/* cc-usage-stats — ccusagestats.app
   One identity with the app icon: slate ground, bone-white dial, and the
   menubar's usage ramp (green → orange → red) reserved for the pill. */

@property --p {
  syntax: "<number>";
  inherits: true;
  initial-value: 0.42;
}

:root {
  color-scheme: light dark;

  --bg: #F6F7F9;
  --bg-raised: #FFFFFF;
  --text: #171A26;
  --muted: #5B6070;
  --rule: #DDE0E6;
  --code-bg: #E9EBF0;
  --link: #1F3A8A;
  --button-bg: #171A26;
  --button-fg: #F4F1EA;
  --menubar-bg: rgba(255, 255, 255, 0.78);
  --desktop-a: #CFD6E4;
  --desktop-b: #E8ECF3;
  --pill-on: #FFFFFF;

  --green: #34C759;
  --orange: #FF9500;
  --red: #FF3B30;
  --focus: #34C759;

  --measure: 720px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171A26;
    --bg-raised: #1F2332;
    --text: #F4F1EA;
    --muted: #A7ACBA;
    --rule: #2E3344;
    --code-bg: #262B3C;
    --link: #9DB4FF;
    --button-bg: #F4F1EA;
    --button-fg: #171A26;
    --menubar-bg: rgba(34, 37, 48, 0.82);
    --desktop-a: #232838;
    --desktop-b: #2F364B;
    --pill-on: #0E0F14;
    /* The app lifts the dark-mode green a step so black-on-green reads. */
    --green: #3DD264;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

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

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.1em 0.4em;
  border-radius: 5px;
}

h1, h2 { letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 7vw, 3.25rem); font-weight: 700; text-wrap: balance; }
h2 { font-size: clamp(1.5rem, 4vw, 1.9rem); font-weight: 650; }
p { margin: 0 0 1em; }
.fine { color: var(--muted); font-size: 0.875rem; }

/* Layout: one centred column, ~720px of text. */
.top, main, .foot {
  width: min(100% - 2 * 20px, var(--measure));
  margin-inline: auto;
}

/* Top bar */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none; font-weight: 600;
}
.brand img { border-radius: 7px; }
.top nav { display: flex; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.top nav a:hover { color: var(--text); text-decoration: underline; }
@media (max-width: 480px) { .top nav a:not(:last-child) { display: none; } }

/* Hero */
.hero { padding: clamp(32px, 7vw, 72px) 0 clamp(40px, 6vw, 64px); }
.lede { font-size: clamp(1.1rem, 2.4vw, 1.3rem); color: var(--muted); max-width: 36em; }

.demo { margin: 36px 0 32px; }
.menubar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  height: 56px;
  padding: 0 18px;
  border-radius: 12px;
  background:
    linear-gradient(var(--menubar-bg), var(--menubar-bg)),
    linear-gradient(100deg, var(--desktop-a), var(--desktop-b));
  border: 1px solid var(--rule);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.clock { color: var(--text); font-weight: 500; }
.ver { font-variant-numeric: tabular-nums; }
.apps { margin-right: auto; color: var(--muted); font-weight: 400; word-spacing: 0.6em; white-space: nowrap; overflow: hidden; }
.apps b { color: var(--text); font-weight: 600; }
@media (max-width: 640px) { .apps { display: none; } }
.demo figcaption { margin-top: 12px; color: var(--muted); font-size: 0.95rem; }
.badge { display: inline-flex; color: var(--muted); }

/* The pill — the thing the whole page is about. --p is the used fraction;
   the colour follows the app's ramp: flat green to 50%, then through
   orange to red at 100%. */
.pill {
  display: inline-flex;
  align-items: stretch;
  height: 30px;
  border-radius: 999px;
  overflow: hidden;
  color: var(--pill-on);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  vertical-align: middle;
  transition: --p 700ms ease;
}
/* One coloured band per window. --p is that band's used fraction; the
   fill follows the app's ramp: flat green to 50%, through orange to red. */
.band {
  --to-orange: calc(clamp(0, (var(--p) - 0.5) / 0.25, 1) * 100%);
  --to-red: calc(clamp(0, (var(--p) - 0.75) / 0.25, 1) * 100%);
  --fill: color-mix(in oklab,
            color-mix(in oklab, var(--green), var(--orange) var(--to-orange)),
            var(--red) var(--to-red));
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 11px 0 9px;
  background: var(--fill);
  transition: --p 700ms ease;
}
.band + .band {
  padding-left: 11px;
  box-shadow: inset 1px 0 0 color-mix(in srgb, var(--pill-on) 45%, transparent);
}
.pct { min-width: 3ch; letter-spacing: 0.01em; }
.glyph { display: block; flex: none; }
.needle {
  transform-box: view-box;
  transform-origin: 12px 12.4px;
  transform: rotate(calc((var(--p) - 0.5) * 180deg));
}
.badge { display: inline-block; flex: none; color: var(--muted); vertical-align: middle; margin-left: 10px; }
.menubar .badge { margin-left: 0; }
@media (prefers-reduced-motion: reduce) {
  .pill, .band { transition: none; }
}

/* The six pill states */
.states {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 32px;
}
.states li { display: flex; flex-wrap: wrap; align-items: center; row-gap: 8px; }
.states .label { flex-basis: 100%; color: var(--muted); font-size: 0.95rem; line-height: 1.4; }
@media (max-width: 560px) { .states { grid-template-columns: minmax(0, 1fr); } }

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 12px; }
.button {
  display: inline-flex; align-items: center; gap: 9px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 10px;
  border: 1px solid var(--rule);
  background: var(--bg-raised);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}
.button:hover { border-color: var(--muted); text-decoration: none; }
.button.primary { background: var(--button-bg); color: var(--button-fg); border-color: var(--button-bg); }
.button.primary:hover { filter: brightness(1.12); }

/* Sections */
.section { padding: clamp(28px, 5vw, 48px) 0; border-top: 1px solid var(--rule); }
.section > p { color: var(--muted); max-width: 40em; }

.shot { display: block; max-width: 100%; height: auto; border-radius: 12px; }
.shot.dropdown { width: 100%; max-width: 280px; border: 1px solid var(--rule); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  margin-top: 28px;
}
@media (max-width: 640px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .shot.dropdown { max-width: 100%; }
}

.features { list-style: none; margin: 0; padding: 0; }
.features li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.features li:first-child { padding-top: 4px; }
.features li:last-child { border-bottom: 0; }
.features svg { width: 24px; height: 24px; margin-top: 2px; color: var(--muted); }
.features strong { color: var(--text); font-weight: 650; }
.features div { color: var(--muted); }

.steps { list-style: none; margin: 8px 0 0; padding: 0; counter-reset: step; }
.steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}
.steps li:last-child { border-bottom: 0; }
.steps span {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--code-bg); color: var(--text);
  font-weight: 700; font-variant-numeric: tabular-nums;
}
.steps div { padding-top: 5px; }

/* Footer */
.foot { padding: 32px 0 48px; border-top: 1px solid var(--rule); color: var(--muted); }
.foot p { margin-bottom: 0.5em; }