/* buzz-tui
 *
 * One accent, a lot of whitespace, and the terminal doing the talking. The
 * palette is the client's own default theme, so the site and the thing it
 * describes look like the same piece of work.
 */

:root {
  --accent: #89b4fa;
  --mauve: #cba6f7;
  --green: #a6e3a1;
  --peach: #fab387;
  --red: #f38ba8;

  --bg: #11111b;
  --panel: #181825;
  --surface: #1e1e2e;
  --line: #313244;

  --text: #cdd6f4;
  --muted: #a6adc8;
  --dim: #6c7086;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo,
    Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, sans-serif;

  --measure: 46rem;
}

@media (prefers-color-scheme: light) {
  :root {
    --accent: #1e66f5;
    --mauve: #8839ef;
    --green: #40a02b;
    --peach: #fe640b;
    --red: #d20f39;

    --bg: #eff1f5;
    --panel: #e6e9ef;
    --surface: #dce0e8;
    --line: #ccd0da;

    --text: #4c4f69;
    --muted: #5c5f77;
    --dim: #8c8fa1;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  /* Optical centring: content sits slightly above true centre, which reads as
   * balanced rather than as having drifted upward. */
  padding: clamp(3rem, 9vh, 7rem) 1.5rem 6rem;
}

main {
  max-width: var(--measure);
  margin: 0 auto;
}

/* ------------------------------------------------------------------ type */

h1 {
  font-size: clamp(2.2rem, 6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
  font-weight: 650;
}

h2 {
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--dim);
  font-weight: 600;
  margin: 4.5rem 0 1.25rem;
}

h3 {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 600;
  margin: 2rem 0 0.6rem;
}

p {
  margin: 0 0 1.1rem;
  color: var(--muted);
}

.lede {
  font-size: 1.2rem;
  color: var(--text);
  max-width: 38rem;
  margin-bottom: 2rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--mauve);
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--text);
  background: var(--surface);
  /* Tight horizontal padding: anything more leaves a visible gap before the
   * punctuation that follows an inline code span. */
  padding: 0.1em 0.28em;
  border-radius: 4px;
}

/* -------------------------------------------------------------- terminal */

/* The hero is a real captured frame, not a mock-up, so it gets to look like
 * a terminal rather than like a screenshot of one. */
.term {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  margin: 0 0 2.5rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.45;
  white-space: pre;
  color: var(--text);
  tab-size: 4;
}

.term .rail {
  color: var(--line);
}
.term .dim {
  color: var(--dim);
}
.term .name {
  color: var(--accent);
  font-weight: 600;
}
.term .alt {
  color: var(--mauve);
  font-weight: 600;
}
.term .ok {
  color: var(--green);
}
.term .badge {
  color: var(--accent);
  font-weight: 600;
}
.term .chip {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}
.term .key {
  color: var(--accent);
  font-weight: 600;
}

/* ---------------------------------------------------------------- install */

.install {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  overflow-x: auto;
}

.install::before {
  content: "$";
  color: var(--dim);
  flex: none;
}

.install code {
  background: none;
  padding: 0;
  white-space: nowrap;
}

.note {
  font-size: 0.88rem;
  color: var(--dim);
  margin-top: 0.7rem;
}

/* ---------------------------------------------------------------- content */

ul {
  padding-left: 1.1rem;
  margin: 0 0 1.2rem;
}

li {
  margin-bottom: 0.55rem;
  color: var(--muted);
}

li strong {
  color: var(--text);
  font-weight: 600;
}

pre.block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 1.2rem;
}

/* ------------------------------------------------------------- keybindings */

.keys {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 0 2.5rem;
}

.keys table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.keys td {
  padding: 0.16rem 0;
  vertical-align: baseline;
}

.keys td.k {
  font-family: var(--mono);
  color: var(--mauve);
  white-space: nowrap;
  padding-right: 1rem;
  width: 1%;
}

.keys td.d {
  color: var(--muted);
}

/* --------------------------------------------------------------- footer */

footer {
  margin-top: 5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

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

/* The prose stays at a readable measure, but the terminal is a hundred columns
 * wide and earns the extra room. Only break it out when the viewport can hold
 * the wider box symmetrically; below that it fills the column and scrolls. */
@media (min-width: 64rem) {
  .term {
    margin-inline: -4.5rem;
    width: calc(100% + 9rem);
  }
}

@media (max-width: 40rem) {
  body {
    font-size: 16px;
    padding-top: 2.5rem;
  }
  .term {
    font-size: 10px;
    border-radius: 8px;
  }
}