:root {
  color-scheme: dark light;
  --obsidian: #090d18;
  --navy: #111827;
  --panel: #172033;
  --indigo: #6366f1;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --white: #f8fafc;
  --gray: #94a3b8;
  --line: rgba(148, 163, 184, 0.25);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--obsidian);
  color: var(--white);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(34, 211, 238, 0.08), transparent 340px),
    linear-gradient(135deg, #090d18 0%, #111827 48%, #101827 100%);
  color: var(--white);
}

body,
button,
input {
  font: inherit;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  background: var(--white);
  color: var(--obsidian);
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(9, 13, 24, 0.88);
  backdrop-filter: blur(16px);
}

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

.brand strong,
.footer-brand strong {
  display: block;
}

.brand small,
.footer-brand span {
  display: block;
  color: var(--gray);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a,
.site-footer a {
  min-height: 40px;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  color: var(--gray);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--white);
}

.menu-button span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

main {
  outline: none;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 380px);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  min-height: min(680px, calc(100vh - 72px));
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 5rem) 2.5rem;
}

.page-hero h1 {
  max-width: 860px;
  margin: 0.35rem 0 1rem;
  font-size: clamp(3rem, 4rem, 4.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.page-hero p {
  max-width: 720px;
  margin: 0;
  color: #cbd5e1;
  font-size: 1.15rem;
  line-height: 1.7;
}

.eyebrow {
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.section {
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 5vw, 5rem);
}

.band {
  background: rgba(248, 250, 252, 0.055);
  border-block: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.4rem;
}

.section-heading.inline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  max-width: none;
}

.section-heading h2 {
  margin: 0.25rem 0 0.4rem;
  font-size: 1.65rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.section-heading p,
.info-panel p,
.status-card p,
.tool-card p,
.security-list p,
.legal-text {
  color: #cbd5e1;
  line-height: 1.65;
}

.status-grid,
.tool-grid,
.operations-grid,
.linking-panel,
.device-grid,
.agent-grid,
.approval-grid,
.observability-grid,
.execution-grid,
.webhook-grid,
.integration-grid,
.brand-assets,
.security-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.status-card,
.tool-card,
.info-panel,
.security-list article {
  min-height: 150px;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 24, 39, 0.74);
  box-shadow: var(--shadow);
}

.status-card h3,
.tool-card h3,
.info-panel h2,
.security-list h2 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  line-height: 1.25;
}

.status-card small {
  color: var(--gray);
}

.status-card.warning {
  border-color: rgba(245, 158, 11, 0.55);
}

.tool-card {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.risk,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--white);
  font-size: 0.78rem;
}

.risk.informational {
  border-color: rgba(34, 211, 238, 0.55);
}

.risk.low {
  border-color: rgba(34, 197, 94, 0.55);
}

.risk.sensitive {
  border-color: rgba(245, 158, 11, 0.65);
}

.risk.prohibited {
  border-color: rgba(239, 68, 68, 0.7);
}

.proposal-form {
  display: grid;
  gap: 0.5rem;
  max-width: 820px;
}

.proposal-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
}

label {
  color: var(--white);
  font-weight: 700;
}

input {
  min-height: 48px;
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(9, 13, 24, 0.78);
  color: var(--white);
}

input:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(34, 211, 238, 0.45);
  outline-offset: 3px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(248, 250, 252, 0.08);
  color: var(--white);
  cursor: pointer;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--cyan), var(--indigo));
  color: #06111f;
  font-weight: 800;
}

.text-link {
  color: var(--cyan);
  font-weight: 700;
}

.result-box {
  min-height: 132px;
  margin: 1rem 0 0;
  padding: 1rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #050814;
  color: #dbeafe;
}

.brand-assets img {
  min-height: 120px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(248, 250, 252, 0.92);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1rem, 5vw, 5rem);
  border-top: 1px solid var(--line);
  background: #070b14;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

@media (max-width: 760px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 68px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.6rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #090d18;
  }

  .site-nav.open {
    display: flex;
  }

  .page-hero,
  .two-column {
    grid-template-columns: 1fr;
  }

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

  .page-hero h1 {
    font-size: 3rem;
  }

  .section-heading.inline,
  .site-footer {
    align-items: start;
    flex-direction: column;
  }

  .proposal-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --obsidian: #f8fafc;
    --navy: #e2e8f0;
    --panel: #ffffff;
    --white: #0f172a;
    --gray: #475569;
    --line: rgba(15, 23, 42, 0.16);
  }

  body {
    background: #f8fafc;
  }

  .site-header,
  .status-card,
  .tool-card,
  .info-panel,
  .security-list article,
  input {
    background: rgba(255, 255, 255, 0.92);
  }

  .result-box {
    background: #0f172a;
    color: #e2e8f0;
  }

  .site-footer {
    background: #e2e8f0;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: currentColor;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}