/* Same paper-and-ink palette as the extension UI (src/assets/ui.css). */
:root {
  color-scheme: light dark;
  --paper: #f4f2ed;
  --sheet: #fffefb;
  --ink: #1d1c1a;
  --muted: #6b675f;
  --line: #e2ddd2;
  --screen: #e4e0d5;
  /* illustration: colour photo on the web page, the same photo in grayscale on the reader */
  --c-sky: #cfe0ee;
  --c-sun: #f0c96b;
  --c-hill: #7fa38a;
  --g-sky: #c9c5bb;
  --g-sun: #a9a59c;
  --g-hill: #85817a;
  --ui: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --read: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, 'PT Serif', Georgia, serif;
  --mono: ui-monospace, 'SF Mono', 'Cascadia Mono', 'DejaVu Sans Mono', monospace;
  --measure: 42rem;
  --wide: 66rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171614;
    --sheet: #1f1e1b;
    --ink: #e9e6df;
    --muted: #a19c92;
    --line: #34322d;
    --screen: #2b2a26;
    --c-sky: #36506a;
    --c-sun: #c9a650;
    --c-hill: #557a62;
    --g-sky: #45433e;
    --g-sun: #66635d;
    --g-hill: #807c74;
  }
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.6 var(--read);
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration-color: var(--muted);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: currentColor;
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  width: min(100% - 2.5rem, var(--wide));
  margin-inline: auto;
}

/* Header */

.site-header {
  font-family: var(--ui);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-block: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-inline-end: auto;
  font-weight: 650;
  text-decoration: none;
}

.brand img {
  width: 1.75rem;
  height: 1.75rem;
}

.site-nav ul,
.langs ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.langs ul {
  gap: 0.25rem 0.8rem;
}

.site-nav a,
.langs a {
  color: var(--muted);
  font-size: 0.9375rem;
  text-decoration: none;
}

.site-nav a:hover,
.langs a:hover {
  color: var(--ink);
}

.site-nav a[aria-current],
.langs a[aria-current] {
  color: var(--ink);
  text-decoration: underline 2px;
  text-underline-offset: 0.45em;
}

.langs {
  padding-inline-start: 1.25rem;
  border-inline-start: 1px solid var(--line);
}

@media (max-width: 44rem) {
  .brand {
    flex-basis: 100%;
  }

  .langs {
    padding-inline-start: 0;
    border-inline-start: 0;
  }
}

/* Text */

main {
  padding-block: clamp(2rem, 1rem + 4vw, 4.5rem);
}

h1,
h2 {
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.5rem, 1.2rem + 1vw, 1.9rem);
  line-height: 1.2;
}

h3 {
  margin: 2rem 0 0.5rem;
  font: 650 1.0625rem/1.35 var(--ui);
}

p,
ul,
ol,
dl {
  margin-block: 0 1rem;
}

p,
li,
dd {
  text-wrap: pretty;
}

ul,
ol {
  padding-inline-start: 1.25rem;
}

li {
  margin-block: 0.35rem;
}

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

code {
  padding: 0.05em 0.35em;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--sheet);
  font: 0.85em var(--mono);
  overflow-wrap: anywhere;
}

kbd,
.label {
  padding: 0.1em 0.45em;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--sheet);
  font: 600 0.85em var(--ui);
  white-space: nowrap;
}

.panel code,
.panel kbd,
.steps kbd,
.steps .label,
.table-wrap code {
  background: var(--paper);
}

.note {
  color: var(--muted);
  font: 0.9375rem/1.5 var(--ui);
}

/* Overview */

.hero {
  display: grid;
  align-items: center;
  gap: 2.5rem;
  margin-block-end: clamp(3rem, 2rem + 4vw, 5rem);
}

@media (min-width: 52rem) {
  .hero {
    grid-template-columns: 1.15fr 1fr;
  }
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 1.4rem + 3.6vw, 3.75rem);
  line-height: 1.05;
}

.lede {
  max-width: 34em;
  margin: 0 0 1.75rem;
  font-size: clamp(1.15rem, 1rem + 0.5vw, 1.35rem);
  line-height: 1.5;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--sheet);
  color: var(--muted);
  font: 500 0.875rem/1 var(--ui);
}

.badge::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--c-sun);
}

.button {
  display: inline-block;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font: 600 1rem/1 var(--ui);
  text-decoration: none;
}

.illustration {
  justify-self: center;
  width: 100%;
  max-width: 26rem;
  height: auto;
}

.i-window { fill: var(--sheet); stroke: var(--line); stroke-width: 2; }
.i-rule { stroke: var(--line); stroke-width: 2; }
.i-dot { fill: var(--line); }
.i-head { fill: var(--ink); }
.i-text { fill: var(--muted); opacity: 0.45; }
.i-arrow { fill: none; stroke: var(--muted); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.i-reader { fill: var(--ink); }
.i-screen { fill: var(--screen); }
.i-ink { fill: var(--ink); }
.i-ink-soft { fill: var(--ink); opacity: 0.55; }
.i-button { fill: var(--screen); opacity: 0.4; }
.c-sky { fill: var(--c-sky); }
.c-sun { fill: var(--c-sun); }
.c-hill { fill: var(--c-hill); }
.g-sky { fill: var(--g-sky); }
.g-sun { fill: var(--g-sun); }
.g-hill { fill: var(--g-hill); }

.section {
  margin-block: clamp(2.75rem, 2rem + 3vw, 4.5rem);
}

.section > p,
.section > ul,
.section > ol {
  max-width: var(--measure);
}

.steps {
  display: grid;
  gap: 1rem;
  margin-block-end: 1.25rem;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

@media (min-width: 48rem) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.steps li {
  margin: 0;
  padding: 1.25rem 1.25rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--sheet);
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: block;
  margin-block-end: 0.75rem;
  color: var(--muted);
  font: 700 2rem/1 var(--read);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 1.5rem 2rem;
  padding: 0;
  list-style: none;
}

.section > .features,
.section > .steps {
  max-width: none;
}

.features li {
  margin: 0;
  padding-block-start: 1rem;
  border-top: 1px solid var(--line);
}

.features strong {
  display: block;
  margin-block-end: 0.3rem;
  font: 650 1rem/1.35 var(--ui);
}

.panel {
  padding: clamp(1.25rem, 0.75rem + 2vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--sheet);
}

.panel > * {
  max-width: var(--measure);
}

.panel > :last-child {
  margin-block-end: 0;
}

.scopes dt {
  margin-block-start: 1rem;
  font: 650 1rem/1.4 var(--ui);
}

.scopes dd {
  margin: 0.25rem 0 0;
}

.fine {
  color: var(--muted);
  font-size: 0.9375rem;
}

/* Privacy policy and terms */

.doc {
  max-width: var(--measure);
}

.doc h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem);
  line-height: 1.1;
}

.doc h2 {
  margin-block-start: 2.75rem;
  font-size: 1.5rem;
}

.meta {
  margin-block-end: 2rem;
  color: var(--muted);
  font: 0.9375rem var(--ui);
}

.table-wrap {
  margin-block: 1rem 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--sheet);
}

table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font: 0.9375rem/1.45 var(--ui);
}

th,
td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
}

th {
  font-weight: 650;
}

tbody tr:last-child td {
  border-bottom: 0;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 0.875rem/1.55 var(--ui);
}

.site-footer .wrap {
  padding-block: 1.75rem 2.5rem;
}

.site-footer p {
  max-width: 48rem;
  margin: 0 0 0.5rem;
}

.site-footer a {
  color: var(--ink);
}