:root {
  --paper: #f3eee4;
  --paper-2: #ebe4d6;
  --ink: #1b1714;
  --mute: #6a6359;
  --line: #d4cbb8;
  --mark: #e7dcc8;
  --link: #6a3224;
  --miss: #8a4a22;
  --focus: #2c241c;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 "Iowan Old Style", Palatino, "Palatino Linotype", "Times New Roman", serif;
}

#app {
  height: 100%;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mast {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.1rem 0.6rem;
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}

.mast h1 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.byline, .status {
  margin: 0.15rem 0 0;
  color: var(--mute);
  font-size: 0.78rem;
}

.cols {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr) 19rem;
}

.col {
  min-height: 0;
  overflow: auto;
}

.nav {
  border-right: 1px solid var(--line);
  background: var(--paper-2);
  padding: 0.75rem 0 1.5rem;
}

#search {
  display: block;
  width: calc(100% - 1.6rem);
  margin: 0 0.8rem 0.7rem;
  padding: 0.25rem 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: 13px/1.4 system-ui, sans-serif;
  outline: none;
}

#search:focus {
  border-bottom-color: var(--ink);
}

#nav-list {
  font: 13px/1.35 system-ui, sans-serif;
}

#nav-list a {
  display: block;
  padding: 0.28rem 0.9rem;
  color: inherit;
  text-decoration: none;
}

#nav-list a:hover {
  background: rgba(0, 0, 0, 0.04);
}

#nav-list a.on {
  background: var(--mark);
}

#nav-list .num {
  display: inline-block;
  min-width: 1.4rem;
  color: var(--mute);
  font-variant-numeric: tabular-nums;
}

#nav-list .hit {
  color: var(--mute);
  padding: 0.28rem 0.9rem 0.1rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#nav-list .sub {
  padding-left: 1.6rem;
}

#nav-list .sub .num {
  min-width: 2.4rem;
}

.read {
  padding: 1.6rem 0 4rem;
}

.read > h1,
.read > h2,
.read > h3,
.read > ul,
.read article,
.read > p {
  max-width: 38rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.read h1 {
  margin-top: 0;
  margin-bottom: 1.2rem;
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.2;
}

.read h1 .num {
  color: var(--mute);
  font-weight: 500;
}

.read h2 {
  margin: 1.4rem auto 0.7rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.read p {
  margin: 0 0 0.9rem;
}

.prop, .term {
  max-width: 38rem;
  margin: 0 auto 1.15rem;
  padding: 0.35rem 1.5rem 0.15rem;
  border-left: 3px solid transparent;
}

.prop.on, .term.on {
  background: var(--mark);
  border-left-color: var(--link);
}

.prop h3, .term h3 {
  margin: 0 0 0.25rem;
  font-size: 0.92rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.prop h3 a, .term h3 a {
  color: var(--link);
  text-decoration: none;
}

.prop p, .term p {
  margin: 0 0 0.4rem;
}

.read a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(106, 50, 36, 0.35);
}

.read a:hover {
  border-bottom-color: var(--link);
}

.read a.missing {
  color: var(--miss);
  border-bottom-style: dotted;
}

.read code {
  font: 0.86em/1.4 ui-monospace, Menlo, monospace;
  background: rgba(0, 0, 0, 0.05);
  padding: 0.05em 0.28em;
}

.side {
  border-left: 1px solid var(--line);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  position: relative;
}

#panel {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.85rem 0.95rem 1.2rem;
  font: 13px/1.4 system-ui, sans-serif;
}

#panel h2 {
  margin: 0 0 0.55rem;
  font: 600 0.78rem/1.3 "Iowan Old Style", Palatino, serif;
}

#panel h3 {
  margin: 0.9rem 0 0.25rem;
  color: var(--mute);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#panel li {
  margin: 0 0 0.28rem;
}

#panel a {
  color: inherit;
  text-decoration: none;
}

#panel a:hover {
  color: var(--link);
}

#panel .num {
  color: var(--link);
  font-variant-numeric: tabular-nums;
}

#panel .snip {
  color: var(--mute);
}

#panel .empty {
  color: var(--mute);
}

#panel .missing {
  color: var(--miss);
}

#graph {
  flex: 0 0 250px;
  height: 250px;
  width: 100%;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: #e7e0d2;
}

.tabs {
  display: none;
}

@media (max-width: 760px) {
  .mast {
    padding: 0.5rem 0.9rem 0.45rem;
  }

  .status {
    display: none;
  }

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

  .col {
    display: none;
  }

  #app[data-pane="nav"] .pane-nav,
  #app[data-pane="read"] .pane-read {
    display: block;
  }

  #app[data-pane="side"] .pane-side {
    display: flex;
  }

  .nav,
  .side {
    border: 0;
  }

  #search {
    font-size: 16px;
    padding: 0.4rem 0;
  }

  #nav-list {
    font-size: 15px;
  }

  #nav-list a {
    padding: 0.55rem 0.9rem;
  }

  .read {
    padding: 1rem 0 2.5rem;
  }

  .read > h1,
  .read > h2,
  .read article,
  .read > p,
  .prop,
  .term {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .read h1 {
    font-size: 1.35rem;
  }

  #panel {
    font-size: 14px;
  }

  #panel li {
    margin-bottom: 0.5rem;
  }

  #graph {
    flex: 0 0 45vh;
    height: 45vh;
  }

  .tabs {
    display: flex;
    flex: 0 0 auto;
    border-top: 1px solid var(--line);
    background: var(--paper-2);
    padding-bottom: env(safe-area-inset-bottom);
  }

  .tabs button {
    flex: 1;
    min-height: 48px;
    border: 0;
    background: transparent;
    color: var(--mute);
    font: 600 13px/1 system-ui, sans-serif;
    letter-spacing: 0.04em;
    -webkit-tap-highlight-color: transparent;
  }

  .tabs button.on {
    background: var(--mark);
    color: var(--ink);
  }
}