/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright (C) 2026 Methuselah Nwodobeh */

/*
 * The palette comes from the mascot rather than from a stock scheme: the aubergine ground is what
 * makes her cream circle read as a coin, the hibiscus is the flower in the hat, the straw is the hat
 * itself, and the pale wing pink marks figures that are estimates rather than measurements.
 *
 * Every pair used for text was checked against WCAG AA before it went in.
 */
:root {
  --plum: #2e1b2e;
  --plum-deep: #241623;
  /* Two line colours, because they answer to different rules.
     `--plum-line` divides sections and table rows: decoration, which WCAG asks nothing of, and which
     should stay quiet or it competes with the content it separates.
     `--plum-edge` is the boundary of a control. AA wants 3:1 for those, and it gets exactly that —
     the app itself shipped a button border at 1.55:1 once, which is an outline nobody with low
     vision can find. */
  --plum-line: #4a3049;
  --plum-edge: #826081;
  --cream: #f6efe3;
  --cream-dim: #cbbcb4;
  --hibiscus: #ff5f92;
  --straw: #e8bd77;
  --wing: #f0c4dc;

  --measure: 62ch;
}

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

html {
  /* Anchors land below the fixed masthead rather than under it. */
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--plum);
  color: var(--cream);
  font-family: "Archivo", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Figures and commands are set in mono because aligned digits and copyable commands are what mono is
   for here — not as a decorative device on small labels. */
.fig,
code,
pre {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

a {
  color: var(--hibiscus);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

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

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--cream);
  color: var(--plum);
  padding: 0.5rem 0.9rem;
  border-radius: 2px;
}

/* ---------- masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1.25rem, 5vw, 4.5rem);
  background: color-mix(in srgb, var(--plum) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--plum-line);
}

/* The wordmark is set the way the app spells its own name: lowercase, tight, no ornament. */
.wordmark {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.masthead nav {
  display: flex;
  align-items: center;
  /* Wraps rather than overflows: four links plus the pill is about all a 360px viewport holds, and a
     fifth would push the CTA off the edge rather than onto a second line. */
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.6rem clamp(0.9rem, 2.5vw, 1.9rem);
  font-size: 0.9375rem;
}

.masthead nav a {
  color: var(--cream);
  text-decoration: none;
}

.masthead nav a:hover {
  color: var(--hibiscus);
}

.masthead-cta {
  border: 1px solid var(--hibiscus);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  color: var(--hibiscus) !important;
}

.masthead-cta:hover {
  background: var(--hibiscus);
  color: var(--plum) !important;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6.5rem) clamp(1.25rem, 5vw, 4.5rem) clamp(3rem, 7vw, 5.5rem);
  max-width: 78rem;
  margin: 0 auto;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 6vw, 4.1rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.lede {
  margin: 0 0 2rem;
  max-width: var(--measure);
  font-size: 1.125rem;
  color: var(--cream-dim);
}

/*
 * The ledger: the page's one bold structural element, so everything around it stays quiet. Bordered
 * and inset rather than another rounded card with a soft shadow — it is a reckoning, and it should
 * read like one.
 */
.ledger {
  margin: 0 0 2.25rem;
  padding: 1.4rem 1.5rem 1.25rem;
  background: var(--plum-deep);
  border: 1px solid var(--plum-line);
  border-left: 3px solid var(--straw);
  max-width: 34rem;
}

.ledger figcaption {
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--cream-dim);
}

.ledger dl {
  margin: 0;
}

.ledger-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--plum-line);
}

.ledger-row dt {
  font-size: 0.9375rem;
  color: var(--cream-dim);
}

.ledger-row dd {
  margin: 0;
  white-space: nowrap;
  font-size: 1.0625rem;
}

.ledger-row .fig {
  font-size: 1.35rem;
  font-weight: 600;
}

/* The answer, distinguished by weight and colour rather than by a badge. */
.ledger-row.is-answer {
  border-bottom: 0;
  padding-top: 0.8rem;
}

.ledger-row.is-answer dt {
  color: var(--cream);
  font-weight: 600;
}

.ledger-row.is-answer dd {
  color: var(--straw);
}

.ledger-row.is-answer .fig {
  font-size: 2.1rem;
}

.ledger-note {
  margin: 1rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--cream-dim);
}

.hero-mark img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 27rem;
  margin-inline: auto;
}

/* The second way into the gallery, and the honest one: it sits under the mascot, where somebody who
   has just looked at the mascot is most likely to wonder what else there is. Quiet enough not to
   compete
   with the ledger. */
.hero-mark-note {
  margin: 0.9rem 0 0;
  text-align: center;
  font-size: 0.875rem;
}

.hero-mark-note a {
  color: var(--cream-dim);
  text-decoration-color: var(--plum-edge);
}

.hero-mark-note a:hover {
  color: var(--hibiscus);
  text-decoration-color: currentColor;
}

/* ---------- buttons ---------- */

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
}

.button {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  background: var(--hibiscus);
  color: var(--plum);
  border: 1px solid var(--hibiscus);
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
}

.button:hover {
  background: var(--wing);
  border-color: var(--wing);
  color: var(--plum);
}

.button-quiet {
  background: transparent;
  color: var(--cream);
  border-color: var(--plum-edge);
}

.button-quiet:hover {
  background: transparent;
  border-color: var(--straw);
  color: var(--straw);
}

/* ---------- bands ---------- */

.band {
  padding: clamp(3rem, 7vw, 5rem) clamp(1.25rem, 5vw, 4.5rem);
  max-width: 78rem;
  margin: 0 auto;
}

.band-recessed {
  max-width: none;
  background: var(--plum-deep);
  border-block: 1px solid var(--plum-line);
}

.band-recessed > * {
  max-width: 78rem;
  margin-inline: auto;
}

.band h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.band-lede {
  margin: 0 0 2rem;
  max-width: var(--measure);
  color: var(--cream-dim);
}

.band-note {
  margin: 1.75rem 0 0;
  max-width: var(--measure);
  font-size: 0.9375rem;
  color: var(--cream-dim);
}

.band-note code {
  color: var(--cream);
  font-size: 0.875em;
}

/* ---------- what it does ---------- */

.does {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 2rem clamp(1.5rem, 4vw, 3rem);
  margin-top: 1.5rem;
}

.does h3 {
  margin: 0 0 0.5rem;
  padding-top: 0.9rem;
  border-top: 2px solid var(--hibiscus);
  font-size: 1.0625rem;
  font-weight: 600;
}

.does p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--cream-dim);
}

/* ---------- what it will not do ---------- */

/* A hanging refusal mark, not a tick: these are the things it declines. */
.wont {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
  max-width: 58rem;
}

.wont li {
  position: relative;
  padding-left: 2.1rem;
  font-size: 0.9375rem;
  color: var(--cream-dim);
}

.wont li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  top: -0.05em;
  color: var(--straw);
  font-size: 1.1rem;
}

.wont strong {
  color: var(--cream);
  font-weight: 600;
}

/* ---------- numbers ---------- */

.numbers {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.numbers th,
.numbers td {
  text-align: left;
  padding: 0.75rem 1rem 0.75rem 0;
  border-bottom: 1px solid var(--plum-line);
  vertical-align: baseline;
}

.numbers thead th {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--cream-dim);
  border-bottom-color: var(--straw);
}

.numbers tbody th {
  font-weight: 400;
  color: var(--cream);
}

.numbers tbody td {
  color: var(--cream-dim);
  white-space: nowrap;
}

.numbers tbody td:first-of-type {
  color: var(--straw);
}

.numbers .fig {
  font-size: 1.15rem;
  font-weight: 600;
}

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

.install {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.install-block h3 {
  margin: 0 0 0.6rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--cream-dim);
}

.install pre {
  margin: 0;
  padding: 0.85rem 1rem;
  background: var(--plum);
  border: 1px solid var(--plum-line);
  border-radius: 3px;
  overflow-x: auto;
  font-size: 0.875rem;
}

.band-recessed .install pre {
  background: #1b1019;
}

.install code {
  color: var(--wing);
}

.install-links {
  margin: 0;
}

/* ---------- where it is up to ---------- */

.standing {
  margin: 0 0 1.1rem;
  max-width: var(--measure);
  color: var(--cream-dim);
}

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

footer {
  padding: clamp(2.5rem, 5vw, 3.5rem) clamp(1.25rem, 5vw, 4.5rem);
  border-top: 1px solid var(--plum-line);
  font-size: 0.875rem;
  color: var(--cream-dim);
}

footer p {
  max-width: var(--measure);
  margin: 0 0 0.9rem;
}

footer p:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 0;
}

/* ---------- narrow ---------- */

@media (max-width: 62rem) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  /* The mascot leads on a phone, where a 4rem headline plus a ledger fills the screen before she
     would ever be reached. */
  .hero-mark {
    order: -1;
  }

  .hero-mark img {
    max-width: 15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}