:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #171717;
  --muted: #68645f;
  --line: #ded9d0;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --code: #f3f0ea;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent), transparent 45%);
  text-underline-offset: 0.2em;
}

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

.site-header,
.site-main,
.site-footer {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 750;
  font-size: 1.1rem;
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav a {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a[aria-current="page"] {
  border-color: var(--line);
  background: var(--surface);
  color: var(--text);
}

.nav a:last-child {
  margin-left: 4px;
}

.hero {
  padding: 56px 0 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4.75rem);
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.lead {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.generator,
.content-section,
.examples {
  padding: 28px 0;
}

.generator-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.uuid-output {
  display: block;
  width: 100%;
  min-height: 56px;
  margin: 0 0 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--code);
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.88rem, 2.5vw, 1.35rem);
  overflow-wrap: anywhere;
}

.controls,
.field-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.field-grid {
  margin-bottom: 16px;
}

.field {
  flex: 1 1 260px;
}

label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.9rem;
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}

button.secondary,
.button.secondary {
  background: transparent;
  color: var(--accent-dark);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent), transparent 55%);
  outline-offset: 2px;
}

.status {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.info-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.detail-item {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.detail-item p,
.example-note,
.content-section p {
  color: var(--muted);
}

.example-output {
  display: inline-block;
  max-width: 100%;
  padding: 4px 6px;
  border-radius: 4px;
  background: var(--code);
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  overflow-wrap: anywhere;
}

.tabs {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.tab-list {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.tab-button,
.tab-button:link,
.tab-button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-height: 44px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 13px;
  font-weight: 700;
  text-decoration: none;
  text-decoration-line: none;
  cursor: pointer;
}

.tab-button:hover {
  background: color-mix(in srgb, var(--code), transparent 35%);
  color: var(--text);
  text-decoration: none;
  text-decoration-line: none;
}

.tab-button[aria-selected="true"],
.tab-button[aria-selected="true"]:hover {
  background: var(--code);
  color: var(--text);
  text-decoration: none;
  text-decoration-line: none;
}

.tab-panel {
  display: none;
  padding: 0;
}

.tab-panel[aria-hidden="false"] {
  display: block;
}

.example-note {
  margin: 0;
  padding: 14px 18px 0;
  font-size: 0.95rem;
}

pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  background: var(--code);
  color: var(--text);
  font-size: 0.92rem;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.page-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.page-link {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 16px;
  text-decoration: none;
}

.page-link span {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  border-bottom: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  background: var(--code);
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.table-wrap {
  overflow-x: auto;
}

.site-footer {
  padding: 36px 0 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 34px;
  }

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

  .generator-panel {
    padding: 16px;
  }
}