgba(140, 196, 255, 0.18);
  --line-strong: rgba(75, 212, 255, 0.45);
  --text: #f4f8ff;
  --muted: #aebbd3;
  --dim: #7f8ca5;
  --blue: #2f7dff;
  --cyan: #46d8ff;
  --violet: #9f7cff;
  --white: #ffffff;
  --warning: #f4d47a;
  --radius: 8px;
  --content-max: 1180px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(72, 216, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 216, 255, 0.028) 1px, transparent 1px),
    var(--bg);
  background-size: 56px 56px, 56px 56px, auto;
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(180deg, rgba(47, 125, 255, 0.1), transparent 32rem),
    linear-gradient(120deg, rgba(159, 124, 255, 0.08), transparent 34rem);
}

button,
input {
  font: inherit;
}

button {
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

canvas {
  max-width: 100%;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(70, 216, 255, 0.64);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(140, 196, 255, 0.12);
  background: rgba(2, 7, 19, 0.82);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark span:last-child {
  overflow-wrap: anywhere;
}

.brand-symbol {
  flex: 0 0 auto;
  width: 0.85rem;
  height: 0.85rem;
  border: 1px solid var(--cyan);
  box-shadow: 0 0 20px rgba(70, 216, 255, 0.45);
  transform: rotate(45deg);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.site-nav a {
  padding: 0.45rem 0.65rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.86rem;
}

.site-nav a:focus-visible,
.site-nav a:hover {
  border-color: var(--line);
  color: var(--white);
}

.section-shell {
  width: min(var(--content-max), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(22rem, 1.08fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  min-height: calc(100vh - 4.25rem);
  padding-top: clamp(3rem, 6vw, 5rem);
}

.hero-copy {
  min-width: 0;
  max-width: 42rem;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  max-width: 12ch;
  margin-bottom: 1rem;
  color: var(--white);
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

h2 {
  margin-bottom: 1rem;
  color: var(--white);
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.04;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

h3 {
  margin-bottom: 0.75rem;
  color: var(--white);
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.subtitle {
  margin-bottom: 1.2rem;
  color: var(--cyan);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 650;
}

.hero-intro,
.section-heading p {
  color: var(--muted);
  font-size: clamp(1rem, 1.35vw, 1.12rem);
}

.hero-intro {
  max-width: 38rem;
  margin-bottom: 1rem;
}

.metaphor-note,
.panel-note,
.advice-note,
.visual-caption {
  color: var(--dim);
  font-size: 0.92rem;
}

.metaphor-note {
  max-width: 35rem;
  margin-bottom: 1.7rem;
}

.primary-button {
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(70, 216, 255, 0.7);
  border-radius: var(--radius);
  background: #071b31;
  color: var(--white);
  cursor: pointer;
  font-weight: 800;
  box-shadow: 0 0 28px rgba(47, 125, 255, 0.22);
}

.primary-button:focus-visible,
.primary-button:hover {
  background: #0a2440;
}

.hero-visual,
.lab-visual {
  position: relative;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(rgba(70, 216, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(70, 216, 255, 0.035) 1px, transparent 1px),
    #020814;
  background-size: 28px 28px;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 24px 80px rgba(0, 0, 0, 0.3);
}

.hero-visual {
  min-height: clamp(24rem, 52vw, 42rem);
  aspect-ratio: 1 / 1.05;
}

.hero-visual canvas,
.lab-visual canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.visual-caption {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  padding: 0.85rem;
  border-top: 1px solid rgba(140, 196, 255, 0.16);
  background: rgba(2, 7, 19, 0.78);
}

.split-section {
  border-top: 1px solid rgba(140, 196, 255, 0.12);
}

.section-heading {
  max-width: 53rem;
  margin-bottom: 2rem;
}

.section-heading.narrow {
  max-width: 48rem;
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 23rem);
  gap: 1.2rem;
  align-items: stretch;
}

.lab-layout > *,
.action-layout > * {
  min-width: 0;
}

.lab-visual {
  min-height: clamp(24rem, 52vw, 38rem);
  aspect-ratio: 16 / 10;
}

.lab-status {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(70, 216, 255, 0.3);
  border-radius: var(--radius);
  background: rgba(2, 7, 19, 0.78);
  color: var(--white);
  font-weight: 800;
}

.control-panel,
.priority-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 17, 32, 0.82);
}

.control-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
  padding: 1.25rem;
}

.lab-instruction {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
}

.guided-scenarios {
  display: grid;
  gap: 0.85rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid rgba(140, 196, 255, 0.14);
}

.guided-scenarios h3 {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}

.scenario-intro {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.scenario-options {
  display: grid;
  gap: 0.55rem;
}

.scenario-button {
  min-height: 2.45rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(140, 196, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 750;
  text-align: left;
}

.scenario-button:focus-visible,
.scenario-button:hover {
  border-color: var(--line-strong);
  background: rgba(70, 216, 255, 0.075);
  color: var(--white);
}

.scenario-button[aria-pressed="true"] {
  border-color: rgba(70, 216, 255, 0.72);
  background: rgba(70, 216, 255, 0.12);
  box-shadow: inset 3px 0 0 var(--cyan);
  color: var(--white);
}

.scenario-explanation {
  display: grid;
  gap: 0.3rem;
  padding-left: 0.8rem;
  border-left: 1px solid rgba(159, 124, 255, 0.45);
}

.scenario-explanation h4 {
  margin: 0;
  color: var(--white);
  font-size: 0.92rem;
  line-height: 1.25;
}

.scenario-explanation p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.control-group label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 750;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--cyan);
  cursor: pointer;
}

input[type="range"]:focus-visible {
  outline-offset: 4px;
}

.secondary-button {
  align-self: flex-start;
  min-height: 2.55rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(140, 196, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
  color: var(--muted);
  cursor: pointer;
  font-weight: 750;
}

.secondary-button:focus-visible,
.secondary-button:hover {
  border-color: var(--line-strong);
  background: rgba(70, 216, 255, 0.08);
  color: var(--white);
}

.panel-note {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(140, 196, 255, 0.14);
}

.governance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.governance-card,
.learning-card,
.check-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 17, 32, 0.68);
}

.governance-card {
  min-height: 16rem;
  padding: 1.35rem;
}

.card-index {
  width: fit-content;
  margin-bottom: 2rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--line-strong);
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 850;
}

.governance-card p,
.learning-card p,
.check-item legend {
  color: var(--muted);
}

.coming-soon {
  display: inline-flex;
  margin-top: 0.4rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgba(159, 124, 255, 0.45);
  border-radius: var(--radius);
  color: var(--white) !important;
  background: rgba(159, 124, 255, 0.12);
  font-size: 0.9rem !important;
  font-weight: 800;
}

.academy-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.learning-card {
  min-height: 17rem;
  padding: 1.1rem;
}

.learning-card h3 {
  color: var(--cyan);
}

.action-section {
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.action-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(19rem, 25rem);
  gap: 1rem;
  align-items: start;
}

.checklist {
  display: grid;
  gap: 0.85rem;
}

.check-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 0.8rem;
  align-items: center;
  margin: 0;
  padding: 1rem;
}

.check-item legend {
  display: contents;
  font-weight: 650;
}

.check-item label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 5.5rem;
  color: var(--text);
  font-size: 0.92rem;
  white-space: nowrap;
}

.check-item input {
  accent-color: var(--violet);
}

.check-item input:focus-visible {
  outline-offset: 2px;
}

.priority-panel {
  position: sticky;
  top: 5.5rem;
  padding: 1.25rem;
}

.priority-output {
  min-height: 9rem;
  margin-bottom: 1rem;
  color: var(--muted);
}

.priority-output ul {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding-left: 1.1rem;
}

.priority-output strong {
  color: var(--white);
}

.inactive-actions {
  display: grid;
  gap: 0.7rem;
  margin: 1rem 0;
}

.inactive-actions button {
  width: 100%;
  min-height: 2.8rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(140, 196, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(244, 248, 255, 0.58);
}

.advice-note {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(140, 196, 255, 0.14);
}

.site-footer {
  width: min(var(--content-max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid rgba(140, 196, 255, 0.12);
  color: var(--dim);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-section,
  .lab-layout,
  .action-layout {
    grid-template-columns: 1fr;
  }

  .hero-section {
    min-height: auto;
  }

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

  .priority-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .section-shell {
    width: min(100% - 1rem, var(--content-max));
    padding: 3.5rem 0;
  }

  .hero-visual,
  .lab-visual {
    min-height: 0;
    aspect-ratio: auto;
  }

  .hero-visual {
    height: clamp(20rem, 58vw, 26rem);
  }

  .lab-visual {
    height: clamp(22rem, 72vw, 28rem);
  }

  .governance-grid,
  .academy-grid {
    grid-template-columns: 1fr;
  }

  .governance-card,
  .learning-card {
    min-height: auto;
  }

  .check-item {
    grid-template-columns: 1fr 1fr;
  }

  .check-item legend {
    display: block;
    grid-column: 1 / -1;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 2.65rem;
  }

  .hero-visual,
  .lab-visual {
    height: 20rem;
  }

  .site-nav a {
    padding-inline: 0.45rem;
  }

  .check-item {
    grid-template-columns: 1fr;
  }
}

@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;
  }
}