/* brugada.net design system
   Register: a good lab notebook written by someone who is also a patient.
   Reader 1 is frightened and may be reading at 2am, so dark mode is a first-class
   case, type is large, and measure is short. Reader 2 wants numbers and sources,
   so evidence state is a visible, consistent object rather than prose hedging. */

:root {
  --paper: #fbfbf9;
  --raised: #ffffff;
  --ink: #16171a;
  --ink-soft: #4a4d55;
  --muted: #6d717a;
  --line: rgba(20, 22, 26, 0.13);
  --line-soft: rgba(20, 22, 26, 0.07);

  /* Evidence states. Meaning is carried by label text too, never colour alone. */
  --known: #1d6b45;
  --known-bg: rgba(29, 107, 69, 0.09);
  --believed: #8a5a00;
  --believed-bg: rgba(138, 90, 0, 0.09);
  --unresolved: #1e5aa8;
  --unresolved-bg: rgba(30, 90, 168, 0.09);
  --dead: #8c2f39;
  --dead-bg: rgba(140, 47, 57, 0.08);

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  --measure: 34rem;
  --wide: 60rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101114;
    --raised: #16181c;
    --ink: #eceef2;
    --ink-soft: #b6bac3;
    --muted: #8b909b;
    --line: rgba(236, 238, 242, 0.16);
    --line-soft: rgba(236, 238, 242, 0.08);
    --known: #6ed6a0;
    --known-bg: rgba(110, 214, 160, 0.12);
    --believed: #f0c05a;
    --believed-bg: rgba(240, 192, 90, 0.12);
    --unresolved: #7fb2f0;
    --unresolved-bg: rgba(127, 178, 240, 0.12);
    --dead: #f08a95;
    --dead-bg: rgba(240, 138, 149, 0.12);
  }
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
h1, h2, h3 { text-wrap: balance; }

/* Tailwind's preflight zeroes these, so the vertical rhythm is set here
   explicitly rather than inheriting browser defaults. Without this every
   paragraph runs into the next one. */
p {
  margin: 0 0 1.1rem;
  text-wrap: pretty;
}
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 1.1rem; }

a {
  color: inherit;
  text-decoration-color: var(--line);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
  transition: text-decoration-color 0.15s;
}
a:hover { text-decoration-color: currentColor; }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1.25rem;
  background: var(--raised);
  border: 1px solid var(--line);
  z-index: 999;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* ---------- Shell ---------- */

.shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.masthead {
  border-bottom: 1px solid var(--line-soft);
  background: var(--paper);
}

.masthead-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
}

.wordmark {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 640;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.15rem;
  font-family: var(--sans);
  font-size: 0.83rem;
  letter-spacing: -0.005em;
}
.nav a { color: var(--muted); text-decoration: none; padding: 0.15rem 0; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--ink);
}

main { flex: 1; }

/* The container matches the masthead so the text column starts under the
   wordmark. Prose inside is held to a short measure; figures and tables are
   allowed the full width. */
.wrap {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}
.wrap > * { max-width: var(--measure); }
.wrap > figure,
.wrap > .tablewrap,
.wrap > .readout { max-width: 46rem; }

/* ---------- Type ---------- */

.page-title {
  font-size: clamp(2rem, 5.5vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: -0.028em;
  margin: 0 0 1.25rem;
  font-weight: 600;
}

.standfirst {
  font-size: 1.28rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 2.5rem;
}

h2 {
  font-family: var(--sans);
  font-size: 1.02rem;
  font-weight: 660;
  letter-spacing: 0.005em;
  line-height: 1.35;
  margin: 3rem 0 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line-soft);
}

h3 {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 640;
  margin: 2rem 0 0.6rem;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.9rem;
}

.lede { font-size: 1.18rem; line-height: 1.55; }
.small { font-size: 0.92rem; color: var(--muted); line-height: 1.55; }
.mono { font-family: var(--mono); font-size: 0.86em; }

/* ---------- Evidence states ---------- */

.state {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 0.28rem 0.55rem;
  border-radius: 3px;
  white-space: nowrap;
  font-weight: 500;
}
.state-known { color: var(--known); background: var(--known-bg); }
.state-believed { color: var(--believed); background: var(--believed-bg); }
.state-unresolved { color: var(--unresolved); background: var(--unresolved-bg); }
.state-dead { color: var(--dead); background: var(--dead-bg); }

/* A claim carries its own evidence state and its own falsifier. */
.claim {
  margin: 1.75rem 0;
  padding: 1.35rem 1.5rem;
  background: var(--raised);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line);
  border-radius: 4px;
}
.claim.is-known { border-left-color: var(--known); }
.claim.is-believed { border-left-color: var(--believed); }
.claim.is-unresolved { border-left-color: var(--unresolved); }
.claim.is-dead { border-left-color: var(--dead); }
.claim > :first-child { margin-top: 0; }
.claim > :last-child { margin-bottom: 0; }
.claim p { margin: 0.7rem 0 0; }

.falsifier {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--line);
  font-size: 0.93rem;
  color: var(--ink-soft);
}
.falsifier b {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 500;
}

/* Inline source. Every number gets one. */
.src {
  font-family: var(--sans);
  font-size: 0.78em;
  color: var(--muted);
  white-space: nowrap;
}
.src a { text-decoration-color: var(--line); }

/* A glossed term, defined inline the first time it appears. */
.gloss {
  border-bottom: 1px dotted var(--muted);
  cursor: help;
}

/* ---------- Figures for numbers ---------- */

.readout {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--raised);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
}
.readout-value {
  font-family: var(--sans);
  font-size: clamp(2.4rem, 8vw, 3.4rem);
  font-weight: 660;
  letter-spacing: -0.045em;
  line-height: 1;
  display: block;
}
.readout-label {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0.7rem 0 0;
}

/* The gap bar: 50 percent expected against 34.1 percent measured. */
.gapbar { margin: 1.5rem 0 0; }
.gapbar-track {
  position: relative;
  height: 2.6rem;
  background: var(--line-soft);
  border-radius: 3px;
  overflow: hidden;
}
.gapbar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--unresolved-bg);
  border-right: 2px solid var(--unresolved);
}
.gapbar-mark {
  position: absolute;
  top: 0;
  bottom: 0;
  border-left: 2px dashed var(--muted);
}
.gapbar-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  margin-top: 0.65rem;
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- Lists and tables ---------- */

.route {
  padding: 1.4rem 0;
  border-top: 1px solid var(--line-soft);
}
.route:last-child { border-bottom: 1px solid var(--line-soft); }
.route-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  align-items: baseline;
  justify-content: space-between;
}
.route-name {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 640;
  margin: 0;
}
.route-blocker {
  margin: 0.7rem 0 0;
  font-size: 1rem;
  color: var(--ink);
}
.route-blocker b {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  display: block;
  margin-bottom: 0.25rem;
}
.route-detail { margin: 0.7rem 0 0; font-size: 0.97rem; color: var(--ink-soft); }

.paper {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line-soft);
}
.paper:last-child { border-bottom: 1px solid var(--line-soft); }
.paper-n {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.paper-title {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 620;
  line-height: 1.4;
  margin: 0.4rem 0 0.6rem;
}
.paper-plain { margin: 0; font-size: 1rem; color: var(--ink-soft); }
.paper-meta {
  margin: 0.75rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  align-items: center;
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
}

.tablewrap { overflow-x: auto; margin: 1.5rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.9rem;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.9rem 0.7rem 0;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
th {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

ul.plain { padding-left: 1.15rem; }
ul.plain li { margin: 0.6rem 0; }

.ask {
  margin: 0.9rem 0;
  padding: 1rem 1.2rem;
  background: var(--raised);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  font-size: 1.02rem;
}

/* ---------- Notices ---------- */

.notice {
  margin: 2rem 0;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 0.97rem;
  color: var(--ink-soft);
  background: var(--raised);
}
.notice b { color: var(--ink); }

.pending {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--believed);
  background: var(--believed-bg);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
}

/* ---------- Next links ---------- */

.next {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  font-family: var(--sans);
  font-size: 0.92rem;
}
.next a { font-weight: 560; }

/* ---------- Footer ---------- */

.foot {
  border-top: 1px solid var(--line-soft);
  padding: 2.5rem 1.5rem 3.5rem;
  font-family: var(--sans);
  font-size: 0.84rem;
  color: var(--muted);
}
.foot-inner { max-width: var(--wide); margin: 0 auto; }
.foot p { margin: 0.5rem 0; max-width: 46rem; }
.foot-rule {
  margin: 1.5rem 0;
  border: 0;
  border-top: 1px solid var(--line-soft);
}

@media (max-width: 40rem) {
  body { font-size: 1.08rem; }
  .wrap { padding: 2.5rem 1.25rem 4rem; }
  .masthead-inner { padding: 1rem 1.25rem; }
}

@media print {
  .masthead, .next { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
}


/* ---------- Manuscript pages ---------- */
/* These are standalone HTML, so they carry the base resets Tailwind would
   otherwise have supplied. */
* { box-sizing: border-box; }
body { margin: 0; }
.wrap h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.022em;
  font-weight: 600;
  margin: 0 0 1.5rem;
  max-width: var(--measure);
}
.wrap h2 { max-width: var(--measure); }
.wrap h3, .wrap h4 {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 640;
  margin: 2rem 0 0.6rem;
  max-width: var(--measure);
}
.wrap p, .wrap ul, .wrap ol, .wrap blockquote { max-width: var(--measure); }
.wrap li { margin: 0.45rem 0; }
.wrap blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 0 0.2rem 1.15rem;
  border-left: 3px solid var(--line);
  color: var(--ink-soft);
}
.wrap table {
  width: auto;
  min-width: 60%;
  max-width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.86rem;
}
.wrap th, .wrap td {
  padding: 0.55rem 1rem 0.55rem 0;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}
.wrap code {
  font-family: var(--mono);
  font-size: 0.84em;
  padding: 0.1em 0.35em;
  border-radius: 3px;
  background: var(--line-soft);
  overflow-wrap: anywhere;
}
.wrap pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  background: var(--raised);
}
.wrap pre code { background: none; padding: 0; }
.wrap hr { margin: 2.5rem 0; border: 0; border-top: 1px solid var(--line-soft); }
.wrap img { margin: 1.5rem 0; }
.backlink { margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line-soft); font-family: var(--sans); font-size: 0.92rem; }
/* Tables can exceed the prose measure; let them use the full container. */
.wrap > table { max-width: 100%; }