/* Minimal, dependency-free styling.
   Uses system colors so we avoid introducing a new brand palette prematurely. */

:root {
  color-scheme: light dark;
  --max-width: 1040px;
  /* Brand blue pulled from ExpertAllianceAI-logo.svg (rgb(1, 73, 153)). */
  --brand-blue: rgb(1 73 153);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
  --radius: 12px;
  --border: 1px solid color-mix(in oklab, CanvasText 15%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Lighter blue from the same logo palette for contrast in dark mode. */
    --brand-blue: rgb(64 169 225);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: Canvas;
  color: CanvasText;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.5;
}

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

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

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid Highlight;
  outline-offset: 3px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-4);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: var(--space-2) var(--space-3);
  background: Canvas;
  border: var(--border);
  border-radius: var(--radius);
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 100px;
  padding-top: 0;
  padding-bottom: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  height: 100%;
  padding-top: 0.25rem;
}

.brand__logo {
  display: block;
  height: 100%;
  max-height: 100%;
  width: auto;
  object-fit: contain;
}

.brand__name {
  font-weight: 650;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: flex-end;
  padding-top: 0.5rem;
}

.nav a:not(.button) {
  color: var(--brand-blue);
  font-weight: 600;
}

.nav a:not(.button):hover {
  color: color-mix(in oklab, var(--brand-blue) 85%, CanvasText 15%);
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: var(--space-5);
}

.hero__lead {
  font-size: 1.125rem;
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
}

.hero__actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hero__note {
  margin-top: var(--space-3);
  opacity: 0.85;
}

.hero__panel {
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  background: color-mix(in oklab, Canvas 92%, CanvasText 8%);
}

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

.kpi__value {
  display: block;
  font-weight: 650;
}

.kpi__label {
  display: block;
  opacity: 0.85;
}

.section {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  border-top: var(--border);
}

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

.card {
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  background: color-mix(in oklab, Canvas 96%, CanvasText 4%);
}

.steps {
  margin: var(--space-4) 0 0;
  padding-left: 1.25rem;
  display: grid;
  gap: var(--space-3);
}

.steps__item h3 {
  margin-bottom: var(--space-1);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.6rem 0.95rem;
  border-radius: 999px;
  border: var(--border);
  background: Canvas;
  color: CanvasText;
  font-weight: 600;
}

.button--primary {
  background: var(--brand-blue);
  color: rgb(0 0 0);
  border-color: color-mix(in oklab, var(--brand-blue) 70%, CanvasText 30%);
}

.button--ghost {
  background: transparent;
}

.cta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.fineprint {
  margin-top: var(--space-2);
  opacity: 0.8;
}

.footer {
  border-top: var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.footer__meta {
  opacity: 0.8;
  margin-top: var(--space-1);
}

.footer__right {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .nav {
    column-gap: var(--space-3);
    row-gap: 0.15rem;
  }

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

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

/* Mobile landscape mode optimization */
@media (max-height: 500px) and (orientation: landscape) {
  .header {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .nav {
    column-gap: 0.5rem;
    row-gap: 0.1rem;
  }

  .nav a:not(.button) {
    line-height: 1.2;
  }

  .button {
    line-height: 1.2;
  }
}

/* Extra small landscape viewports */
@media (max-height: 400px) and (orientation: landscape) {
  .header {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
  }

  .nav {
    column-gap: 0.4rem;
    row-gap: 0;
  }
}