:root {
  --bg: #11132b;
  --surface: #191c3d;
  --surface-alt: #222650;
  --ink: #11132b;
  --text: #ffffff;
  --muted: #a3a6c8;
  --accent: #ff6b6b;
  --accent-hover: #ff5252;
  --blue: #4d96ff;
  --blue-light: #eef8ff;
  --white: #ffffff;
  --border: rgba(255, 255, 255, 0.15);
  --line: 2px solid #11132b;
  --radius: 16px;
  --shadow: 4px 4px 0px #11132b;
  --max: 1140px;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: var(--white);
  padding: 8px 16px;
  z-index: 100;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* Simulation Banner */
.sim-banner {
  background: #ffecb3;
  color: #5d4037;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  border-bottom: var(--line);
}
.sim-banner p {
  margin: 0;
}
.sim-pill {
  background: #ffb300;
  color: var(--ink);
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

/* Site Header */
.site-header {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}
.brand strong {
  display: block;
  font-size: 1.25rem;
  line-height: 1;
  letter-spacing: 0.05em;
}
.brand small {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
}
.pixie-mark {
  display: grid;
  grid-template-columns: repeat(2, 8px);
  gap: 3px;
}
.pixie-mark i {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

nav {
  display: flex;
  gap: 1.25rem;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}
nav a:hover {
  color: var(--text);
}

/* Buttons & Links */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  border: var(--line);
  box-shadow: 2px 2px 0 var(--ink);
  cursor: pointer;
  transition: transform 0.1s, background-color 0.2s;
}
.button:hover {
  background: var(--accent-hover);
}
.button-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}
.button-ghost, .button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}
.button.primary {
  background: var(--accent);
  color: var(--white);
}

.text-link {
  color: var(--blue);
  text-decoration: none;
  font-weight: 600;
}
.text-link:hover {
  text-decoration: underline;
}

/* Main Layout Wrapper */
main {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
  padding-block: 2.5rem;
}

/* Eyebrow & Lede Typography */
.eyebrow {
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.lede {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 65ch;
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  gap: 2.5rem;
  align-items: center;
  padding-block: 3rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-block: 0.5rem 1.5rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-block: 2rem;
}
.audience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.audience-tags span {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}

.status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.status-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 700;
}
.status-top .status {
  color: var(--accent);
}
.orb {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-block: 1rem;
}
.orb span {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent);
}
.signal {
  text-align: center;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.status-card dl {
  margin: 0;
  display: grid;
  gap: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.status-card dl > div {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}
.status-card dt {
  color: var(--muted);
}
.status-card dd {
  margin: 0;
  font-weight: 600;
}

/* Event Brief (Fixed Layout & Neubrutalist styling) */
.event-brief {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
  margin-block: 3.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  padding: clamp(2rem, 4vw, 3.5rem);
  background: var(--blue-light);
  color: var(--ink);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.event-brief h2,
.event-brief h3 {
  margin-top: 0;
  color: var(--ink);
}
.event-brief .eyebrow {
  color: #11132b;
}
.event-brief aside {
  padding: 1.5rem;
  border: var(--line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: 4px 4px 0 var(--ink);
}
.event-brief ol {
  padding-left: 1.35rem;
  margin-bottom: 1rem;
}
.event-brief ol li {
  margin-bottom: 0.25rem;
}
.event-brief aside a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}
.event-brief aside a:hover {
  text-decoration: underline;
}
.event-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Demo Interactive Section */
.demo-section {
  margin-block: 4rem;
}
.section-heading {
  margin-bottom: 2rem;
}
.demo-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.demo-header {
  background: var(--surface-alt);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.demo-dots {
  display: flex;
  gap: 6px;
}
.demo-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}
.demo-title-bar {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}
.demo-badge {
  font-size: 0.7rem;
  background: rgba(255, 107, 107, 0.15);
  color: var(--accent);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.demo-body {
  padding: 1.5rem;
}
.demo-steps {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
}
.demo-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.demo-step.active {
  color: var(--text);
  font-weight: 700;
}
.demo-step.done {
  color: var(--blue);
}
.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.demo-panel {
  display: none;
}
.demo-panel.active {
  display: block;
}

.pixie-message {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.pixie-avatar {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}
.message-bubble {
  background: var(--surface-alt);
  padding: 1rem;
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  max-width: 600px;
}
.message-bubble p {
  margin: 0 0 0.5rem 0;
}
.message-bubble p:last-child {
  margin-bottom: 0;
}

.demo-provenance {
  background: rgba(0, 0, 0, 0.2);
  border: 1px dashed var(--border);
  padding: 1rem;
  border-radius: 8px;
  margin-block: 1rem;
  font-size: 0.85rem;
}
.prov-label {
  display: block;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.prov-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}
.prov-key {
  color: var(--muted);
}
.prov-val {
  font-family: monospace;
}
.prov-note {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--accent);
}

.demo-choices {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}
.demo-choice {
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-size: 0.9rem;
}
.demo-choice.primary {
  background: var(--blue);
  color: var(--white);
}
.demo-choice.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.demo-input-row {
  margin-block: 1rem;
}
.demo-input {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: inherit;
}

.filename-proposal {
  background: var(--bg);
  padding: 0.5rem;
  border-radius: 4px;
  font-family: monospace;
  color: var(--blue);
  margin-block: 0.5rem;
}

.transcript-lines {
  display: grid;
  gap: 0.5rem;
  font-family: monospace;
}
.transcript-line {
  display: flex;
  gap: 0.75rem;
}
.transcript-line .ts {
  color: var(--muted);
}

.demo-lang-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1rem;
}
.lang-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
}
.lang-btn.active {
  border-color: var(--blue);
  background: rgba(77, 150, 255, 0.1);
  color: var(--blue);
}

.resume-note-preview {
  background: var(--surface-alt);
  border-radius: 8px;
  padding: 1rem;
  margin-block: 1rem;
}
.note-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}
.note-date {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.8rem;
}
.note-body p {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
}

.done-state {
  text-align: center;
  padding-block: 1rem;
}
.done-icon {
  width: 48px;
  height: 48px;
  background: #4caf50;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1rem auto;
}
.done-list {
  text-align: left;
  max-width: 500px;
  margin: 1.5rem auto;
  color: var(--muted);
  font-size: 0.95rem;
}
.done-list li {
  margin-bottom: 0.4rem;
}
.done-note {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 1.5rem auto;
}
.done-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.sim-footer-note {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Promise Grid */
.promise {
  margin-block: 4rem;
}
.promise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.promise-grid article {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--radius);
}
.promise-grid article span {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 800;
}
.promise-grid h3 {
  margin-top: 0.5rem;
}
.promise-grid p {
  color: var(--muted);
  margin-bottom: 0;
}

/* Protocol Section */
.protocol {
  margin-block: 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem;
}
.route {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}
.route li {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 8px;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.route li > span {
  font-weight: 800;
  color: var(--blue);
}
.route li strong {
  display: block;
}
.route li p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Use Case / File Window Section */
.use-case {
  margin-block: 4rem;
}
.file-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-block: 1.5rem;
  overflow: hidden;
}
.window-bar {
  background: var(--surface-alt);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--muted);
}
.window-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}
.window-bar b {
  margin-left: auto;
}
.file-row {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}
.file-row:last-child {
  border-bottom: none;
}
.file-icon {
  font-size: 1.2rem;
  color: var(--blue);
}
.file-row div {
  flex-grow: 1;
}
.file-row strong {
  display: block;
  font-size: 0.9rem;
  font-family: monospace;
}
.file-row small {
  color: var(--muted);
  font-size: 0.75rem;
}
.file-row b {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.use-case-copy {
  color: var(--muted);
  max-width: 60ch;
}

/* Health Stewardship Section */
.health-stewardship {
  margin-block: 4rem;
}
.steward-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-block: 2rem;
}
.steward-grid article {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}
.steward-grid .step {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 800;
}
.steward-grid h3 {
  margin-block: 0.5rem;
  font-size: 1.1rem;
}
.steward-grid p {
  color: var(--muted);
  font-size: 0.9rem;
  flex-grow: 1;
}
.demo-status {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  color: var(--muted);
  display: inline-block;
  margin-top: 1rem;
}
.demo-status.caution {
  color: #ffb300;
  background: rgba(255, 179, 0, 0.1);
}
.synthetic-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

/* Ecosystem Section */
.ecosystem {
  margin-block: 4rem;
}
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.ecosystem-grid article {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--radius);
}
.ecosystem-grid article.active {
  border-color: var(--accent);
}
.node-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-top: 0;
}
.ecosystem-grid h3 {
  margin-block: 0.25rem 0.5rem;
}
.ecosystem-grid p {
  color: var(--muted);
  font-size: 0.9rem;
}
.ecosystem-grid a {
  color: var(--blue);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Research Section */
.research {
  margin-block: 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}
.research-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.research-links a {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
}
.research-links a span {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Footer */
footer {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
  border-top: 1px solid var(--border);
  padding-block: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-brand {
  margin-bottom: 1rem;
}
.fine-print {
  font-size: 0.8rem;
  margin-top: 1.5rem;
  opacity: 0.75;
}

/* Responsive Styles */
@media (max-width: 760px) {
  .hero, .protocol, .research {
    grid-template-columns: 1fr;
  }
  .event-brief {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  nav {
    flex-wrap: wrap;
  }
}