/*
 * The neutrals are lifted from the application's own resolved tokens, so a
 * screenshot sits on the page instead of floating on it. Retuning them without
 * recapturing site/screenshots/ shows the seams around every image.
 */
:root {
  color-scheme: light dark;
  --bg: #f3f6ff;
  --raised: #ffffff;
  --sunken: #e9eeff;
  --ink: #181d37;
  --muted: #5c6488;
  --faint: #8b92b3;
  --line: #dde3f7;
  --accent: #5d5fdc;
  --accent-ink: #ffffff;
  --shot-edge: #d5ddf5;
  --shot-shadow: 0 1.5rem 3.5rem rgb(24 29 55 / .13);
  --code-bg: #eaeefb;
  --code-ink: #232848;
  --code-dim: #626a88;
  --code-str: #4a52c8;
  --glow: radial-gradient(60% 60% at 50% 0%, rgb(104 117 246 / .16), transparent 70%);
}

/*
 * The dark values are written twice on purpose. The switch has to win over the
 * system preference, and a media query cannot be part of the same selector list
 * as the attribute the switch sets. Keep the two blocks in sync.
 */
:root[data-theme="light"] { color-scheme: light; }

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0d24;
  --raised: #121637;
  --sunken: #161b42;
  --ink: #eceffc;
  --muted: #9aa2c8;
  --faint: #6e769c;
  --line: #232a55;
  --accent: #949bff;
  --accent-ink: #0a0d24;
  --shot-edge: #262e5c;
  --shot-shadow: 0 1.5rem 3.5rem rgb(0 0 0 / .5);
  --code-bg: #060917;
  --code-ink: #e7e9fb;
  --code-dim: #7b83b8;
  --code-str: #a8b0ff;
  --glow: radial-gradient(60% 60% at 50% 0%, rgb(104 117 246 / .22), transparent 70%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0a0d24;
    --raised: #121637;
    --sunken: #161b42;
    --ink: #eceffc;
    --muted: #9aa2c8;
    --faint: #6e769c;
    --line: #232a55;
    --accent: #949bff;
    --accent-ink: #0a0d24;
    --shot-edge: #262e5c;
    --shot-shadow: 0 1.5rem 3.5rem rgb(0 0 0 / .5);
    --code-bg: #060917;
    --code-ink: #e7e9fb;
    --code-dim: #7b83b8;
    --code-str: #a8b0ff;
    --glow: radial-gradient(60% 60% at 50% 0%, rgb(104 117 246 / .22), transparent 70%);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--glow) no-repeat, var(--bg);
  background-size: 100% 45rem, auto;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.025em; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); letter-spacing: -.04em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1rem; }
p { margin: 0; text-wrap: pretty; }

.skip {
  position: absolute;
  left: -100vw;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 40;
  padding: .6rem 1rem;
  border-radius: .4rem;
  background: var(--accent);
  color: var(--accent-ink);
}

:where(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: .25rem;
}

/* Header */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .9rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  transition: border-color .2s;
}
.topbar[data-stuck] { border-bottom-color: var(--line); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 650;
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand svg { color: var(--accent); }

.topbar nav { display: flex; align-items: center; gap: 1.6rem; font-size: .9rem; }
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--ink); }
.topbar nav .repo { color: var(--ink); font-weight: 550; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  margin-left: -.6rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--raised);
  color: var(--muted);
  cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--faint); }
/* The button only appears once main.js has set data-theme, so exactly one of the
   two icons resolves. `hidden` is no help here: it does not apply to SVG. */
.theme-toggle svg { grid-area: 1 / 1; }
:root[data-theme="dark"] .theme-toggle [data-icon="moon"],
:root:not([data-theme="dark"]) .theme-toggle [data-icon="sun"] { display: none; }

/* Layout */

main > section {
  width: min(100% - 2rem, 68rem);
  margin-inline: auto;
  padding-block: clamp(4rem, 9vw, 7rem);
}
main > section + section { border-top: 1px solid var(--line); }

/* Hero */

.hero {
  padding-top: clamp(3.5rem, 8vw, 6rem);
  text-align: center;
}
.kicker {
  margin-bottom: 1.25rem;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 550;
  letter-spacing: .04em;
}
.hero .lede {
  max-width: 36rem;
  margin: 1.5rem auto 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.15rem);
  text-wrap: balance;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: .75rem;
  margin-top: 2.25rem;
}
.btn {
  padding: .7rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: .5rem;
  background: var(--raised);
  font-size: .92rem;
  font-weight: 550;
  text-decoration: none;
}
.btn:hover { border-color: var(--faint); }
.btn.primary {
  border-color: transparent;
  background: linear-gradient(120deg, #6875f6, #9f47b9);
  color: #fff;
}
.btn.primary:hover { filter: brightness(1.08); }
.release { color: var(--faint); font-size: .82rem; text-decoration: none; }
.release:hover { color: var(--muted); }

/* The capture is the argument, so it runs wider than the column that sets it up. */
.hero-shot {
  position: relative;
  left: 50%;
  translate: -50%;
  width: min(100vw - 2rem, 76rem);
  margin: clamp(3rem, 6vw, 4.5rem) 0 0;
}
.hero-shot img {
  border: 1px solid var(--shot-edge);
  border-radius: .8rem;
  box-shadow: var(--shot-shadow);
}

/* Why */

.why { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(2rem, 6vw, 5rem); }
.why div { display: grid; gap: 1.2rem; color: var(--muted); }
.signature { margin-top: .6rem; color: var(--faint); font-size: .88rem; }
.signature a { color: var(--ink); font-weight: 550; text-decoration-color: var(--line); text-underline-offset: 3px; }

/* Tour */

.tour-head { max-width: 34rem; margin-bottom: 2.5rem; }
.tour-head p { margin-top: .9rem; color: var(--muted); }

.shots-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.shots-nav [role="tablist"] {
  flex: 1;
  display: flex;
  gap: .35rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.shots-nav [role="tablist"]::-webkit-scrollbar { display: none; }
.shots-nav [role="tab"] {
  padding: .45rem .85rem;
  border: 1px solid transparent;
  border-radius: 2rem;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .85rem;
  white-space: nowrap;
  cursor: pointer;
}
.shots-nav [role="tab"]:hover { color: var(--ink); }
.shots-nav [role="tab"][aria-selected="true"] {
  border-color: var(--line);
  background: var(--raised);
  color: var(--ink);
  font-weight: 550;
}
.shots-arrows { display: flex; gap: .4rem; }
.shots-arrows button {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--raised);
  color: var(--muted);
  cursor: pointer;
}
.shots-arrows button:hover { color: var(--ink); border-color: var(--faint); }

.shots-panels figure { margin: 0; }
.shots-panels [data-zoom] {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--shot-edge);
  border-radius: .7rem;
  background: var(--bg);
  overflow: hidden;
  box-shadow: var(--shot-shadow);
  cursor: zoom-in;
}
.shots-panels figcaption {
  max-width: 44rem;
  margin-top: 1.1rem;
  color: var(--muted);
  font-size: .92rem;
}

/* Features */

.features-intro { max-width: 34rem; margin-top: .9rem; color: var(--muted); }
.features ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 2.5rem 3rem;
  margin: 3rem 0 0;
  padding: 0;
  list-style: none;
}
.features h3 { margin-bottom: .5rem; }
.features p { color: var(--muted); font-size: .92rem; }
.features code {
  padding: .1rem .3rem;
  border-radius: .25rem;
  background: var(--sunken);
  color: var(--ink);
  font-size: .9em;
}

/* Install */

.install { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(2rem, 6vw, 5rem); }
.install-intro p { margin-top: .9rem; color: var(--muted); }
.install-box { min-width: 0; }

.tabs {
  display: inline-flex;
  gap: .2rem;
  margin-bottom: 1rem;
  padding: .22rem;
  border-radius: .55rem;
  background: var(--sunken);
}
.tabs button {
  padding: .45rem 1rem;
  border: 0;
  border-radius: .4rem;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .85rem;
  cursor: pointer;
}
.tabs button[aria-selected="true"] {
  background: var(--raised);
  color: var(--ink);
  font-weight: 550;
  box-shadow: 0 1px 3px rgb(24 29 55 / .12);
}

pre {
  margin: 0;
  padding: 1.15rem 1.3rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: .6rem;
  background: var(--code-bg);
  color: var(--code-ink);
  font: .8rem/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
pre.one-line { padding-block: .95rem; }
.dim { color: var(--code-dim); }
.str { color: var(--code-str); }
.tab-panel > p { margin: 1rem 0; color: var(--muted); font-size: .88rem; }
.tab-panel > p code {
  padding: .1rem .35rem;
  border-radius: .25rem;
  background: var(--sunken);
  font-size: .95em;
}

/* Security */

.security { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(2rem, 6vw, 5rem); }
.security p { color: var(--muted); }

/* Footer */

footer {
  width: min(100% - 2rem, 68rem);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .87rem;
}
footer nav { display: flex; gap: 1.4rem; }
footer nav a { text-decoration: none; }
footer nav a:hover { color: var(--ink); }

/* Full-size preview */

.zoom {
  width: min(96vw, 100rem);
  max-width: none;
  max-height: 94vh;
  padding: 0;
  border: 0;
  border-radius: .6rem;
  background: transparent;
  overflow: visible;
}
.zoom::backdrop { background: rgb(6 8 22 / .8); backdrop-filter: blur(6px); }
.zoom img {
  width: 100%;
  max-height: 94vh;
  object-fit: contain;
  border-radius: .6rem;
}
.zoom form { position: absolute; right: -.5rem; top: -2.6rem; }
.zoom form button {
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: 50%;
  background: rgb(255 255 255 / .14);
  color: #fff;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 760px) {
  .topbar nav a:not(.repo) { display: none; }
  .why, .install, .security { grid-template-columns: 1fr; gap: 1.5rem; }
  .shots-arrows { display: none; }
  footer { justify-content: flex-start; }
  footer p { order: 3; flex-basis: 100%; }
}