/* Tea example site — layout & typography */

:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-text: #2a2520;
  --color-text-muted: #5c534c;
  --color-accent: #3d6b4f;
  --color-accent-hover: #2d5038;
  --color-border: #e2dcd4;
  --color-code-bg: #f0ebe4;
  --color-pre-bg: #ede7df;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas,
    monospace;
  --radius: 6px;
  --shadow-nav: 0 1px 0 var(--color-border);
}

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

html {
  font-size: 106%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  max-width: 44rem;
  margin-inline: auto;
  padding: 0 1.35rem 3.5rem;
}

/* ——— Nav ——— */

nav {
  position: sticky;
  top: 0;
  z-index: 10;
  margin: 0 -1.35rem 1.75rem;
  padding: 0.85rem 1.35rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-nav);
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
}

nav ul li {
  margin: 0;
}

nav ul li a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

nav ul li a:hover {
  color: var(--color-accent);
  border-bottom-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
}

nav ul li a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ——— Headings ——— */

h1 {
  font-size: clamp(1.75rem, 4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.85rem;
  color: var(--color-text);
}

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 2.25rem 0 0.85rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  letter-spacing: -0.015em;
  color: var(--color-text);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

h3 {
  font-size: 1.08rem;
  font-weight: 650;
  margin: 1.35rem 0 0.5rem;
  color: var(--color-text);
}

h4 {
  font-size: 0.98rem;
  font-weight: 650;
  margin: 1.1rem 0 0.45rem;
  color: var(--color-text-muted);
}

/* ——— Prose ——— */

p {
  margin: 0 0 1rem;
  color: var(--color-text);
  max-width: 65ch;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0 0 1.1rem;
  padding-left: 1.35rem;
  max-width: 65ch;
}

ul:last-child {
  margin-bottom: 0;
}

li {
  margin-bottom: 0.35rem;
}

li::marker {
  color: var(--color-accent);
}

strong {
  font-weight: 650;
  color: var(--color-text);
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

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

/* ——— Inline & block code ——— */

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-code-bg);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--color-border) 80%, transparent);
}

pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  margin: 0.65rem 0 1.15rem;
  padding: 1rem 1.1rem;
  background: var(--color-pre-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: inset 0 1px 2px rgb(0 0 0 / 04%);
}

pre:last-child {
  margin-bottom: 0;
}

pre code {
  font-size: inherit;
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
}

/* ——— Selection ——— */

::selection {
  background: color-mix(in srgb, var(--color-accent) 22%, transparent);
}