/* nocx landing page.
 *
 * The page's graphics are terminal material and state, never a drawing of the
 * product's interface. That line is load-bearing: a real transcript rendered
 * as text is honest, a CSS reconstruction of nocx's tabs and sidebar is a
 * screenshot we did not take. So there is no title bar, no traffic-light
 * dots, no tab strip and no fake chrome anywhere below — every container here
 * announces what kind of artefact it holds.
 *
 * Two voices: a grotesque for claims, monospace for anything a reader could
 * go and verify — a command, its output, a version, a platform floor. Colour
 * is semantic exactly as in a terminal, taken from tokyo-night, the app's own
 * default theme, so page and product read as one thing.
 *
 * Spec: .internal/specs/2026-08-20-github-landing-design.md §5.
 */

:root {
  /* Verbatim from frontend/src/styles/themes/tokyo-night.css. Changing a
   * value here without changing it there breaks the one thing this palette is
   * for. This is the subset the page uses, not the theme's whole ramp. */
  --canvas: #1a1b26;
  --surface: #1f2335;
  --sunken: #16171f;
  --divider: #2a2b3d;
  --text: #c0caf5;
  --text-muted: #a9b1d6;
  --text-dim: #9098bd;
  --border: #5f6590;
  --accent: #7aa2f7;
  --success: #9ece6a;
  --warning: #e0af68;

  --sans: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  --measure: 58ch;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --rhythm: clamp(4rem, 8vw, 7.5rem);
  --hair: 1px solid var(--divider);
}

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

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 78rem;
  margin: 0 auto;
  /* Longhand on purpose. `.wrap` is combined with `.hero` and with `section`,
   * which both set top spacing; a `padding` shorthand in either of those would
   * silently reset these gutters and pull that block out of alignment with
   * every other one. */
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* --- section scaffolding -------------------------------------------------- */

section {
  padding-top: var(--rhythm);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 1.25rem;
  max-width: none;
}

h2 {
  font-size: clamp(1.55rem, 1.1rem + 1.6vw, 2.15rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 620;
  margin: 0 0 0.85rem;
  max-width: 22ch;
}

h3 {
  font-size: 0.9375rem;
  font-weight: 620;
  margin: 0 0 0.4rem;
}

p {
  margin: 0 0 1rem;
  max-width: var(--measure);
}

.lede {
  color: var(--text-muted);
  font-size: 1.0625rem;
}

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

code,
.mono {
  font-family: var(--mono);
  font-size: 0.9em;
}

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

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

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

@media (min-width: 62rem) {
  .hero__grid {
    grid-template-columns: minmax(0, 29rem) minmax(0, 1fr);
    gap: clamp(3rem, 5vw, 5rem);
  }
}

.mark {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 2rem;
  max-width: none;
}

.mark img {
  width: 34px;
  height: 34px;
  border-radius: 7px;
}

.mark span {
  font-family: var(--mono);
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.hero h1 {
  font-size: clamp(2.25rem, 1.4rem + 3.4vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 650;
  margin: 0 0 1.15rem;
  max-width: 15ch;
  text-wrap: balance;
}

.hero .lede {
  /* Deliberately not `.hero p`: that also caught the note under the
   * transcript in the other column, whose 0-1-1 specificity quietly beat the
   * note's own rule and squeezed it to a third of the width it sits under. */
  max-width: 42ch;
}

/* --- the transcript: real output, and nothing pretending to be a window --- */

.transcript {
  background: var(--sunken);
  border: var(--hair);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: clamp(0.75rem, 0.66rem + 0.28vw, 0.875rem);
  line-height: 1.75;
}

/* Not a title bar. It names the kind of artefact this is, which is the whole
 * reason it is allowed to exist: a strip drawing window controls, or naming a
 * machine, would be impersonating an interface we have not photographed. */
.transcript__kind {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 1rem;
  border-bottom: var(--hair);
  color: var(--text-dim);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.transcript__body {
  margin: 0;
  padding: 1.1rem 1rem 1.35rem;
  overflow-x: auto;
  white-space: pre;
  color: var(--text-muted);
}

.transcript__body b {
  font-weight: inherit;
  color: var(--text);
}

.cwd {
  color: var(--accent);
}

.ok {
  color: var(--success);
}

.dim {
  color: var(--text-dim);
}

.caret {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: blink 1.15s steps(1, end) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.transcript__note {
  margin: 0.8rem 0 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  max-width: none;
}

/* --- calls to action ------------------------------------------------------ */

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.25rem;
  margin: 1.75rem 0 1.1rem;
}

.cta {
  display: inline-block;
  padding: 0.7rem 1.35rem;
  border-radius: 5px;
  background: var(--accent);
  color: #10121c;
  font-weight: 650;
  text-decoration: none;
  transition: filter 120ms ease;
}

.cta:hover {
  filter: brightness(1.1);
}

.cta--quiet {
  background: none;
  color: var(--text-muted);
  border: 1px solid var(--border);
  font-weight: 500;
}

.cta--quiet:hover {
  border-color: var(--accent);
  color: var(--text);
  filter: none;
}

/* --- spec rows: the small print that must not read as small print -------- */

.spec {
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.85;
  color: var(--text-dim);
  margin: 0;
  max-width: none;
}

.spec b {
  color: var(--success);
  font-weight: inherit;
}

.warn {
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--warning);
  border-left: 2px solid var(--warning);
  padding: 0.1rem 0 0.1rem 0.7rem;
  margin: 1.15rem 0 0;
  max-width: 48ch;
}

.warn a {
  color: inherit;
}

/* --- the state table: what comes back, and what does not ------------------ */

.states {
  border-top: var(--hair);
  margin: 2rem 0 0;
  font-family: var(--mono);
  font-size: clamp(0.75rem, 0.68rem + 0.2vw, 0.875rem);
}

.states__head,
.states__row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) 1.5rem minmax(0, 1fr);
  gap: 0.5rem 1rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: var(--hair);
}

.states__head {
  color: var(--text-dim);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.states__row span {
  color: var(--text-dim);
}

.states__row .what {
  color: var(--text);
}

.states__row .to {
  color: var(--border);
}

.states__row .after {
  color: var(--success);
}

.states__row--not .after,
.states__row--not .what {
  color: var(--warning);
}

@media (max-width: 40rem) {
  .states__head {
    display: none;
  }

  .states__row {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }

  .states__row .to {
    display: none;
  }
}

/* --- the panel matrix ----------------------------------------------------- */

.matrix {
  border-top: var(--hair);
  margin: 2rem 0 0;
  font-family: var(--mono);
  font-size: clamp(0.75rem, 0.68rem + 0.2vw, 0.875rem);
}

.matrix__row {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: 0.25rem 1.25rem;
  padding: 0.7rem 0;
  border-bottom: var(--hair);
}

.matrix__row dt {
  color: var(--accent);
  letter-spacing: 0.06em;
}

.matrix__row dd {
  margin: 0;
  color: var(--text-muted);
}

@media (max-width: 40rem) {
  .matrix__row {
    grid-template-columns: 1fr;
  }
}

/* --- the flow: a transformation, shown rather than described -------------- */

.flow {
  margin: 2rem 0 0;
  font-family: var(--mono);
  font-size: clamp(0.75rem, 0.68rem + 0.2vw, 0.875rem);
  line-height: 1.9;
  background: var(--sunken);
  border: var(--hair);
  border-radius: 6px;
  padding: 1.15rem 1.25rem;
  overflow-x: auto;
}

.flow__row {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 1.25rem;
}

.flow__row dt {
  color: var(--text-dim);
}

.flow__row dd {
  margin: 0;
  color: var(--text);
}

.flow__step {
  color: var(--text-dim);
  padding: 0.25rem 0 0.25rem 12rem;
}

@media (max-width: 40rem) {
  .flow__row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .flow__step {
    padding-left: 0;
  }
}

/* --- columns: parallel things, read across rather than down -------------- */

.cols {
  display: grid;
  gap: 1.75rem;
  margin: 2rem 0 0;
  grid-template-columns: 1fr;
}

@media (min-width: 48rem) {
  .cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }

  .cols--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.cols h3 {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
  padding-bottom: 0.6rem;
  border-bottom: var(--hair);
  margin: 0 0 0.75rem;
}

.cols p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  max-width: none;
}

.cols ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cols li {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 0.35rem;
}

/* --- the install zone: documentation, in a visibly different register ---- */

.zone {
  background: var(--sunken);
  border-top: var(--hair);
  border-bottom: var(--hair);
  margin: var(--rhythm) 0 0;
}

.zone section {
  padding-top: clamp(3rem, 6vw, 4.5rem);
}

.zone section:last-of-type {
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}

pre.cmd {
  font-family: var(--mono);
  font-size: 0.8125rem;
  background: var(--canvas);
  border: var(--hair);
  border-radius: 5px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  margin: 0 0 1rem;
  color: var(--text);
}

/* --- the passport --------------------------------------------------------- */

.passport {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1.5rem 2rem;
  margin: 2rem 0 0;
  font-family: var(--mono);
  font-size: 0.8125rem;
}

.passport dt {
  color: var(--text-dim);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.3rem;
}

.passport dd {
  margin: 0;
  color: var(--text-muted);
}

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

footer {
  padding: 2.5rem 0 4rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

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

footer p {
  max-width: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}