/* aula.css: every page's look. A page adds only its own layout, in a
   <style> of its own, which comes after this and so wins a tie.

   A reading room: warm paper, generous type, quiet chrome. What is read --
   a lesson, a passage, a message -- is set in a serif, as books are; what is
   pressed and filled in is Plex Sans. Mostly elements, few classes. Nothing
   here needs script. */

/* IBM Plex Sans and Plex Mono (OFL; PLEX-*-LICENSE.txt), served by aula
   itself: no font service. Latin only: Greek, Chinese and the rest come from
   the reader's own fonts, the reading stack below first. */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("plex-sans.woff2") format("woff2");
  font-weight: 100 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("plex-sans-italic.woff2") format("woff2");
  font-weight: 100 700;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("plex-mono.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --paper: #faf7f2;
  --card: #fffdf9;
  --ink: #2b2620;
  --dim: #7a7064;
  --line: #e6ded2;
  --accent: #a8502a;
  --accent-ink: #fff;
  --soft: #f2ebe0;
  --good: #3f7a4f;
  --bad: #a83a2a;
  --side: #f1ebe1;
  --side-ink: #4a4239;
  --side-hover: #e6ddcf;
  --note: #44679a;
  --important: #74539e;
  --warning: #9a6a1c;
  --space: 4px;
  --radius: 6px;
  --small: .875rem;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --read: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  /* Polytonic Greek wants a face that has it all */
  --greek: "Gentium Plus", "Palatino Linotype", "New Athena Unicode", "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1c1a17;
    --card: #24211d;
    --ink: #ece6dc;
    --dim: #a39886;
    --line: #3a352e;
    --accent: #e08a5e;
    --accent-ink: #1c1a17;
    --soft: #2c2823;
    --good: #7fbf8e;
    --bad: #e7826f;
    --side: #171512;
    --side-ink: #c9c0b3;
    --side-hover: #2a2621;
    --note: #8eaee0;
    --important: #bba0e2;
    --warning: #e0b264;
  }
}

* { box-sizing: border-box; }
/* What a page hides stays hidden, whatever display its element's rules give it */
[hidden] { display: none !important; }

html { font-size: 16px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.55 var(--sans);
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3 { line-height: 1.25; font-weight: 600; margin: 0 0 calc(var(--space) * 3); }
h1 { font-size: 1.75rem; letter-spacing: -.01em; }
h2 { font-size: 1.25rem; margin-top: calc(var(--space) * 8); }
h3 { font-size: 1.05rem; margin-top: calc(var(--space) * 6); }
p { margin: 0 0 calc(var(--space) * 3); }
small, .dim { color: var(--dim); }
small { font-size: var(--small); }
hr { border: 0; border-top: 1px solid var(--line); margin: calc(var(--space) * 2) 0; }
code, pre, textarea.source { font-family: var(--mono); font-size: .9em; }

/* ---- the bar and a space's places ---- */

header.bar {
  display: flex; align-items: center; gap: calc(var(--space) * 3);
  padding: calc(var(--space) * 3) calc(var(--space) * 5);
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.bar .brand { font-weight: 600; font-size: 1.1rem; color: var(--ink); text-decoration: none; letter-spacing: .02em; }
header.bar .brand::before { content: ""; display: inline-block; width: .9em; height: .9em; margin-inline-end: .4em; vertical-align: -.05em;
  border: 2px solid var(--accent); border-bottom: 0; border-radius: .5em .5em 0 0; }
header.bar .grow { flex: 1; }
header.bar .nav-button { display: none; cursor: pointer; font-size: 1.2rem; line-height: 1; color: var(--dim); }

main { max-width: 46rem; margin: 0 auto; padding: calc(var(--space) * 8) calc(var(--space) * 5) calc(var(--space) * 16); }
main.wide { max-width: 72rem; }
main.narrow { max-width: 26rem; }

/* ---- a space: the sidebar, and its places beside it ---- */

body.app { --bar: 3.25rem; }
body.app header.bar { height: var(--bar); padding-block: 0; }
.shell { display: grid; grid-template-columns: 16rem minmax(0, 1fr); min-height: calc(100dvh - var(--bar)); }
.shell main { width: 100%; max-width: 50rem; padding-top: calc(var(--space) * 7); }
.shell main.wide { max-width: 76rem; }
.side {
  background: var(--side); border-inline-end: 1px solid var(--line);
  padding: calc(var(--space) * 3) calc(var(--space) * 2) calc(var(--space) * 8);
  position: sticky; top: 0; height: calc(100dvh - var(--bar)); overflow-y: auto;
}
.side a { display: flex; align-items: center; gap: calc(var(--space) * 1.5); padding: calc(var(--space) * 1.25) calc(var(--space) * 3); border-radius: var(--radius); color: var(--side-ink); text-decoration: none; }
.side a:hover { background: var(--side-hover); }
.side a[aria-current] { background: var(--accent); color: var(--accent-ink); }
.side .space-menu > summary { font-weight: 600; font-size: 1.05rem; padding: calc(var(--space) * 1.5) calc(var(--space) * 3) calc(var(--space) * 3); color: var(--ink); }
.side .space-menu .pop { inset-inline-start: 0; inset-inline-end: auto; }
.side .space-menu .pop a { display: block; color: var(--ink); }
.side .space-menu .pop a[aria-current] { background: var(--soft); color: var(--ink); }
.side .places { display: grid; gap: 1px; margin-bottom: calc(var(--space) * 4); }
.side .side-space { font-weight: 600; font-size: 1.05rem; padding: calc(var(--space) * 1.5) calc(var(--space) * 3) calc(var(--space) * 3); margin: 0; color: var(--ink); }
.side .side-join { padding: 0 calc(var(--space) * 3); }
.side .side-join a { display: inline-flex; color: var(--accent-ink); }
.side .quiet-place { color: var(--dim); font-size: var(--small); }
.side-section { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); font-weight: 600; margin: calc(var(--space) * 2) calc(var(--space) * 3) var(--space); }
.channels { display: grid; gap: 1px; }
.channels .hash { color: var(--dim); width: .9em; }
.channels a[aria-current] .hash { color: inherit; }
.channels a.unread { font-weight: 600; color: var(--ink); }
.badge { margin-inline-start: auto; min-width: 1.4em; padding: 0 calc(var(--space) * 1.5); border-radius: 999px; background: var(--side-hover); color: var(--ink); font-size: .75rem; font-weight: 600; text-align: center; line-height: 1.5; }
.badge.mention { background: var(--bad); color: #fff; }
.in-call { margin-inline-start: auto; font-size: .75rem; color: var(--accent); white-space: nowrap; }
.in-call + .badge { margin-inline-start: var(--space); }
.side a[aria-current] .in-call { color: inherit; }
.side .ringing { position: fixed; inset-inline-start: 1rem; bottom: 1rem; z-index: 30; display: flex; gap: calc(var(--space) * 2); align-items: baseline;
  padding: calc(var(--space) * 3) calc(var(--space) * 4); border-radius: calc(var(--radius) * 2); background: var(--accent); color: var(--accent-ink);
  box-shadow: 0 8px 24px rgb(0 0 0 / .25); animation: ring 1s ease-in-out infinite alternate; }
.side .ringing span { font-weight: 600; text-decoration: underline; }
@keyframes ring { to { transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce) { .side .ringing { animation: none; } }
.add-channel { margin: calc(var(--space) * 2) calc(var(--space) * 3); font-size: var(--small); }
.add-channel > summary { color: var(--dim); }
.add-channel input { min-width: 0; }

@media (max-width: 760px) {
  header.bar .nav-button { display: block; }
  .shell { grid-template-columns: minmax(0, 1fr); }
  /* Folded away, though a call ringing in it still shows */
  .side { visibility: hidden; position: fixed; top: var(--bar); inset-inline-start: 0; inset-inline-end: 0; bottom: 0; z-index: 20; height: auto; border-inline-end: 0; }
  #nav-open:checked ~ .shell .side { visibility: visible; }
  .side .ringing { visibility: visible; inset-inline-end: 1rem; }
}

/* ---- menus (menus.js closes them) ---- */

details.menu { position: relative; }
details.menu summary { list-style: none; cursor: pointer; color: var(--ink); }
details.menu summary::-webkit-details-marker { display: none; }
details.menu summary::after { content: " ▾"; color: var(--dim); font-size: .8em; }
details.menu .pop {
  position: absolute; inset-inline-end: 0; top: calc(100% + var(--space) * 2); z-index: 10; min-width: 14rem;
  display: grid; gap: var(--space); padding: calc(var(--space) * 3);
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 8px 24px rgb(0 0 0 / .12);
}
details.menu .pop a, details.menu .pop button { display: block; text-align: start; width: 100%; padding: var(--space) calc(var(--space) * 2); color: var(--ink); text-decoration: none; border: 0; background: none; font: inherit; border-radius: var(--radius); cursor: pointer; }
details.menu .pop a:hover, details.menu .pop button:hover { background: var(--soft); }
details.menu.language summary { font-size: var(--small); color: var(--dim); white-space: nowrap; }
details.menu.language .pop { min-width: 12rem; max-height: 70vh; overflow-y: auto; }
details.menu.language .pop [aria-current] { font-weight: 600; }
details.menu.language .pop button { text-align: match-parent; } /* each its own direction, all on the menu's side */

/* ---- forms ---- */

label { display: grid; gap: var(--space); margin-bottom: calc(var(--space) * 3); font-size: var(--small); color: var(--dim); }
input, textarea, select {
  font: inherit; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: calc(var(--space) * 2) calc(var(--space) * 3);
  box-shadow: inset 0 1px 2px rgb(0 0 0 / .05);
  width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input[type=file] { padding: calc(var(--space) * 2); }
button, .button {
  display: inline-block; font: inherit; font-weight: 500; cursor: pointer; text-decoration: none;
  color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: calc(var(--space) * 2) calc(var(--space) * 4);
  box-shadow: 0 1px 1px rgb(0 0 0 / .06);
}
button:hover, .button:hover { border-color: var(--dim); }
button.primary, .button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.quiet { border-color: transparent; box-shadow: none; background: none; color: var(--dim); padding-inline: calc(var(--space) * 2); }
button.danger { color: var(--bad); }
button[aria-busy] { opacity: .6; }
form.inline { display: flex; gap: calc(var(--space) * 2); align-items: center; flex-wrap: wrap; }
form.inline input, form.inline select { width: auto; flex: 1; min-width: 10rem; }
details > summary { cursor: pointer; color: var(--accent); }
details[open] > summary { margin-bottom: calc(var(--space) * 3); }

.narrow-card { max-width: 26rem; margin: 0 auto; }
.after-form { margin-top: calc(var(--space) * 6); }
.error { color: var(--bad); }
.done { color: var(--good); }
.tag { display: inline-block; font-size: .75rem; padding: 0 calc(var(--space) * 1.5); border-radius: 999px; background: var(--soft); color: var(--dim); vertical-align: .1em; }

/* ---- cards and lists ---- */

.card { background: var(--card); border: 1px solid var(--line); border-radius: calc(var(--radius) * 1.5); padding: calc(var(--space) * 5); }
.cards { display: grid; gap: calc(var(--space) * 3); padding: 0; margin: 0 0 calc(var(--space) * 6); list-style: none; }
.cards a.card { display: block; color: inherit; text-decoration: none; }
.cards a.card:hover { border-color: var(--accent); }
.cards .card strong { display: block; font-size: 1.1rem; }

.cards .clamp { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin: var(--space) 0; }
.about { white-space: pre-line; color: var(--dim); }
progress { display: block; width: 100%; height: 4px; margin-top: calc(var(--space) * 3); border: 0; border-radius: 2px; background: var(--soft); appearance: none; overflow: hidden; }
progress::-webkit-progress-bar { background: var(--soft); }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }
form.invite { margin-bottom: calc(var(--space) * 2); }
form.invite input { font-family: var(--mono); font-size: var(--small); }
label.as { display: flex; align-items: center; gap: calc(var(--space) * 2); margin: 0; color: var(--ink); font-size: inherit; }
label.as select { width: auto; }

ol.lessons { list-style: none; padding: 0; margin: 0 0 calc(var(--space) * 6); counter-reset: lesson; border-top: 1px solid var(--line); }
ol.lessons li { counter-increment: lesson; border-bottom: 1px solid var(--line); }
ol.lessons a { display: flex; gap: calc(var(--space) * 3); align-items: baseline; padding: calc(var(--space) * 3) calc(var(--space) * 1); color: var(--ink); text-decoration: none; }
ol.lessons a:hover { background: var(--soft); }
ol.lessons a::before { content: counter(lesson); min-width: 2ch; color: var(--dim); font-variant-numeric: tabular-nums; text-align: end; }
ol.lessons .mark { margin-inline-start: auto; color: var(--good); }

table { border-collapse: collapse; width: 100%; font-size: var(--small); }
th, td { text-align: start; padding: calc(var(--space) * 2); border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 500; }
.scroll-x { overflow-x: auto; }
table.grid td.cell, table.grid th.cell { text-align: center; padding-inline: var(--space); width: 1.6rem; }
table.grid td.cell.yes::after { content: "●"; color: var(--accent); }
table.grid td.cell.no::after { content: "·"; color: var(--line); }

/* ---- a lesson ---- */

.crumbs { font-size: var(--small); color: var(--dim); margin-bottom: calc(var(--space) * 2); }
.crumbs a { color: var(--dim); }
.reading { font-family: var(--read); font-size: 1.125rem; line-height: 1.65; }
.reading h2, .reading h3 { font-family: var(--sans); }
.reading img { max-width: 100%; height: auto; border-radius: var(--radius); }
.reading blockquote { margin: 0 0 calc(var(--space) * 4); padding-inline-start: calc(var(--space) * 4); border-inline-start: 3px solid var(--line); color: var(--dim); }
.tracks { display: grid; grid-template-columns: repeat(var(--tracks, 2), minmax(0, 1fr)); gap: calc(var(--space) * 10); margin: calc(var(--space) * 6) 0; }
.track > h2 { font-family: var(--sans); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); margin: 0 0 calc(var(--space) * 3); }
[lang=grc], [lang=el] { font-family: var(--greek); }
.note { font-family: var(--sans); font-size: var(--small); color: var(--dim); background: var(--soft); border-radius: var(--radius); padding: calc(var(--space) * 3) calc(var(--space) * 4); margin: 0 0 calc(var(--space) * 6); }
.credit { font-family: var(--sans); font-size: var(--small); color: var(--dim); margin-top: calc(var(--space) * 8); }
.lesson-foot { display: flex; gap: calc(var(--space) * 3); align-items: center; justify-content: space-between; flex-wrap: wrap; margin-top: calc(var(--space) * 10); padding-top: calc(var(--space) * 5); border-top: 1px solid var(--line); }
.lesson-foot .next { margin-inline-start: auto; }
/* An arrow points the way the page reads */
[dir=rtl] .arrow { display: inline-block; transform: scaleX(-1); }

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

.page-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: calc(var(--space) * 2) calc(var(--space) * 4); margin-bottom: calc(var(--space) * 5); }
.page-head h1 { flex: 1 1 auto; margin: 0 auto 0 0; }
form.search { flex: 0 1 16rem; margin: 0; }
form.search input { width: 100%; }
.reading a.term { color: inherit; text-decoration: underline dotted var(--dim); text-underline-offset: .2em; }
.reading a.term:hover { color: var(--accent); text-decoration-color: var(--accent); }
.reading .missing { color: var(--dim); text-decoration: underline dashed var(--line); text-underline-offset: .2em; cursor: help; }
.reading :target { background: var(--soft); border-radius: var(--radius); }
.callout { --c: var(--note); font-family: var(--sans); font-size: 1rem; line-height: 1.55; margin: 0 0 calc(var(--space) * 5); padding: calc(var(--space) * 3) calc(var(--space) * 4); background: var(--soft); border-inline-start: 3px solid var(--c); border-start-end-radius: var(--radius); border-end-end-radius: var(--radius); }
.callout.tip { --c: var(--good); }
.callout.important { --c: var(--important); }
.callout.warning { --c: var(--warning); }
.callout.caution { --c: var(--bad); }
.callout-title { margin: 0 0 var(--space); color: var(--c); font-size: var(--small); font-weight: 600; letter-spacing: .02em; }
.callout > :last-child { margin-bottom: 0; }
/* aula's own blocks in a page: the page's words in its face, the platform's controls in its own */
.reading .component form, .reading .plans, .reading .latest small { font-family: var(--sans); font-size: 1rem; }
.reading .latest small { font-size: var(--small); }
.latest-posts small { display: block; }
.latest-posts { list-style: none; padding: 0; }
.latest-posts li { margin: 0 0 calc(var(--space) * 4); }
.signup form { margin-top: calc(var(--space) * 3); }
ol.lessons li.module { counter-increment: none; border-bottom: 0; padding-top: calc(var(--space) * 5); }
ol.lessons li.module > ol.lessons { margin-bottom: 0; }
.module-head { display: flex; gap: calc(var(--space) * 3); align-items: baseline; font-family: var(--sans); font-weight: 600; }
.module-head a { color: var(--ink); text-decoration: none; }
.module-head a:hover { color: var(--accent); }
.module-about { margin: var(--space) 0 calc(var(--space) * 3); font-size: var(--small); }
dl.terms { margin: 0 0 calc(var(--space) * 6); border-top: 1px solid var(--line); }
dl.terms > div { padding: calc(var(--space) * 3) calc(var(--space) * 1); border-bottom: 1px solid var(--line); }
dl.terms dt { font-weight: 600; }
dl.terms dt .dim { font-weight: 400; }
dl.terms dd { margin: var(--space) 0 0; color: var(--dim); font-size: var(--small); }
.aliases { margin-top: calc(var(--space) * -2); font-family: var(--read); }
.related { margin-top: calc(var(--space) * 8); }
.related h2 { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); margin-bottom: calc(var(--space) * 2); }
.related ul { margin: 0; padding-inline-start: calc(var(--space) * 5); }
.related li { margin-bottom: var(--space); }
ol.results { list-style: none; padding: 0; margin: calc(var(--space) * 6) 0; }
ol.results li { padding: calc(var(--space) * 3) 0; border-bottom: 1px solid var(--line); }
ol.results p { margin: var(--space) 0 0; color: var(--dim); font-size: var(--small); }
mark { background: color-mix(in srgb, var(--accent) 22%, transparent); color: inherit; border-radius: 2px; padding: 0 .1em; }
form.upload { display: flex; flex-wrap: wrap; gap: calc(var(--space) * 3); align-items: end; }
form.upload label { flex: 1 1 14rem; margin: 0; }
/* The page editor (pageedit.js): the page as it reads, written in place */
.ed-bar { position: sticky; top: 0; z-index: 3; display: flex; flex-wrap: wrap; gap: var(--space); align-items: center; padding: calc(var(--space) * 2) 0; margin-bottom: calc(var(--space) * 4); background: var(--paper); border-bottom: 1px solid var(--line); }
.ed-bar select { width: auto; }
.ed-bar button { padding: 2px calc(var(--space) * 3); min-width: 2.25rem; box-shadow: none; }
.ed-bar button[aria-pressed=true] { border-color: var(--accent); color: var(--accent); }
.ed-bar button:disabled { opacity: .4; cursor: default; }
.ed-bar .grow { flex: 1; }
.ed-mark { font-family: var(--mono); }
.ed-body { padding-bottom: calc(var(--space) * 6); }
.ed-row { display: flex; gap: var(--space); align-items: flex-start; }
.ed-row > .ed-el { flex: 1; min-width: 0; }
.ed-menu > summary, .ed-add > summary { color: var(--dim); padding: 0 var(--space); border-radius: var(--radius); user-select: none; font-family: var(--sans); }
.ed-menu > summary { opacity: 0; line-height: 1.9; }
.ed-row:hover > .ed-menu > summary, .ed-row:focus-within > .ed-menu > summary, .ed-menu[open] > summary { opacity: 1; }
details.menu.ed-menu summary::after, details.menu.ed-add summary::after { content: none; }
details.menu.ed-menu .pop, details.menu.ed-add .pop { inset-inline-end: auto; inset-inline-start: 0; font-family: var(--sans); font-size: 1rem; }
details.menu.ed-add .pop { max-height: 60vh; overflow-y: auto; }
.ed-add { display: inline-block; margin: var(--space) 0 calc(var(--space) * 3); }
.ed-add > summary { display: inline-block; border: 1px dashed var(--line); padding: 0 calc(var(--space) * 3); }
.ed-words { outline: none; border-radius: var(--radius); min-height: 1.55em; margin-top: 0; }
.ed-words:focus { background: var(--soft); box-shadow: 0 0 0 4px var(--soft); }
.ed-words:empty::before { content: attr(data-placeholder); color: var(--dim); font-style: italic; }
.ed-head { display: flex; flex-wrap: wrap; gap: var(--space) calc(var(--space) * 3); align-items: center; margin-bottom: calc(var(--space) * 2); font-family: var(--sans); font-size: var(--small); font-style: normal; color: var(--dim); }
.ed-name { font-weight: 600; letter-spacing: .02em; }
.ed-head label { display: inline-flex; gap: var(--space); align-items: center; margin: 0; }
.ed-head input, .ed-head select { width: auto; padding: 1px calc(var(--space) * 2); font-size: var(--small); }
.ed-head input:invalid { border-color: var(--bad); }
.ed-el { margin-bottom: calc(var(--space) * 2); }
.ed-page > .ed-parts-title .ed-words { font-family: var(--sans); font-size: 2rem; font-weight: 600; line-height: 1.25; }
.ed-page > .ed-parts:not(:has(.ed-part)) { display: inline-block; margin-inline-end: calc(var(--space) * 2); }
.ed-part { position: relative; display: flex; gap: var(--space); align-items: flex-start; }
.ed-part > .ed-el { flex: 1; min-width: 0; }
.ed-x { padding: 0 var(--space); color: var(--dim); opacity: 0; }
.ed-part:hover > .ed-x, .ed-part:focus-within > .ed-x { opacity: 1; }
.ed-more { font-size: var(--small); font-family: var(--sans); padding-inline: var(--space); }
/* Items come by Enter, and go in by Tab */
.ed-parts-li > .ed-more { display: none; }
.ed-page > .ed-head { display: inline-flex; margin-inline-end: calc(var(--space) * 3); }
.ed-parts-button .ed-words { display: inline-block; min-width: 8rem; padding: var(--space) calc(var(--space) * 4); border-radius: var(--radius); background: var(--accent); color: var(--accent-ink); font-family: var(--sans); font-weight: 500; }
.ed-parts-button .ed-words:focus { background: var(--accent); box-shadow: 0 0 0 3px var(--soft); }
.ed-alias .ed-words, .ed-note .ed-words, .ed-credit .ed-words { font-size: var(--small); font-family: var(--sans); color: var(--dim); }
.ed-ul .ed-li, .ed-ol .ed-li { display: list-item; margin-inline-start: 1.4em; }
.ed-ul .ed-li { list-style: disc; }
.ed-ol { counter-reset: list-item; }
.ed-ol .ed-li { list-style: decimal; }
.ed-blockquote { border-inline-start: 3px solid var(--line); padding-inline-start: calc(var(--space) * 4); }
.ed-own { border: 1px dashed var(--line); border-radius: var(--radius); padding: calc(var(--space) * 3) calc(var(--space) * 4); }
.ed-text { width: 100%; font-family: var(--mono); font-size: .9em; resize: vertical; }
.ed-table table { border-collapse: collapse; font-size: 1rem; }
.ed-table td, .ed-table th { border: 1px solid var(--line); padding: var(--space) calc(var(--space) * 2); min-width: 5rem; vertical-align: top; text-align: start; }
.ed-table-tools { display: flex; flex-wrap: wrap; gap: var(--space); align-items: center; margin-top: var(--space); font-family: var(--sans); font-size: var(--small); }
.ed-grid { overflow-x: auto; }
.ed-tracks > .ed-parts { display: grid; gap: calc(var(--space) * 4); grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.ed-tracks > .ed-parts > .ed-more { grid-column: 1 / -1; justify-self: start; }
.ed-chip { font-family: var(--mono); font-size: .8em; background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 var(--space); color: var(--dim); }
a.ed-link { text-decoration-style: dotted; }
.ed-raw { color: var(--dim); }
.cheat dl { font-size: var(--small); }
.cheat dt { margin-top: calc(var(--space) * 2); }
.cheat dd { margin: 0 0 0 calc(var(--space) * 4); color: var(--dim); }

@media (max-width: 760px) {
  .tracks { grid-template-columns: minmax(0, 1fr); gap: calc(var(--space) * 6); }
  main { padding-top: calc(var(--space) * 5); }
  h1 { font-size: 1.45rem; }
}

/* ---- chat ---- */

.shell main:has(.chat) { max-width: none; padding: 0; }
.chat { display: grid; grid-template-columns: minmax(0, 1fr); height: calc(100dvh - var(--bar)); }
.chat.with-thread { grid-template-columns: minmax(0, 1fr) minmax(18rem, 28rem); }
.room, .thread { display: grid; grid-template-rows: auto 1fr auto; min-height: 0; }
.room:has(.huddle) { grid-template-rows: auto auto 1fr auto; }
.call-button { margin-inline-start: auto; padding: var(--space) calc(var(--space) * 3); font-size: var(--small); }
.call-button:not([hidden]) ~ .room-menu { margin-inline-start: 0; }

/* A channel's call, as a huddle above its messages */
.huddle { display: grid; gap: calc(var(--space) * 2); padding: calc(var(--space) * 3) calc(var(--space) * 6); border-bottom: 1px solid var(--line); background: var(--side); max-height: 40vh; overflow: auto; }
.huddle.big { max-height: 65vh; }
.huddle[hidden] { display: none; }
#tiles { display: flex; gap: calc(var(--space) * 2); overflow-x: auto; }
#tiles .tile { flex: 0 0 9rem; }
.huddle.big #tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); }
#screens { display: grid; gap: calc(var(--space) * 2); }
#screens:empty { display: none; }
#screens .tile { aspect-ratio: 16 / 9; max-height: 22rem; background: #111; }
.huddle.big #screens .tile { max-height: 60vh; }
.tile { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-radius: calc(var(--radius) * 2);
  background: color-mix(in srgb, var(--c, #888) 30%, #1c1a17); outline: 2px solid transparent; outline-offset: -2px; }
.tile video { width: 100%; height: 100%; object-fit: cover; display: block; }
#screens .tile video { object-fit: contain; }
.tile.mine video.camera { transform: scaleX(-1); }
.tile:not(.seen) video { visibility: hidden; }
.tile .avatar { position: absolute; inset: 0; margin: auto; width: 2.4rem; height: 2.4rem; border-radius: 50%;
  display: grid; place-items: center; background: var(--c, #888); color: #fff; font-weight: 600; }
.tile.seen .avatar { display: none; }
.tile .name { position: absolute; inset-inline-start: 6px; bottom: 6px; max-width: calc(100% - 12px); padding: 0 6px; border-radius: 4px;
  background: rgb(0 0 0 / .5); color: #fff; font-size: .75rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .name .muted::before { content: "🔇 "; }
.tile.speaking { outline-color: var(--accent); }
.tile.waiting { opacity: .55; }
.huddle-bar { display: flex; gap: calc(var(--space) * 2); align-items: center; flex-wrap: wrap; }
.huddle-bar button { padding: var(--space) calc(var(--space) * 3); font-size: var(--small); }
.huddle-bar button[aria-pressed="true"] { border-color: var(--accent); }
#call-status { flex: 1; font-size: var(--small); color: var(--dim); }
.thread { border-inline-start: 1px solid var(--line); background: var(--card); }
.room-head { display: flex; align-items: baseline; gap: calc(var(--space) * 3); padding: calc(var(--space) * 3) calc(var(--space) * 6); border-bottom: 1px solid var(--line); }
.room-head h1, .room-head h2 { font-size: 1.15rem; margin: 0; }
.room-head h1 .hash { color: var(--dim); margin-inline-end: .15em; }
.room-head .topic { margin: 0; color: var(--dim); font-size: var(--small); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; min-width: 0; }
.room-head h1, .room-head h2, .room-head .call-button, .room-head .room-menu { flex: none; }
.room-head .room-menu, .room-head .close { margin-inline-start: auto; font-size: var(--small); }
.room-head .close { color: var(--dim); text-decoration: none; }
.wide-pop { min-width: 22rem; }
.room .scroll, .thread .scroll { display: flex; flex-direction: column-reverse; overflow-y: auto; min-height: 0; }
#messages, #replies, .thread-root { list-style: none; margin: 0; padding: calc(var(--space) * 3) calc(var(--space) * 6); }
.thread-root { padding-bottom: 0; border-bottom: 1px solid var(--line); }
#messages:empty::before { content: "No one has said anything yet."; color: var(--dim); }
.msg { position: relative; padding: calc(var(--space) * 2) calc(var(--space) * 3); margin: 0 calc(var(--space) * -3); border-radius: var(--radius); }
.msg:hover { background: var(--soft); }
.msg.for-me { background: var(--soft); box-shadow: inset 3px 0 0 var(--accent); }
.msg .who { font-weight: 600; }
.msg .who.mine { color: var(--accent); }
.msg time { margin-inline-start: calc(var(--space) * 2); font-size: .75rem; color: var(--dim); font-variant-numeric: tabular-nums; }
.msg-head small { margin-inline-start: calc(var(--space) * 2); font-size: .75rem; }
.msg p { margin: .1rem 0 0; white-space: pre-wrap; overflow-wrap: anywhere; font-family: var(--read); font-size: 1.05rem; }
.msg.gone p { font-family: var(--sans); font-size: var(--small); font-style: italic; }
.msg .mention { color: var(--accent); font-weight: 600; font-family: var(--sans); font-size: .95em; }
.msg .warn, li.warn { color: var(--bad); }
.files { display: flex; flex-wrap: wrap; gap: calc(var(--space) * 2); margin-top: calc(var(--space) * 2); }
.files .image img { display: block; max-width: min(100%, 20rem); max-height: 15rem; border-radius: var(--radius); border: 1px solid var(--line); }
.files .file { display: inline-flex; gap: calc(var(--space) * 2); align-items: baseline; padding: calc(var(--space) * 2) calc(var(--space) * 3); border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink); text-decoration: none; }
.reactions { display: flex; flex-wrap: wrap; gap: calc(var(--space) * 1.5); margin-top: calc(var(--space) * 1.5); }
.reaction { padding: 0 calc(var(--space) * 2); border-radius: 999px; font-size: var(--small); box-shadow: none; }
.reaction.mine { border-color: var(--accent); background: var(--soft); }
.replies { display: inline-block; margin-top: calc(var(--space) * 1.5); font-size: var(--small); font-weight: 600; text-decoration: none; }
.replies small { font-weight: 400; color: var(--dim); }
details.menu.msg-menu { position: absolute; top: calc(var(--space) * 1); inset-inline-end: calc(var(--space) * 2); opacity: 0; }
.msg:hover .msg-menu, .msg-menu:focus-within, .msg-menu[open] { opacity: 1; }
.msg-menu > summary { padding: 0 calc(var(--space) * 2); border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--dim); line-height: 1.6; }
.msg-menu > summary::after { content: none; }
.msg-menu .pop { min-width: 15rem; }
.react-row { display: flex; flex-wrap: wrap; gap: 2px; }
.react-row button { padding: var(--space) calc(var(--space) * 1.5); font-size: 1.05rem; }
.msg-menu details.edit > summary { color: var(--ink); padding: var(--space) calc(var(--space) * 2); }
.msg-menu textarea { margin-bottom: calc(var(--space) * 2); }
.composer { display: flex; gap: calc(var(--space) * 2); align-items: center; padding: calc(var(--space) * 3) calc(var(--space) * 6) calc(var(--space) * 4); border-top: 1px solid var(--line); }
.composer .attach { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; margin: 0; flex: none; border: 1px solid var(--line); border-radius: var(--radius); color: var(--dim); font-size: 1.2rem; cursor: pointer; }
.composer .attach:hover { border-color: var(--dim); color: var(--ink); }
ul.threads { list-style: none; padding: 0; display: grid; gap: calc(var(--space) * 3); }
ul.threads .card { padding: calc(var(--space) * 4); }
ul.threads .unread { border-color: var(--accent); }
.thread-where { font-size: var(--small); color: var(--dim); margin-bottom: var(--space); }
.thread-root-line { display: flex; gap: calc(var(--space) * 2); margin-bottom: var(--space); overflow: hidden; }
.thread-root-line span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink); }
@media (max-width: 760px) {
  .room-head, #messages, #replies, .thread-root, .composer { padding-inline: calc(var(--space) * 4); }
  .chat.with-thread { grid-template-columns: minmax(0, 1fr); }
  .chat.with-thread .room { display: none; }
  details.menu.msg-menu { opacity: 1; }
  .room-head { gap: calc(var(--space) * 2); }
  .room-head .topic { display: none; }
  .wide-pop { min-width: min(22rem, calc(100vw - 2rem)); }
}

/* ---- people, settings ---- */

h2.first { margin-top: 0; }
ul.people { list-style: none; padding: 0; margin: 0 0 calc(var(--space) * 6); border-top: 1px solid var(--line); }
ul.people > li { padding: calc(var(--space) * 3) 0; border-bottom: 1px solid var(--line); }
.person-line { display: flex; align-items: baseline; gap: calc(var(--space) * 2); flex-wrap: wrap; }
.person-line .email { margin-inline-start: auto; }
.tag.accent { background: var(--accent); color: var(--accent-ink); }
details.manage { margin-top: calc(var(--space) * 2); font-size: var(--small); }
.member-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 0 calc(var(--space) * 3); align-items: end; }
.member-form fieldset, .member-form button { grid-column: 1 / -1; justify-self: start; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: calc(var(--space) * 3) calc(var(--space) * 4); margin: 0 0 calc(var(--space) * 4); }
legend { color: var(--dim); font-size: var(--small); padding: 0 var(--space); }
label.tick, label.choice { display: inline-flex; flex-direction: row; align-items: center; gap: calc(var(--space) * 2); margin: 0 calc(var(--space) * 4) calc(var(--space) * 2) 0; color: var(--ink); font-size: inherit; }
label.tick input, label.choice input { width: auto; box-shadow: none; }
label.choice { display: flex; flex-wrap: wrap; }
label.choice small { flex-basis: 100%; padding-inline-start: 1.6rem; }
.choices { display: flex; flex-wrap: wrap; align-items: center; gap: calc(var(--space) * 2); }
.plain-list { list-style: none; padding: 0; }
.plain-list li { display: flex; align-items: center; gap: calc(var(--space) * 2); padding: var(--space) 0; }
.inline-form { margin-inline-start: auto; }
.card > label:last-of-type, .card fieldset:last-of-type { margin-bottom: calc(var(--space) * 4); }
.place-setting { padding-top: calc(var(--space) * 2); }
.place-setting > legend { text-transform: capitalize; }
.place-setting .row { display: flex; gap: calc(var(--space) * 3); align-items: end; flex-wrap: wrap; }
.place-setting .row label:first-child { flex: 1; min-width: 12rem; }
.narrow-field input { width: 5rem; }
.audience { margin-bottom: 0; }
.plan-row { margin-bottom: calc(var(--space) * 2); }

/* ---- the feed ---- */

.side .places a.unread { font-weight: 600; color: var(--ink); }
.side .places .badge { margin-inline-start: auto; }
.chips { display: flex; gap: calc(var(--space) * 2); flex-wrap: wrap; margin-bottom: calc(var(--space) * 5); }
.chips a { padding: var(--space) calc(var(--space) * 3); border: 1px solid var(--line); border-radius: 999px; color: var(--ink); text-decoration: none; font-size: var(--small); }
.chips a[aria-current] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
details.write { margin-bottom: calc(var(--space) * 5); }
details.write > summary { color: var(--dim); }
details.write form { display: grid; gap: calc(var(--space) * 3); }
details.write .row { display: flex; gap: calc(var(--space) * 3); justify-content: flex-end; }
details.write select { width: auto; }
ol.posts { list-style: none; padding: 0; margin: 0; display: grid; gap: calc(var(--space) * 3); }
ol.posts .empty { padding: calc(var(--space) * 4) 0; }
.post.pinned { border-color: var(--accent); }
.post-head { display: flex; align-items: baseline; gap: calc(var(--space) * 2); flex-wrap: wrap; font-size: var(--small); }
.post-head .who { font-weight: 600; font-size: 1rem; }
.post-head .who.mine { color: var(--accent); }
.post-head time { color: var(--dim); }
.post h2 { font-size: 1.15rem; margin: calc(var(--space) * 2) 0; }
.post h2 a { color: var(--ink); text-decoration: none; }
.post h2 a:hover { text-decoration: underline; }
.post h1 { margin: calc(var(--space) * 3) 0; }
.post-body { white-space: pre-wrap; overflow-wrap: anywhere; font-family: var(--read); font-size: 1.05rem; }
.post-body .mention, .comment .mention { color: var(--accent); font-weight: 600; font-family: var(--sans); font-size: .95em; }
.post.whole .post-body { font-size: 1.125rem; line-height: 1.65; }
.post-foot { display: flex; gap: calc(var(--space) * 3); align-items: center; flex-wrap: wrap; font-size: var(--small); }
.post-foot form { margin: 0; }
button.like { padding: 0 calc(var(--space) * 3); border-radius: 999px; font-size: var(--small); box-shadow: none; }
button.like.mine { border-color: var(--accent); color: var(--accent); background: var(--soft); }
.post-menu { margin-inline-start: auto; }
.post-menu > summary::after { content: none; }
.post-menu .pop form { display: grid; gap: calc(var(--space) * 2); }
.post-foot details.edit form, .post-menu details.edit form { display: grid; gap: calc(var(--space) * 2); }
.post.whole { margin-bottom: calc(var(--space) * 6); }
ol.comments { list-style: none; padding: 0; margin: 0 0 calc(var(--space) * 4); border-top: 1px solid var(--line); }
.comment { padding: calc(var(--space) * 3) 0; border-bottom: 1px solid var(--line); }
.comment p { margin: var(--space) 0; white-space: pre-wrap; overflow-wrap: anywhere; font-family: var(--read); font-size: 1.05rem; }
.comment-composer { padding: 0; border: 0; align-items: flex-end; }
.comment-composer textarea { flex: 1; }
.older { text-align: center; margin-top: calc(var(--space) * 6); }

/* ---- the calendar ---- */

.day h2 { font-size: 1rem; margin: calc(var(--space) * 6) 0 calc(var(--space) * 2); }
ol.events { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.event { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: calc(var(--space) * 3); padding: calc(var(--space) * 3) 0; border-bottom: 1px solid var(--line); }
.event.now { box-shadow: inset 3px 0 0 var(--accent); padding-inline-start: calc(var(--space) * 3); }
[dir=rtl] .event.now { box-shadow: inset -3px 0 0 var(--accent); }
.event-time { font-variant-numeric: tabular-nums; color: var(--dim); }
.event .about { margin: var(--space) 0 0; font-size: var(--small); }
.event-actions { display: flex; gap: calc(var(--space) * 3); align-items: center; flex-wrap: wrap; margin-top: calc(var(--space) * 2); }
.event-actions form { margin: 0; }
details.edit-event { flex-basis: 100%; font-size: var(--small); }
.event-form { display: grid; gap: calc(var(--space) * 2); }
.event-form .row { display: flex; gap: calc(var(--space) * 3); flex-wrap: wrap; align-items: end; }
.event-form .row label { margin-bottom: 0; }
.add-event { margin-top: calc(var(--space) * 6); }
.subscribe { display: flex; gap: calc(var(--space) * 2); flex-wrap: wrap; align-items: center; }
.subscribe .feed-link { flex: 1; min-width: 14rem; font-family: var(--mono); font-size: var(--small); }
@media (max-width: 760px) {
  .event { grid-template-columns: minmax(0, 1fr); gap: var(--space); }
}

/* ---- money ---- */

.money-month { font-size: 1.6rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.money-month small { font-size: var(--small); font-weight: 400; }
form.inline input.country { flex: 0 0 4.5rem; min-width: 0; text-transform: uppercase; }
form.inline input.price { flex: 0 0 7rem; min-width: 0; }
table.prices form.inline { row-gap: var(--space); }
table.prices form.inline select, label.as select { flex: 0 0 auto; min-width: 0; width: auto; }
form.inline-button { display: inline; margin-inline-start: var(--space); }
td { font-variant-numeric: tabular-nums; }
tr.dim td { color: var(--dim); }
.actions { display: flex; gap: calc(var(--space) * 3); flex-wrap: wrap; align-items: center; }
.plan-card { display: grid; gap: var(--space); }
.plan-card .price { font-size: 1.15rem; font-weight: 600; }
.plan-card form { margin-top: calc(var(--space) * 2); }
.cards.plans { max-width: 28rem; margin: calc(var(--space) * 4) auto 0; text-align: start; }
.about-hero .about { font-family: var(--read); font-size: 1.15rem; color: var(--dim); max-width: 34rem; margin: 0 auto calc(var(--space) * 8); }

/* ---- the front page ---- */

.hero { text-align: center; padding: calc(var(--space) * 16) 0 calc(var(--space) * 10); }
.hero h1 { font-size: 2.6rem; }
.hero p { font-family: var(--read); font-size: 1.25rem; color: var(--dim); max-width: 32rem; margin: 0 auto calc(var(--space) * 8); }
.hero .actions { display: flex; gap: calc(var(--space) * 3); justify-content: center; flex-wrap: wrap; }

#live-error { position: fixed; left: 50%; bottom: calc(var(--space) * 4); transform: translateX(-50%); max-width: 90vw;
  background: var(--bad); color: #fff; padding: calc(var(--space) * 2) calc(var(--space) * 4); border-radius: var(--radius); cursor: pointer; }