:root {
  color-scheme: light;
  --bg: #f9f9f9;
  --surface: #ffffff;
  --surface-subtle: #f0f4f8;
  --text: #1b1b1b;
  --text-muted: #565c65;
  --primary: #005ea2;
  --primary-dark: #1a4480;
  --accent: #046b99;
  --accent-dark: #07506b;
  --border: #dfe1e2;
  --border-strong: #a9aeb1;
  --focus: #2491ff;
  --visited: #54278f;
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  --radius: 0.5rem;
  --content-width: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Source Sans Pro",
    "Public Sans",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

a {
  color: var(--primary);
}

a:visited {
  color: var(--visited);
}

a:hover {
  color: var(--primary-dark);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: #ffffff;
  color: var(--primary-dark);
  border: 2px solid var(--focus);
  border-radius: 0.25rem;
  text-decoration: none;
  box-shadow: var(--shadow);
}

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

.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;
}

.page-shell {
  width: min(var(--content-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.hero {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-logo {
  display: block;
  width: min(15rem, 100%);
  height: auto;
  margin-bottom: 1rem;
}

.hero-kicker {
  margin: 0 0 0.25rem;
  color: var(--primary-dark);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.hero-copy {
  max-width: 50rem;
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: 1rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.hero-stat {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-subtle);
}

.hero-stat-label,
.hero-stat-value {
  margin: 0;
}

.hero-stat-label {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 700;
}

.hero-stat-value {
  margin-top: 0.25rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.layout {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.panel {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.panel-header h2,
.file-name {
  margin: 0;
}

.panel-header p,
.file-label,
.support-copy,
.sample-empty {
  margin: 0;
  color: var(--text-muted);
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1rem;
}

.file-card {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

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

.file-head > div {
  min-width: 0;
}

.file-label {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.file-name,
.file-label {
  overflow-wrap: break-word;
  word-break: normal;
}

.file-name {
  line-height: 1.25;
}

.download-link,
.sample-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.25rem;
  border: 2px solid transparent;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.download-link {
  color: #ffffff;
  background: var(--primary);
}

.download-link:visited, .download-link:hover {
  color: #ffffff;
  background: var(--primary-dark);
}

.sample-button {
  color: var(--primary-dark);
  background: #ffffff;
  border-color: var(--primary);
}

.sample-button:hover {
  background: #e7f2ff;
}

.sample-button:disabled {
  cursor: wait;
  opacity: 0.75;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.metrics div {
  min-width: 0;
  padding: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: #ffffff;
}

.metrics dt {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 700;
}

.metrics dd {
  margin: 0.25rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.card-actions {
  display: flex;
  justify-content: flex-start;
}

.samples {
  display: grid;
  gap: 0.75rem;
}

.samples pre,
.commands-list pre {
  margin: 0;
  overflow: auto;
  padding: 1rem;
  background: #1f2933;
  color: #f0f4f8;
  border-radius: 0.375rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
}

.split-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.notes-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
}

.notes-list li + li {
  margin-top: 0.5rem;
}

.site-footer {
  margin-top: 1.5rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9375rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 800px) {
  .page-shell {
    width: min(100% - 1rem, var(--content-width));
    padding-top: 1rem;
  }

  .hero,
  .panel {
    padding: 1rem;
  }

  .split-panel,
  .metrics {
    grid-template-columns: 1fr;
  }

  .file-head {
    flex-direction: column;
  }
}