/* Glotze website: plain CSS, no build step. Colours follow libadwaita.
 *
 * fonts/AdwaitaSans.woff2 is a Latin subset of Adwaita Sans 51.0 (SIL OFL, see
 * fonts/OFL.txt), made with:
 *   python3 -m fontTools.subset /usr/share/fonts/truetype/adwaita/AdwaitaSans-Regular.ttf \
 *     --unicodes="U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+20AC,U+2122,U+2190-2193,U+2212" \
 *     --layout-features='*' --flavor=woff2 --output-file=fonts/AdwaitaSans.woff2
 * It has its own family name, so visitors with Adwaita Sans installed (GNOME 48+)
 * use their system font and never download it.
 */
@font-face {
  font-family: "Adwaita Sans Web";
  src: url("fonts/AdwaitaSans.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #fafafb;
  --card: #ffffff;
  --card-shadow: 0 0 0 1px rgb(0 0 6 / 3%), 0 1px 3px 1px rgb(0 0 6 / 7%),
    0 2px 6px 2px rgb(0 0 6 / 3%);
  --fg: rgb(0 0 6 / 80%);
  --fg-dim: rgb(0 0 6 / 55%);
  --separator: rgb(0 0 6 / 7%);
  --accent: #1c71d8;
  --accent-bg: #3584e4;
  --button: rgb(0 0 6 / 8%);
  --code: rgb(0 0 6 / 5%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #222226;
    --card: #2e2e32;
    --card-shadow: 0 0 0 1px rgb(0 0 6 / 9%), 0 1px 3px 1px rgb(0 0 6 / 18%),
      0 2px 6px 2px rgb(0 0 6 / 9%);
    --fg: #ffffff;
    --fg-dim: rgb(255 255 255 / 60%);
    --separator: rgb(255 255 255 / 7%);
    --accent: #78aeed;
    --button: rgb(255 255 255 / 10%);
    --code: rgb(255 255 255 / 6%);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Adwaita Sans", "Adwaita Sans Web", Cantarell, system-ui, sans-serif;
  line-height: 1.5;
}

main,
footer {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px;
}

img {
  max-width: 100%;
  height: auto;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h2 {
  margin: 0 0 16px;
  font-size: 1.6rem;
  font-weight: 800;
}

h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

section {
  margin: 56px 0;
}

/* Hero */
.hero {
  padding: 64px 0 16px;
  text-align: center;
}

.hero > img {
  filter: drop-shadow(0 2px 6px rgb(0 0 0 / 20%));
}

h1 {
  margin: 16px 0 8px;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 16px;
  font-size: 1.35rem;
  font-weight: 600;
}

.intro {
  max-width: 36em;
  margin: 0 auto 24px;
  color: var(--fg-dim);
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.button {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 9999px;
  background: var(--button);
  color: var(--fg);
  font-weight: 700;
  text-decoration: none;
}

.button.suggested {
  background: var(--accent-bg);
  color: #ffffff;
}

.button:hover {
  filter: brightness(1.08);
}

/* Screenshots: the PNGs already carry the window's rounded corners and shadow. */
figure {
  margin: 0 0 32px;
}

figcaption {
  color: var(--fg-dim);
  font-size: 0.9rem;
  text-align: center;
}

/* Boxed list and cards, like libadwaita's */
.boxed-list,
.card {
  border-radius: 12px;
  background: var(--card);
  box-shadow: var(--card-shadow);
}

.boxed-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.boxed-list li {
  padding: 12px 16px;
}

.boxed-list li + li {
  border-top: 1px solid var(--separator);
}

.boxed-list strong {
  display: block;
}

.boxed-list span,
.card p,
.note {
  color: var(--fg-dim);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 12px;
}

/* Install cards hold commands to copy: give each the full width. */
#install .cards {
  grid-template-columns: 1fr;
}

.card {
  min-width: 0; /* lets a long <pre> scroll instead of widening the page */
  padding: 16px 20px;
}

.card p {
  margin: 0 0 12px;
}

.card .button {
  margin-bottom: 8px;
}

.note {
  font-size: 0.9rem;
}

pre,
code {
  font-family: "Adwaita Mono", monospace;
}

pre {
  margin: 8px 0;
  padding: 8px 12px;
  overflow-x: auto;
  border-radius: 8px;
  background: var(--code);
  font-size: 0.85rem;
}

/* Footer */
footer {
  padding-bottom: 48px;
  color: var(--fg-dim);
  font-size: 0.9rem;
  text-align: center;
}

footer p {
  margin: 6px 0;
}