/* How Everyone Dies — register of terminal outcomes */

:root {
  /* light: a pale oxblood wash, as on a bookplate */
  --ground: #e6d4cf;
  --ground-tint: #efdfd9;
  --paper: #f1e3df;
  --ink: #2a1015;
  --ink-2: #5d3739;
  --ink-3: #7c4c4d;
  --rule: #c9aaa5;
  --rule-soft: #dcc2bd;
  --accent: #8e1f2f;
  --accent-tint: #ddc2bd;
  --flag: #765313;
  --flag-tint: #e8d7b8;
  --shadow: 0 1px 0 rgba(42, 16, 21, .07);

  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Newsreader", Georgia, "Times New Roman", serif;
  --f-data: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #1b0d10;
    --ground-tint: #2a1116;
    --paper: #27151a;
    --ink: #f0e1dd;
    --ink-2: #c3a29e;
    --ink-3: #9e7a78;
    --rule: #452429;
    --rule-soft: #33191f;
    --accent: #e0908a;
    --accent-tint: #351a20;
    --flag: #d3a455;
    --flag-tint: #33291a;
    --shadow: 0 1px 0 rgba(0, 0, 0, .35);
  }
}

:root[data-theme="dark"] {
  --ground: #1b0d10;
  --ground-tint: #2a1116;
  --paper: #27151a;
  --ink: #f0e1dd;
  --ink-2: #c3a29e;
  --ink-3: #9e7a78;
  --rule: #452429;
  --rule-soft: #33191f;
  --accent: #e0908a;
  --accent-tint: #351a20;
  --flag: #d3a455;
  --flag-tint: #33291a;
  --shadow: 0 1px 0 rgba(0, 0, 0, .35);
}

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

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

body {
  margin: 0;
  background: var(--ground);
  background-image: radial-gradient(115% 62% at 82% -8%, var(--ground-tint), transparent 62%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.62;
  font-optical-sizing: auto;
}

img { max-width: 100%; }
[hidden] { display: none !important; }

a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: .06em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 1px; }

.skip {
  position: absolute; left: -9999px;
  font-family: var(--f-data); font-size: .75rem;
}
.skip:focus { left: 1rem; top: 1rem; background: var(--paper); padding: .5rem .75rem; z-index: 5; }

.shell {
  max-width: 1160px;
  margin: 0 auto;
  padding-inline: clamp(1rem, 4vw, 3rem);
  padding-block: clamp(2rem, 5vw, 3.25rem) 0;
}

/* ---------- shared atoms ---------- */

.label {
  font-family: var(--f-data);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.code {
  font-family: var(--f-data);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--accent);
}

/* ---------- top bar ---------- */

.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--ground);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding-inline: clamp(1rem, 4vw, 3rem);
  min-height: 3.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.5rem;
}
.wordmark {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: .9375rem;
  letter-spacing: -.012em;
  text-decoration: none;
  color: var(--ink);
}
.topbar nav { display: flex; gap: clamp(.9rem, 2.5vw, 1.75rem); }
.topbar nav a {
  font-family: var(--f-data);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-3);
  padding-block: .25rem;
  border-bottom: 2px solid transparent;
}
.topbar nav a:hover { color: var(--ink); }
.topbar nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

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

.masthead { padding-top: .25rem; }

.slugline {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.4rem;
  padding-bottom: clamp(1.75rem, 5vw, 3rem);
}

.masthead h1 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(2.75rem, 9vw, 5.5rem);
  line-height: .94;
  letter-spacing: -.035em;
  margin: 0;
  text-wrap: balance;
}



/* ---------- reading key ---------- */

.key {
  margin-top: clamp(1.75rem, 4vw, 2.25rem);
  padding-block: 1.25rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.key-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1rem clamp(1rem, 3vw, 2rem);
  margin-top: .9rem;
}
.key-grid div p { margin: .3rem 0 0; font-size: .9375rem; line-height: 1.45; color: var(--ink-2); }

/* ---------- parts & entries ---------- */

.part, .key, .pager { max-width: 860px; }

.part { margin-bottom: clamp(3rem, 7vw, 4.5rem); }
.part-head { border-top: 2px solid var(--ink); padding-top: .75rem; }
.part-head h2 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.6vw, 2.125rem);
  letter-spacing: -.022em;
  line-height: 1.1;
  margin: .5rem 0 0;
  text-wrap: balance;
}
.part-head .part-note {
  margin: .6rem 0 0;
  max-width: 62ch;
  color: var(--ink-2);
  font-size: 1rem;
}

.entry { padding-block: clamp(1.75rem, 4vw, 2.5rem); border-bottom: 1px solid var(--rule-soft); }
.entry:last-child { border-bottom: 0; padding-bottom: 0; }

.entry-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem .9rem; }
.entry-head h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.8vw, 1.625rem);
  letter-spacing: -.018em;
  line-height: 1.2;
  margin: 0;
  text-wrap: balance;
}

.strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .85rem 1.25rem;
  margin: 1.1rem 0 1.35rem;
  padding: .85rem 1rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.strip > div { min-width: 0; }
.strip dt { margin-bottom: .22rem; }
.strip dd {
  margin: 0;
  font-family: var(--f-data);
  font-size: .8125rem;
  line-height: 1.35;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.strip dd.flag { color: var(--flag); }
.strip dd.flag::before {
  content: "";
  display: inline-block;
  width: .5em; height: .5em;
  margin-right: .45em;
  background: var(--flag);
  vertical-align: .05em;
}

.entry p, .part-body p { max-width: 68ch; margin: 0 0 1rem; }
.entry p:last-child, .part-body p:last-child { margin-bottom: 0; }

.pull {
  margin: 1.25rem 0;
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
  font-size: 1.0625rem;
  color: var(--ink-2);
  max-width: 62ch;
}
.pull cite { display: block; margin-top: .5rem; font-style: normal; font-family: var(--f-data); font-size: .75rem; letter-spacing: .04em; color: var(--ink-3); }

.source {
  margin-top: 1.1rem;
  font-family: var(--f-data);
  font-size: .75rem;
  line-height: 1.5;
  color: var(--ink-3);
}
.source a { color: var(--ink-2); }
.source a:hover { color: var(--accent); }

/* ---------- arithmetic block (M-04) ---------- */

.sum {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  background: var(--accent-tint);
  font-family: var(--f-data);
  font-size: .8125rem;
  line-height: 1.7;
  font-variant-numeric: tabular-nums;
  overflow-x: auto;
}
.sum b { font-weight: 500; color: var(--accent); }

/* ---------- steps (part E) ---------- */

.step-n {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--rule);
  letter-spacing: -.03em;
}

/* ---------- landing: intro ---------- */

.intro {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  max-width: 62ch;
}
.intro p { margin: 0 0 1rem; }
.intro p:last-child { margin-bottom: 0; }
.intro-lede {
  font-size: clamp(1.125rem, 2.2vw, 1.3125rem);
  line-height: 1.5;
}
.intro > p:not(.intro-lede) { color: var(--ink-2); }
/* the caveat that closes Part M: set apart from the entries it qualifies,
   without another horizontal rule so near the one below it */
.caveat {
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding-left: 1.15rem;
  border-left: 2px solid var(--rule);
  max-width: 66ch;
  font-size: .9375rem;
  line-height: 1.55;
  color: var(--ink-2);
}

/* ---------- landing: tiles ---------- */

.home-part { margin-top: clamp(2.25rem, 6vw, 3.5rem); }

.home-grid, .further ul {
  list-style: none;
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
}
.home-grid { grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); }
.further ul { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }

.card, .further a {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  height: 100%;
  padding: clamp(1.1rem, 2.5vw, 1.45rem);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
}
.card:hover, .further a:hover { background: var(--accent-tint); }
.card h3, .further h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.1875rem;
  line-height: 1.2;
  letter-spacing: -.016em;
  margin: 0;
  text-wrap: balance;
}
.card p, .further p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.5;
  color: var(--ink-2);
  flex: 1;
}
.card-meta {
  font-family: var(--f-data);
  font-size: .75rem;
  color: var(--ink-3);
  padding-top: .35rem;
  border-top: 1px solid var(--rule-soft);
}
.card-meta .label { margin-right: .5rem; }

.further {
  margin-top: clamp(2.5rem, 6vw, 3.75rem);
  border-top: 2px solid var(--ink);
  padding-top: 1rem;
}

/* ---------- pager ---------- */

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  border-top: 2px solid var(--ink);
  padding-block: 1.25rem clamp(3rem, 8vw, 5rem);
}
.pager-link {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  max-width: 28ch;
  text-decoration: none;
  color: var(--ink);
}
.pager-next { align-items: flex-end; text-align: right; }
.pager-title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.25;
  letter-spacing: -.014em;
  text-wrap: balance;
}
.pager-link:hover .pager-title { color: var(--accent); }

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

@media (max-width: 720px) {
  .topbar-inner { min-height: 0; padding-block: .6rem; }
  .pager { flex-direction: column; gap: 1.75rem; }
  .pager-next { text-align: left; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}