/*
 * The Simple MD Reader site.
 *
 * One set of tokens, two palettes. light-dark() picks between them according
 * to the color scheme, so the theme is a single line rather than a second
 * copy of every color.
 */

:root {
  color-scheme: light dark;

  --paper: light-dark(#f4efe6, #14161b);
  --paper-raised: light-dark(#fbf8f2, #1b1e25);
  --paper-sunken: light-dark(#eae2d4, #101216);
  --paper-glass: light-dark(rgba(251, 248, 242, 0.82), rgba(27, 30, 37, 0.82));
  --ink: light-dark(#241e18, #e9e4d9);
  --ink-soft: light-dark(#6b6156, #a29b8f);
  --ink-faint: light-dark(#9a8f81, #7b7469);
  --rule: light-dark(#ded4c4, #2b2f38);
  --rule-strong: light-dark(#c8bba6, #3c414c);
  --code-bg: light-dark(#efe8db, #1a1d24);

  --accent: #c0442a;
  --link: #a63a22;

  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: Georgia, "Iowan Old Style", "Times New Roman", Times, serif;

  --measure: 40rem;
  --wide: 66rem;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 1px 2px rgba(60, 45, 26, 0.06), 0 12px 32px -22px rgba(60, 45, 26, 0.4);
  --shadow-lift: 0 1px 2px rgba(60, 45, 26, 0.06), 0 30px 70px -30px rgba(60, 45, 26, 0.45);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

:root[data-theme='light'] { color-scheme: light; }
:root[data-theme='dark'] { color-scheme: dark; }

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -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(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

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

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-glass);
  backdrop-filter: blur(10px);
}

.topbar__inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  flex: none;
}

.brand__mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brand__name {
  font-family: var(--font-ui);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  gap: 0;
  padding: 0.5rem 1.5rem 0.9rem;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-raised);
  box-shadow: var(--shadow);
  font-family: var(--font-ui);
  font-size: 0.92rem;
}

.nav[data-open='true'] { display: flex; }

.nav a {
  display: block;
  padding: 0.5rem 0;
  color: var(--ink-soft);
  text-decoration: none;
}

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

.burger {
  display: grid;
  place-items: center;
  width: 34px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 9px;
  background: var(--paper-raised);
  color: var(--ink-soft);
  cursor: pointer;
}

.burger:hover { color: var(--accent); }

@media (min-width: 60.0625rem) {
  .nav {
    display: flex;
    position: static;
    flex-direction: row;
    gap: 1.25rem;
    margin-left: auto;
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
    font-size: 0.86rem;
  }

  .nav a { padding: 0; }

  .segmented { margin-left: 0; }

  .burger { display: none; }
}

/* ------------------------------------------------------- theme control */

.segmented {
  display: inline-flex;
  margin-left: auto;
  padding: 3px;
  gap: 2px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--paper-raised);
  box-shadow: var(--shadow);
  flex: none;
}

.segmented button {
  display: grid;
  place-items: center;
  width: 32px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--ink-faint);
  cursor: pointer;
  transition: background-color 140ms var(--ease-out), color 140ms var(--ease-out);
}

.segmented button:hover { color: var(--ink); }

.segmented button[aria-pressed='true'] {
  background: var(--paper-sunken);
  color: var(--accent);
}

/* ------------------------------------------------------------ the wipe */

/*
 * The same wipe the reader uses when the theme changes: a circle of the
 * incoming color grows from the button, and the theme flips underneath it.
 */
.wipe {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background: var(--wipe-color);
  clip-path: circle(0 at var(--wipe-x) var(--wipe-y));
  transition: clip-path 420ms var(--ease-out);
}

.wipe[data-theme='light'] { --wipe-color: #f4efe6; }
.wipe[data-theme='dark'] { --wipe-color: #14161b; }

.wipe[data-open='true'] {
  clip-path: circle(var(--wipe-radius) at var(--wipe-x) var(--wipe-y));
}

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

.hero {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 4.5rem 1.5rem 1rem;
  text-align: center;
}

.hero__icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 1.6rem;
  border-radius: 22px;
  box-shadow: var(--shadow-lift);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.hero__standfirst {
  margin: 1.1rem auto 0;
  max-width: 36rem;
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--ink-soft);
  text-wrap: balance;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  margin-top: 2rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.chips li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-raised);
}

.chips svg { opacity: 0.7; }

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

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.62rem 1.15rem;
  border: 1px solid var(--rule-strong);
  border-radius: 10px;
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform 140ms var(--ease-out), border-color 140ms var(--ease-out);
}

.button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  text-decoration: none;
}

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button--primary:hover { border-color: var(--accent); }

/* --------------------------------------------------------------- shots */

.shot {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-raised);
  box-shadow: var(--shadow-lift);
}

.shot img { width: 100%; }

.shot figcaption {
  padding: 0.75rem 1.1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

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

.section {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 4.5rem 1.5rem 0;
}

.section__head {
  max-width: var(--measure);
  margin: 0 auto 2.5rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.section__head h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section__head p {
  margin: 0.9rem 0 0;
  max-width: 38rem;
  margin-inline: auto;
  color: var(--ink-soft);
  text-wrap: balance;
}

/* --------------------------------------------------------------- cards */

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

.card {
  padding: 1.5rem 1.4rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper-raised);
  box-shadow: var(--shadow);
}

.card__icon {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  margin-bottom: 0.9rem;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}

.card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.card p {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.6;
  color: var(--ink-soft);
  text-wrap: pretty;
}

/* --------------------------------------------------------------- facts */

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rule);
}

.fact {
  padding: 1.4rem 1.2rem;
  background: var(--paper-raised);
}

.fact__value {
  display: block;
  font-size: 1.9rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.fact__label {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------- table */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper-raised);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  line-height: 1.55;
}

th,
td {
  padding: 0.8rem 1.1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}

thead th {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}

tbody tr:last-child td { border-bottom: 0; }

td:first-child { font-weight: 600; white-space: nowrap; }

/* ---------------------------------------------------------- prose pages */

.prose {
  max-width: 44rem;
  margin: 0;
  padding: 0;
}

.pagehead {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 0;
}

.pagehead h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3rem);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.pagehead .standfirst {
  margin: 0.9rem 0 0;
  max-width: var(--measure);
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--ink-soft);
  text-wrap: balance;
}

.pagehead .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* The policy page, laid out like the rest of the site. */
.privacy {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 3rem 1.5rem 0;
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

@media (max-width: 60rem) {
  .privacy {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }
}

.prose h2 {
  margin: 3rem 0 0.9rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
  font-size: 1.45rem;
  line-height: 1.25;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.prose h2:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }

.prose p {
  margin: 0 0 1.1rem;
  text-wrap: pretty;
}

.prose ul,
.prose ol {
  margin: 0 0 1.1rem;
  padding-left: 1.3rem;
}

.prose li { margin-bottom: 0.45rem; }

.prose li::marker { color: var(--ink-faint); }

.prose strong { font-weight: 700; }

.prose code {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  font-size: 0.86em;
  overflow-wrap: anywhere;
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 5px;
  padding: 0.1em 0.35em;
}

.prose blockquote {
  margin: 1.8rem 0;
  padding: 0.9rem 1.2rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--paper-raised);
  box-shadow: var(--shadow);
  color: var(--ink-soft);
}

.prose blockquote p:last-child { margin-bottom: 0; }

.callout {
  display: flex;
  gap: 0.85rem;
  margin: 2rem 0;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper-raised);
  box-shadow: var(--shadow);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

.callout svg { flex: none; margin-top: 0.15rem; color: var(--accent); }

.callout p { margin: 0; }

.contents {
  font-family: var(--font-ui);
  font-size: 0.83rem;
  line-height: 1.5;
}

@media (min-width: 60.0625rem) {
  .contents {
    position: sticky;
    top: 5rem;
    max-height: calc(100vh - 7rem);
    overflow-y: auto;
  }
}

.contents h2 {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.contents ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: section;
}

.contents li { counter-increment: section; }

.contents a {
  display: block;
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink-soft);
  text-decoration: none;
}

.contents a::before {
  content: counter(section) ".\00a0";
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.contents a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

@media (min-width: 60.0625rem) {
  /* Room for a list, once there is a column to put it in. */
  .contents ol {
    display: block;
    padding: 0;
  }

  .contents a {
    padding: 0.22rem 0 0.22rem 2rem;
    border: 0;
    border-radius: 6px;
    background: none;
  }

  .contents a::before {
    display: inline-block;
    width: 1.7rem;
    margin-left: -2rem;
  }

  .contents a:hover {
    background: color-mix(in srgb, var(--accent) 8%, transparent);
  }
}

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

.footer {
  max-width: var(--wide);
  margin: 5rem auto 0;
  padding: 2rem 1.5rem 3.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer a { color: var(--ink-soft); text-decoration: none; }

.footer a:hover { color: var(--accent); }

.footer__note {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink-faint);
}

/* --------------------------------------------------------------- print */

@media print {
  :root {
    color-scheme: light;
    --paper: #fff;
    --paper-raised: #fff;
    --ink: #000;
    --ink-soft: #333;
    --ink-faint: #666;
    --rule: #ccc;
    --rule-strong: #999;
    --link: #000;
  }
  body { font-size: 11pt; }
  .topbar, .contents, .callout, .footer { display: none; }
  .prose h2 { break-after: avoid; }
  a { text-decoration: none; }
}