/*
 * One stylesheet for one page.
 *
 * The page is deliberately single-theme: this is a terminal tool, and the
 * design commits to the dark ground a terminal lives on rather than shipping a
 * washed out light variant of it. Every colour is painted explicitly, so it
 * holds whatever theme the browser is in.
 *
 * Two families do the work. Inter carries the prose, JetBrains Mono carries
 * anything the machine produced: commands, selectors, costs, percentages. The
 * accent green is reserved for one idea, that a run after the build is free,
 * and amber for the one thing that does cost money.
 */

:root {
  --bg: #0B1220;
  --bg-2: #0E1626;
  --surface: #121C30;
  --surface-2: #17233C;
  --line: #22304A;
  --line-soft: #1A2740;

  --ink: #F2F6FC;
  --ink-2: #AEBCD2;
  --ink-3: #8595AE;

  --green: #34D399;
  --green-dim: #0F3A2C;
  --amber: #FBBF24;
  --link: #7CB6FF;

  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --wrap: 68rem;
  --narrow: 48rem;
  --r: 14px;
  --r-sm: 9px;
  --shadow: 0 1px 0 #ffffff0a inset, 0 18px 40px -24px #00000080;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  background-image:
    radial-gradient(60rem 28rem at 15% 0, #12324a99, transparent 70%),
    radial-gradient(40rem 22rem at 90% 3rem, #14372c80, transparent 70%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

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

/* Grid and flex children default to min-width:auto, which lets a wide <pre> or
   table push the whole page sideways. Nothing here may do that: the scrolling
   belongs to the block itself. */
.hero-grid > *,
.cards > *,
.gallery > *,
.term,
.table-wrap,
.code-block { min-width: 0; }

a { color: var(--link); text-decoration-color: #7cb6ff66; text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }

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

h1, h2, h3 { text-wrap: balance; margin: 0; letter-spacing: -0.02em; line-height: 1.15; }
p { margin: 0; }

code {
  font: 500 0.9em/1.5 var(--mono);
  background: #ffffff0f;
  border-radius: 5px;
  padding: 0.12em 0.36em;
}

.vh {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

.skip {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 20;
  padding: 0.6rem 1rem;
  background: var(--green);
  color: #06281D;
  font-weight: 600;
  border-radius: var(--r-sm);
  transition: top 150ms ease-out;
}
.skip:focus { top: 1rem; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
.wrap.narrow { max-width: var(--narrow); }

/* The rail of ads sits beside the content from 75rem up, where showcase.css stops
   being a bar along the bottom and becomes a stack of three cards. The sticky header
   stays full width above both, so the rail sticks below it rather than under it. */
.shell { width: 100%; max-width: 92.5rem; margin-inline: auto; }
.page { min-width: 0; }
@media (min-width: 75rem) {
  .shell { display: grid; grid-template-columns: minmax(0, 1fr) 300px; column-gap: 1.5rem; padding-inline: 1.25rem; }
  .showcase-slot { grid-column: 2; top: 5rem; padding-top: 2.5rem; }
}

/* ------------------------------------------------------------------ header -- */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #0b1220e6;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.top-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 3.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font: 700 1.0625rem/1 var(--mono);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.5rem;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
  padding-block: 0.4rem;
}
.nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1.15rem;
  border-radius: 999px;
  font: 600 0.9375rem/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 160ms ease-out, border-color 160ms ease-out, transform 160ms ease-out;
}
.btn:active { transform: translateY(1px); }
.btn .i { width: 1.125rem; height: 1.125rem; flex: none; }

.btn-primary { background: var(--green); color: #06281D; }
.btn-primary:hover { background: #4AE3AC; }

.btn-ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { background: var(--surface-2); border-color: #31446a; }

.top-repo { min-height: 2.25rem; padding-inline: 0.9rem; font-size: 0.875rem; }

@media (max-width: 52rem) {
  .nav { display: none; }
  .top-repo { margin-left: auto; }
}

/* -------------------------------------------------------------------- hero -- */

.hero {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 1rem;
}

.hero-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
@media (min-width: 62rem) {
  .hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }
}

.eyebrow {
  font: 500 0.8125rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.1rem, 5.4vw, 3.4rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
}
h1 .hl {
  color: var(--green);
  position: relative;
  white-space: nowrap;
}

.lead {
  color: var(--ink-2);
  font-size: clamp(1.0625rem, 1.6vw, 1.1875rem);
  max-width: 38ch;
}
.lead em { color: var(--ink); font-style: italic; }

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* The terminal card. Its scrollbar is its own, so the page never scrolls sideways. */
.term {
  margin: 0;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 0.95rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink-3);
  font: 500 0.8125rem/1 var(--mono);
}
.term-bar .dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--line);
}
.term-bar .dot:first-child { background: #3c4a66; margin-right: 0.1rem; }

.term-body {
  margin: 0;
  padding: 1rem 1.1rem 1.2rem;
  overflow-x: auto;
  font: 400 0.8125rem/1.75 var(--mono);
  color: var(--ink-2);
  tab-size: 2;
}
.term-body code { background: none; padding: 0; font-size: inherit; }
.c-p { color: var(--green); }
.c-s { color: var(--amber); }
.c-k { color: #9BC4FF; }
.c-d { color: var(--ink-3); }
.c-g { color: var(--green); font-weight: 700; }
.c-f { color: #FF8B8B; font-weight: 700; }

/* ------------------------------------------------------------------- stats -- */

.stats {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  list-style: none;
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding: 0;
}

.stat {
  padding: 1.1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
}
.stat b {
  display: block;
  font: 700 clamp(1.6rem, 3.2vw, 2rem)/1.1 var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}
.stat span {
  display: block;
  color: var(--ink-3);
  font-size: 0.875rem;
  line-height: 1.45;
}
.stat-green b { color: var(--green); }
.stat-green { border-color: #1d5a45; background: linear-gradient(var(--surface), var(--green-dim)); }
.stat-amber b { color: var(--amber); }

.fineprint {
  margin-top: 0.85rem;
  color: var(--ink-3);
  font-size: 0.8125rem;
  max-width: 60ch;
}

/* ---------------------------------------------------------------- sections -- */

.section { padding-block: clamp(3rem, 7vw, 5rem); border-top: 1px solid var(--line-soft); }
.section:first-of-type { border-top: 0; }

h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.section-lead {
  color: var(--ink-2);
  max-width: 62ch;
  margin-bottom: 2rem;
}

.section p + p,
.section p + .shot,
.section p + .table-wrap { margin-top: 1.25rem; }

.section > .wrap > p { color: var(--ink-2); max-width: 66ch; }

/* ------------------------------------------------------------------- video -- */

.video {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}

.video-note {
  margin-top: 0.85rem;
  color: var(--ink-3);
  font-size: 0.875rem;
}

/* ------------------------------------------------------- images and cards -- */

.shot {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--bg-2);
}
.shot img { width: 100%; }
.shot figcaption {
  padding: 0.7rem 0.9rem;
  color: var(--ink-3);
  font-size: 0.8125rem;
  border-top: 1px solid var(--line-soft);
}
.shot figcaption em { color: var(--ink-2); font-style: italic; }
.shot.wide { margin-bottom: 2.5rem; }

.gallery {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  margin-top: 2rem;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-bottom: 2.5rem;
}
.card {
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
}
.card p { color: var(--ink-2); font-size: 0.9375rem; margin: 0; }

.steps {
  margin: 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.9rem;
  color: var(--ink-2);
  max-width: 68ch;
}
.steps li::marker { color: var(--green); font-family: var(--mono); font-size: 0.875rem; }
.steps b { color: var(--ink); }

.limits {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
  max-width: 68ch;
}
.limits li {
  padding-left: 1.1rem;
  border-left: 2px solid var(--line);
  color: var(--ink-2);
}
.limits b { color: var(--ink); }

/* ------------------------------------------------------------------ tables -- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--bg-2);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  white-space: nowrap;
}
th, td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}
thead th {
  color: var(--ink-3);
  font: 600 0.75rem/1.2 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
tbody th { font-weight: 600; color: var(--ink); }
td { color: var(--ink-2); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.num.green { color: var(--green); font-weight: 700; }
.num.amber { color: var(--amber); font-weight: 700; }
td.sub {
  color: var(--ink-3);
  font-size: 0.8125rem;
  white-space: normal;
  background: #ffffff05;
}

.quote {
  margin: 1.25rem 0 1.5rem;
  padding: 0.95rem 1.1rem;
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--green);
  border-radius: var(--r-sm);
  overflow-x: auto;
  font: 400 0.8125rem/1.7 var(--mono);
  color: var(--ink-2);
}
.quote code { background: none; padding: 0; font: inherit; }

/* -------------------------------------------------------------- code block -- */

.code-block {
  position: relative;
  margin-bottom: 1.25rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}
.code-block pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font: 400 0.8125rem/1.8 var(--mono);
  color: var(--ink-2);
}
.code-block code { background: none; padding: 0; font: inherit; }
.code-block .c-d { color: var(--ink-3); }

.copy {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  min-height: 2rem;
  padding: 0 0.7rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  font: 600 0.75rem/1 var(--sans);
  cursor: pointer;
}
.copy:hover { background: #22304a; color: var(--ink); }

/* ------------------------------------------------------- closing and foot -- */

.closing {
  background: radial-gradient(40rem 20rem at 50% 120%, #14372c80, transparent 70%);
  text-align: center;
}
.closing .section-lead { margin-inline: auto; }
.closing .cta { justify-content: center; }

.foot {
  border-top: 1px solid var(--line-soft);
  padding-block: 2.5rem 3rem;
}
.credits {
  color: var(--ink-3);
  font-size: 0.875rem;
  max-width: 62ch;
  margin-bottom: 1.5rem;
}

.vcf-home {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.9rem 0.5rem 0.55rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  font-size: 0.875rem;
  text-decoration: none;
}
.vcf-home b { color: var(--ink); font-weight: 600; }
.vcf-home:hover { background: var(--surface-2); }

/* -------------------------------------------------------------------- 404 -- */

.lost {
  min-height: 70vh;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 1.25rem;
}
.lost .cta { justify-content: center; }