/* CapsJump's website: black and white like its mark, in light and dark; a single column
   that narrows to a phone; the looping Caps Lock + G demo (still, in its final frame, for
   reduced motion); and pictures of the app, each in the visitor's own look. */

:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --ink: #0a0a0a;
  --muted: #5c5c5c;
  --line: #e5e5e5;
  --accent: #0a0a0a;
  --accent-ink: #ffffff;
  --accent-soft: #ededed;
  --key: #ffffff;
  --key-side: #d4d4d4;
  --tab: #f1f1f1;
  --code-bg: #0a0a0a;
  --code-ink: #f1f1f1;
  --shadow: rgba(0, 0, 0, 0.16);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0a0a;
    --surface: #161616;
    --ink: #f1f1f1;
    --muted: #a3a3a3;
    --line: #2a2a2a;
    --accent: #f1f1f1;
    --accent-ink: #0a0a0a;
    --accent-soft: #262626;
    --key: #1f1f1f;
    --key-side: #000000;
    --tab: #222222;
    --code-bg: #000000;
    --code-ink: #f1f1f1;
    --shadow: rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --surface: #161616;
  --ink: #f1f1f1;
  --muted: #a3a3a3;
  --line: #2a2a2a;
  --accent: #f1f1f1;
  --accent-ink: #0a0a0a;
  --accent-soft: #262626;
  --key: #1f1f1f;
  --key-side: #000000;
  --tab: #222222;
  --code-bg: #000000;
  --code-ink: #f1f1f1;
  --shadow: rgba(0, 0, 0, 0.6);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
code, pre, kbd { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

.bar, main, .foot {
  max-width: 920px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 19px;
  text-decoration: none;
}
.bar-link { color: var(--muted); text-decoration: none; font-weight: 500; }
.bar-link:hover { color: var(--ink); }

section { padding: 40px 0; }

.hero { padding-top: 48px; text-align: center; }
h1 {
  margin: 0 0 16px;
  font-size: clamp(36px, 7vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.lede {
  max-width: 640px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: clamp(17px, 2.4vw, 20px);
}
.install-line {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  gap: 8px;
  padding: 8px 8px 8px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}
.install-line code { font-size: 15px; overflow-x: auto; white-space: nowrap; }
.copy {
  flex: none;
  padding: 8px 14px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.fine { color: var(--muted); font-size: 14px; }

h2 { margin: 0 0 12px; font-size: 24px; letter-spacing: -0.01em; }
h3 { margin: 28px 0 8px; font-size: 18px; }

kbd {
  display: inline-block;
  padding: 1px 7px;
  border: 1px solid var(--line);
  border-bottom-width: 3px;
  border-radius: 6px;
  background: var(--key);
  color: var(--ink);
  font-size: 0.85em;
  line-height: 1.4;
}

/* The demo. */
.demo { text-align: center; }
.demo svg { width: 100%; max-width: 640px; height: auto; display: block; margin: 0 auto; }
.caption { color: var(--muted); font-size: 15px; margin-top: 12px; }

.key-top { fill: var(--key); stroke: var(--line); stroke-width: 1.5; }
.key-side { fill: var(--key-side); }
.key-label { fill: var(--muted); font: 600 15px -apple-system, system-ui, sans-serif; }
.key-letter { fill: var(--ink); font: 700 26px -apple-system, system-ui, sans-serif; text-anchor: middle; }
.glyph { fill: none; stroke: var(--ink); stroke-width: 2.5; stroke-linejoin: round; }
.key-caps, .key-g { transform-box: fill-box; }

.arc { fill: none; stroke: var(--accent); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 0 12; opacity: 0; }

.window { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.chip { fill: var(--accent-soft); }
.chip-label { fill: var(--accent); font: 700 12px -apple-system, system-ui, sans-serif; text-anchor: middle; }
.tab rect { fill: var(--tab); }
.tab text { fill: var(--muted); font: 600 12px -apple-system, system-ui, sans-serif; text-anchor: middle; }
.page { fill: var(--bg); }
.line { fill: var(--line); }

@media (prefers-reduced-motion: no-preference) {
  .key-caps { animation: caps 5s infinite; }
  .key-g { animation: g 5s infinite; }
  .key-caps .key-top { animation: caps-top 5s infinite; }
  .key-g .key-top { animation: g-top 5s infinite; }
  .arc { animation: arc 5s infinite; }
  .tab-docs rect { animation: tab-before 5s infinite; }
  .tab-docs text { animation: tab-before-text 5s infinite; }
  .tab-pr rect { animation: tab-after 5s infinite; }
  .tab-pr text { animation: tab-after-text 5s infinite; }
  .window { animation: window 5s infinite; }
}

/* Without motion, the last frame: the pull requests tab is the active one. */
@media (prefers-reduced-motion: reduce) {
  .arc { opacity: 1; }
  .tab-pr rect { fill: var(--accent); }
  .tab-pr text { fill: var(--accent-ink); }
}

@keyframes caps { 0%, 12%, 72%, 100% { transform: translateY(0); } 16%, 68% { transform: translateY(7px); } }
@keyframes caps-top { 0%, 12%, 72%, 100% { fill: var(--key); } 16%, 68% { fill: var(--accent-soft); } }
@keyframes g { 0%, 30%, 44%, 100% { transform: translateY(0); } 33%, 41% { transform: translateY(7px); } }
@keyframes g-top { 0%, 30%, 44%, 100% { fill: var(--key); } 33%, 41% { fill: var(--accent-soft); } }
@keyframes arc { 0%, 34% { opacity: 0; } 40%, 62% { opacity: 1; } 72%, 100% { opacity: 0; } }
@keyframes tab-before { 0%, 42% { fill: var(--accent); } 46%, 100% { fill: var(--tab); } }
@keyframes tab-before-text { 0%, 42% { fill: var(--accent-ink); } 46%, 100% { fill: var(--muted); } }
@keyframes tab-after { 0%, 42% { fill: var(--tab); } 46%, 94% { fill: var(--accent); } 98%, 100% { fill: var(--tab); } }
@keyframes tab-after-text { 0%, 42% { fill: var(--muted); } 46%, 94% { fill: var(--accent-ink); } 98%, 100% { fill: var(--muted); } }
@keyframes window { 0%, 42%, 70%, 100% { stroke: var(--line); } 46%, 62% { stroke: var(--accent); } }

/* The four panels. */
.panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.panels article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}
.panels h2 { font-size: 19px; margin-bottom: 8px; }
.panels p { margin: 0; color: var(--muted); }

/* The app, as it looks: window captures at 2x, with the shadow macOS would draw. */
.see { text-align: center; }
.see-lede { max-width: 640px; margin: 0 auto 28px; color: var(--muted); }
.shot { margin: 0 auto 36px; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
  filter: drop-shadow(0 14px 32px var(--shadow));
}
.shot-small { max-width: 480px; }
.shot figcaption {
  max-width: 600px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 15px;
}

pre {
  margin: 16px 0;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-size: 14px;
  line-height: 1.55;
  overflow-x: auto;
}
p code, li code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--accent-soft);
  font-size: 0.88em;
}
.config p, .install p, .install li, .notes li { color: var(--muted); }
.install ol, .notes ul { padding-left: 20px; }
.install li, .notes li { margin-bottom: 8px; }
.notes strong { color: var(--ink); }

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding-top: 24px;
  padding-bottom: 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  section { padding: 28px 0; }
  .hero { padding-top: 24px; }
  .panels { grid-template-columns: 1fr; }
  .shot { margin-bottom: 28px; }
  .install-line { display: flex; }
  .install-line code { font-size: 13px; }
}