:root {
  --bg: #f7f6f3;
  --surface: #ffffff;
  --border: #e7e5df;
  --fg: #2a2b2d;
  --muted: #6f6e67;
  --ink: #151515;
  --accent: #1f6c9f;
  --accent-bg: #e1f0fb;
  --code: #1b1c1e;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --page: max(28px, (100% - 1160px) / 2);
  --serif: 'Instrument Serif', Georgia, serif;
  --mono: 'Geist Mono', 'Cascadia Code', Consolas, monospace;
  color-scheme: light;
}

/* Set in the head of each page: the saved choice, or the system one. */
:root[data-theme='dark'] {
  --bg: #161615;
  --surface: #1e1e1c;
  --border: #2f2e2b;
  --fg: #dcdad4;
  --muted: #9a988f;
  --ink: #f3f1ec;
  --accent: #7fb6e6;
  --accent-bg: rgb(127 182 230 / 12%);
  --code: #0f0f0e;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font:
    17px/1.65 Geist,
    system-ui,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--page);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 15px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--ink);
}

#language {
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: none;
  color: var(--muted);
  font: 500 12px var(--mono);
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
}

#language:hover,
#theme:hover {
  border-color: var(--muted);
  color: var(--ink);
}

#theme {
  display: grid;
  place-items: center;
  width: 28px;
  height: 24px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: none;
  color: var(--muted);
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
}

/* The icon shows the theme a click switches to. */
[data-theme='dark'] #theme .moon,
:root:not([data-theme='dark']) #theme .sun {
  display: none;
}

main {
  padding: 0 var(--page);
}

h1,
h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 400;
  text-wrap: balance;
}

h1 {
  font-size: clamp(52px, 8.4vw, 112px);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

h1 em {
  color: var(--accent);
}

h2 {
  font-size: clamp(38px, 4.6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lead {
  max-width: 54ch;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  text-wrap: pretty;
}

/* Home */

.hero {
  padding: 88px 0 56px;
}

.hero h1 {
  max-width: 14ch;
  margin: 24px 0 20px;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}

.download {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  margin-top: 36px;
}

.button {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  text-decoration: none;
  transition:
    background 0.2s,
    transform 0.15s var(--ease);
}

.button:hover {
  background: color-mix(in srgb, var(--ink) 82%, var(--bg));
}

.button:active {
  transform: scale(0.98);
}

.link {
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 4px;
  transition: color 0.2s;
}

.link:hover {
  color: var(--ink);
  text-decoration-color: currentColor;
}

.window {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 30px 80px -40px rgb(40 36 28 / 25%);
}

.window .bar {
  display: flex;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.window .bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.window img {
  width: 100%;
}

.cascades {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
  padding: 128px 0 96px;
}

.cascades p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.features {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  padding-bottom: 128px;
}

.features article {
  display: flex;
  flex-direction: column;
  gap: 22px;
  grid-column: span 7;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  transition: box-shadow 0.25s;
}

.features article:hover {
  box-shadow: 0 6px 24px rgb(0 0 0 / 4%);
}

.features article:nth-child(2),
.features article:nth-child(3) {
  grid-column: span 5;
}

.features article:last-child {
  flex-direction: row;
  grid-column: span 12;
  gap: 48px;
  align-items: center;
}

.features article:last-child > * {
  flex: 1;
}

.features article:last-child .shot {
  flex: 1.4;
  margin: 0;
}

.features p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

/* The screenshot fills the height left by the text, so a narrow card next to
   a wide one has no gap: it is cropped from the top left, the zoom shows it whole. */
.shot {
  position: relative;
  flex: 1;
  aspect-ratio: 1920 / 1140;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition:
    transform 0.5s var(--ease),
    box-shadow 0.5s var(--ease);
}

.shot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left top;
}

.shot:hover {
  z-index: 1;
  transform: scale(1.04);
  box-shadow: 0 24px 60px -20px rgb(0 0 0 / 35%);
}

.plugins {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
  padding: 96px 0 128px;
  border-top: 1px solid var(--border);
}

.plugins p {
  max-width: 46ch;
  color: var(--muted);
  font-size: 18px;
}

pre {
  overflow-x: auto;
  margin: 0;
  padding: 24px 26px;
  border-radius: 12px;
  background: var(--code);
  color: #d9d7d0;
  font: 14px/1.7 var(--mono);
}

pre .k {
  color: #a7c7e7;
}

pre .s {
  color: #c9b98a;
}

code {
  font-family: var(--mono);
}

footer {
  padding: 40px var(--page) 56px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

footer a {
  color: var(--muted);
}

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

/* Screenshots open full size (main.js). */

[data-zoom] {
  cursor: zoom-in;
}

.zoom {
  max-width: 94vw;
  max-height: 94vh;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-out;
}

.zoom img {
  max-width: 94vw;
  max-height: 94vh;
  border-radius: 10px;
}

.zoom::backdrop {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(6px);
}

.zoom[open] {
  animation: pop 0.35s var(--ease);
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
}

/* Blocks fade in as they scroll into view (main.js adds .in). */

.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.7s var(--ease),
    transform 0.7s var(--ease);
  transition-delay: calc(var(--i, 0) * 80ms);
}

.js .reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 800px) {
  :root {
    --page: 16px;
  }

  nav {
    gap: 18px;
  }

  nav a[href*='#'] {
    display: none;
  }

  .hero {
    padding-top: 56px;
  }

  .cascades,
  .plugins {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 80px 0;
  }

  .features article,
  .features article:nth-child(2),
  .features article:nth-child(3) {
    grid-column: span 12;
    padding: 20px;
  }

  .features article:last-child {
    flex-direction: column;
    gap: 22px;
    align-items: stretch;
  }
}

/* Documentation */

.docs {
  max-width: calc(920px + 2 * var(--page));
  margin: 0 auto;
  padding-top: 56px;
  padding-bottom: 64px;
}

.docs h1 {
  font-size: clamp(48px, 7vw, 80px);
}

.docs .lead {
  margin-top: 12px;
}

.basics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 40px 0;
}

.basics > div {
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.basics p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.tools {
  position: sticky;
  top: 64px;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  background: var(--bg);
}

#search {
  flex: 1;
  min-width: 200px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
}

.systems {
  display: flex;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.systems button {
  padding: 9px 12px;
  border: none;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.systems button[aria-pressed='true'] {
  background: var(--ink);
  color: var(--bg);
}

.docs h2 {
  margin-top: 48px;
}

.reference h3 {
  margin: 32px 0 6px;
  color: var(--muted);
  font: 500 12px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reference dl {
  margin: 0;
}

.reference .row {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.reference dt {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.reference dt code {
  color: var(--muted);
  font-size: 12px;
}

.reference .setting dt code {
  order: -1;
  color: var(--ink);
  font-size: 14px;
}

.reference .setting dt span {
  color: var(--muted);
  font-size: 15px;
}

.reference dd {
  display: flex;
  flex: none;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
  align-content: flex-start;
  max-width: 45%;
  margin: 0;
}

.reference .setting dd {
  flex-direction: column;
  align-items: flex-end;
  color: var(--muted);
  text-align: right;
  overflow-wrap: anywhere;
}

kbd {
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink);
  font: 500 13px var(--mono);
  white-space: nowrap;
}

.empty {
  color: var(--muted);
}

@media (max-width: 760px) {
  .reference .row {
    flex-direction: column;
    gap: 6px;
  }

  .reference dd,
  .reference .setting dd {
    justify-content: flex-start;
    align-items: flex-start;
    max-width: none;
    text-align: left;
  }
}