/* Reading Room: the editor's-desk tokens from site/styles.css, with system fonts
   (no third-party requests from reading pages). */
:root {
  color-scheme: light dark;
  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
  --sans: "Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --paper: #f6f1e7; --paper-deep: #ede6d8; --surface: #fbf8f2; --surface-deep: #f2ece0;
  --ink: #1c1a17; --ink-soft: #57524a; --ink-faint: #8a8378;
  --line: rgba(28, 26, 23, 0.14); --line-strong: rgba(28, 26, 23, 0.32);
  --accent: #a4572a; --accent-ink: #8a4520; --accent-wash: rgba(164, 87, 42, 0.1);
  --moss: #5c6a33; --bad: #a23a2a;
  --shadow: 0 1px 0 rgba(28, 26, 23, 0.04), 0 18px 40px -24px rgba(28, 26, 23, 0.28);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #121413; --paper-deep: #181b19; --surface: #1c1f1d; --surface-deep: #161917;
  --ink: #f2ede4; --ink-soft: #bdb6ab; --ink-faint: #8d877d;
  --line: rgba(242, 237, 228, 0.13); --line-strong: rgba(242, 237, 228, 0.3);
  --accent: #e29a68; --accent-ink: #f0b489; --accent-wash: rgba(226, 154, 104, 0.12);
  --moss: #a6b57a; --bad: #e98a76; --shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.6);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121413; --paper-deep: #181b19; --surface: #1c1f1d; --surface-deep: #161917;
    --ink: #f2ede4; --ink-soft: #bdb6ab; --ink-faint: #8d877d;
    --line: rgba(242, 237, 228, 0.13); --line-strong: rgba(242, 237, 228, 0.3);
    --accent: #e29a68; --accent-ink: #f0b489; --accent-wash: rgba(226, 154, 104, 0.12);
    --moss: #a6b57a; --bad: #e98a76; --shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.6);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 16px/1.5 var(--sans); min-height: 100vh; }
button, input, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.tag { font: 500 11.5px/1 var(--mono); letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); }
.hint { font: 400 12.5px/1.4 var(--sans); color: var(--ink-soft); }
.mono { font-family: var(--mono); }

/* chrome */
.top { display: flex; align-items: center; gap: 14px; padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font: 500 19px/1 var(--serif); letter-spacing: -0.01em; color: inherit; text-decoration: none; }
.brand span { color: var(--accent); }
.brand small { font: 500 11px var(--mono); letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-soft); margin-left: 10px; }
.top .sp { flex: 1; }
.who { font: 13px var(--sans); color: var(--ink-soft); }
.who .mono { color: var(--ink); }
.icon { border: 1px solid var(--line); background: transparent; width: 36px; height: 36px; border-radius: 2px; display: grid; place-items: center; cursor: pointer; }
.icon svg { width: 18px; height: 18px; }
.btn { display: inline-block; text-decoration: none; text-align: center; font: 600 15px var(--sans); padding: 11px 18px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); border-radius: 2px; cursor: pointer; }
.btn.alt { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn.small { font-size: 13.5px; padding: 7px 12px; }
.btn:disabled { opacity: 0.5; cursor: default; }
.linkish { background: none; border: 0; padding: 0; color: var(--accent); cursor: pointer; font: 500 13.5px var(--sans); }
.note { font: 14px/1.5 var(--sans); color: var(--ink-soft); border-left: 3px solid var(--accent); background: var(--accent-wash); padding: 10px 14px; margin: 14px 0 0; }
.note.bad { border-color: var(--bad); }
.err { color: var(--bad); font: 14px var(--sans); }
.loading { padding: 60px 20px; text-align: center; color: var(--ink-faint); }

/* terms and agreement */
.agree { max-width: 680px; margin: 44px auto; padding: 0 16px; }
.agree h1 { font: 500 34px/1.15 var(--serif); margin: 10px 0 14px; }
.card { background: var(--surface); border: 1px solid var(--line); padding: 22px 24px; box-shadow: var(--shadow); }
.terms { display: grid; grid-template-columns: 120px 1fr; gap: 10px 16px; margin: 0; font: 16px/1.5 var(--serif); }
.terms dt { font: 500 11.5px/1.9 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.terms dd { margin: 0; }
.btnrow { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; align-items: center; }
.agreement-body { font: 16px/1.6 var(--serif); max-height: 52vh; overflow: auto; padding-right: 8px; }
.agreement-body h3 { font: 600 15px var(--sans); margin: 18px 0 6px; }
.agreement-body p { margin: 0 0 10px; }
.agreement-body .li { margin-left: 1.2em; }
.agreement-body .li::before { content: "\2022"; display: inline-block; width: 1em; margin-left: -1em; }
label.f { display: grid; gap: 6px; font: 600 14px var(--sans); margin: 18px 0 0; }
.check { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font: 15px var(--sans); }
.check input { margin-top: 4px; accent-color: var(--accent); }
textarea, input[type="text"], input[type="number"] { width: 100%; padding: 9px 11px; font: 15px/1.5 var(--serif); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 2px; }
textarea { min-height: 96px; resize: vertical; }
input[type="number"] { font: 500 16px var(--mono); width: 88px; }

/* assignments */
.wrap { max-width: 1000px; margin: 0 auto; padding: 32px 16px 60px; }
.wrap h1 { font: 500 36px/1.1 var(--serif); margin: 8px 0 6px; }
.lede { color: var(--ink-soft); margin: 0 0 26px; max-width: 60ch; }
.stage { margin: 0 0 30px; }
.stage h2 { display: flex; align-items: baseline; gap: 12px; font: 500 22px var(--serif); margin: 0 0 10px; padding-bottom: 8px; border-bottom: 1px solid var(--line-strong); }
.row { display: grid; grid-template-columns: 110px 1fr 110px 150px 100px; gap: 16px; align-items: center; padding: 14px 4px; border-bottom: 1px solid var(--line); }
.row .id { font: 500 14px var(--mono); }
.row .meta { font: 13.5px/1.4 var(--sans); color: var(--ink-soft); }
.row .due { font: 13px var(--mono); color: var(--ink-soft); }
.row > .btn { justify-self: end; }
.row.dim { opacity: 0.62; }
.chip { display: inline-flex; align-items: center; gap: 6px; font: 500 12.5px var(--sans); padding: 4px 9px; border: 1px solid var(--line-strong); border-radius: 999px; white-space: nowrap; }
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-faint); }
.chip.reading::before { background: var(--accent); }
.chip.draft::before { background: transparent; border: 1.5px solid var(--accent); }
.chip.filed { border-color: transparent; background: var(--surface-deep); }
.chip.filed::before { background: var(--moss); }
.chip.paused::before { background: var(--bad); }
.foot { font: 13px var(--sans); color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 14px; margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }
.empty { color: var(--ink-soft); font: 16px var(--serif); padding: 20px 0; }

/* reading view */
.read { display: grid; grid-template-columns: 1fr 400px; grid-template-rows: minmax(0, 1fr); height: calc(100vh - 61px); }
.read.closed { grid-template-columns: 1fr 0; }
.stagecol { display: flex; flex-direction: column; min-width: 0; min-height: 0; border-right: 1px solid var(--line); }
.bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 9px 16px; border-bottom: 1px solid var(--line); background: var(--surface); position: relative; }
.back { font: 500 13.5px var(--sans); color: var(--ink-soft); background: none; border: 0; padding: 0; cursor: pointer; }
.back:hover { color: var(--accent); }
.bar .id { font: 500 13px var(--mono); }
.docs { display: flex; gap: 2px; background: var(--surface-deep); padding: 2px; border-radius: 2px; }
.docs button { border: 0; background: transparent; padding: 5px 10px; font: 500 13px var(--sans); border-radius: 2px; cursor: pointer; color: var(--ink-soft); }
.docs button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 0 0 1px var(--line); }
.bar .sp { flex: 1; }
.tbtn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: transparent; padding: 6px 10px; border-radius: 2px; font: 500 13px var(--sans); cursor: pointer; }
.tbtn:hover, .tbtn[aria-expanded="true"] { border-color: var(--line-strong); background: var(--surface-deep); }
.tbtn svg { width: 16px; height: 16px; }
.stop { color: var(--bad); border-color: transparent; }
.progress { height: 3px; background: var(--line); }
.progress i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.3s; }
.scroller { flex: 1; overflow: auto; position: relative; }
.text { --measure: 36em; max-width: var(--measure); margin: 0 auto; padding: 46px 28px 40px; }
.sectionnav { display: flex; justify-content: space-between; gap: 10px; max-width: 36em; margin: 0 auto; padding: 0 28px 70px; }
.posline { display: flex; justify-content: space-between; gap: 12px; font: 12.5px var(--mono); color: var(--ink-faint); padding: 7px 16px; border-top: 1px solid var(--line); background: var(--surface); }
.pop { position: absolute; right: 16px; top: 52px; z-index: 5; width: 310px; background: var(--surface); border: 1px solid var(--line-strong); box-shadow: var(--shadow); padding: 16px; }
.pop h4 { font: 500 11px var(--mono); letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 6px; }
.pop .grp { margin: 0 0 14px; }
.pop.contents { left: 16px; right: auto; width: min(360px, calc(100vw - 32px)); max-height: 60vh; overflow: auto; }
.pop.contents button { display: block; width: 100%; text-align: left; border: 0; background: none; padding: 7px 6px; font: 14px var(--sans); cursor: pointer; border-radius: 2px; }
.pop.contents button[aria-current="true"] { background: var(--accent-wash); }
.seg { display: flex; border: 1px solid var(--line-strong); border-radius: 2px; overflow: hidden; }
.seg button { flex: 1; border: 0; background: transparent; padding: 7px 4px; font: 500 13px var(--sans); cursor: pointer; border-right: 1px solid var(--line); }
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.pop input[type="range"] { width: 100%; accent-color: var(--accent); }
.pop .row2 { display: flex; justify-content: space-between; font: 12.5px var(--mono); color: var(--ink-soft); }
.lightbox { position: fixed; inset: 0; z-index: 20; background: rgba(0, 0, 0, 0.82); display: grid; place-items: center; padding: 20px; cursor: zoom-out; }
.lightbox img { max-width: 100%; max-height: 100%; background: #fff; }
.paused { max-width: 560px; margin: 60px auto; padding: 0 20px; font: 17px/1.5 var(--serif); }

/* worksheet panel */
.ws { display: flex; flex-direction: column; min-width: 0; min-height: 0; overflow: hidden; background: var(--surface); }
.wshead { padding: 12px 16px 10px; border-bottom: 1px solid var(--line); }
.wshead .t { display: flex; justify-content: space-between; align-items: center; }
.wshead h2 { font: 500 21px var(--serif); margin: 4px 0 8px; }
.wsbody { flex: 1; overflow: auto; padding: 16px; }
.q { margin: 0 0 18px; }
.q > .lab { display: block; font: 600 14px var(--sans); margin: 0 0 6px; }
.verdicts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.verdicts button, .pills button { border: 1px solid var(--line-strong); background: var(--paper); padding: 9px 6px; font: 600 14px var(--sans); border-radius: 2px; cursor: pointer; }
.verdicts button[aria-pressed="true"], .pills button[aria-pressed="true"] { background: var(--accent-wash); border-color: var(--accent); color: var(--accent-ink); }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pills button { font-weight: 500; font-size: 13px; padding: 6px 10px; }
.band { display: grid; gap: 3px; }
.band label { display: grid; grid-template-columns: auto 52px 1fr; gap: 8px; align-items: baseline; padding: 6px 8px; border: 1px solid var(--line); font: 13.5px/1.35 var(--sans); cursor: pointer; border-radius: 2px; }
.band label:has(input:checked) { border-color: var(--accent); background: var(--accent-wash); }
.band input { accent-color: var(--accent); }
.band .r { font: 500 12px var(--mono); color: var(--accent); }
.scoreline { display: flex; gap: 10px; align-items: center; margin-top: 8px; font: 13px var(--sans); color: var(--ink-soft); }
.total { display: flex; justify-content: space-between; align-items: baseline; padding: 10px 0; border-top: 1px solid var(--line-strong); font: 600 14px var(--sans); margin-bottom: 14px; }
.total b { font: 500 26px var(--mono); color: var(--accent); }
.rule { font: 13px/1.4 var(--sans); padding: 8px 10px; border-left: 3px solid var(--accent); background: var(--accent-wash); margin: 8px 0 0; }
.locked { font: 13px/1.45 var(--sans); color: var(--ink-soft); padding: 10px 12px; border: 1px dashed var(--line-strong); margin: 0 0 16px; }
.wsfoot { border-top: 1px solid var(--line); padding: 12px 16px; display: flex; align-items: center; gap: 10px; background: var(--surface); flex-wrap: wrap; }
.saved { font: 12.5px var(--sans); color: var(--ink-soft); flex: 1; }
.saved.ok::before { content: "\25CF"; color: var(--moss); margin-right: 6px; font-size: 10px; }
.filed-view dt { font: 600 13px var(--sans); margin-top: 10px; }
.filed-view dd { margin: 2px 0 0; font: 15px/1.5 var(--serif); white-space: pre-wrap; }
.confirm { width: 100%; font: 13.5px/1.4 var(--sans); background: var(--accent-wash); border-left: 3px solid var(--accent); padding: 8px 10px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* discussion */
.talk { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.thread { flex: 1; overflow: auto; padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; }
.sys { font: 12.5px/1.45 var(--sans); color: var(--ink-soft); background: var(--surface-deep); border-left: 3px solid var(--accent); padding: 8px 10px; }
.msg { max-width: 92%; }
.msg .who { font: 500 11px var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 3px; }
.msg .body { font: 15px/1.5 var(--serif); background: var(--paper); border: 1px solid var(--line); padding: 9px 11px; border-radius: 2px; white-space: pre-wrap; }
.msg.me { align-self: flex-end; }
.msg.me .who { text-align: right; }
.msg.me .body { background: var(--accent-wash); border-color: transparent; }
.compose { border-top: 1px solid var(--line); padding: 12px 16px; background: var(--surface); }
.compose textarea { min-height: 64px; }
.compose .row3 { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.compose .row3 .hint { flex: 1; }
.lockbox { margin: 18px 16px; padding: 16px; border: 1px dashed var(--line-strong); font: 14px/1.5 var(--sans); color: var(--ink-soft); }
.lockbox b { display: block; color: var(--ink); font-weight: 600; margin-bottom: 4px; }

.tabbar { display: none; }
@media (max-width: 900px) {
  .read, .read.closed { grid-template-columns: 1fr; height: auto; }
  .stagecol { border-right: 0; min-height: calc(100vh - 110px); }
  .ws { display: none; }
  .read.show-ws .stagecol { display: none; }
  .read.show-ws .ws { display: flex; min-height: calc(100vh - 110px); }
  .tabbar { display: flex; position: sticky; bottom: 0; z-index: 4; background: var(--surface); border-top: 1px solid var(--line-strong); }
  .tabbar button { flex: 1; border: 0; background: none; padding: 12px; font: 600 14px var(--sans); color: var(--ink-soft); cursor: pointer; }
  .tabbar button[aria-pressed="true"] { color: var(--accent); box-shadow: inset 0 2px 0 var(--accent); }
  .hide-sm { display: none !important; }
  .row { grid-template-columns: 1fr auto; gap: 4px 12px; }
  .row > :nth-child(3), .row > :nth-child(4) { grid-column: 1; }
  .row > :nth-child(5) { grid-row: 1 / span 2; grid-column: 2; }
  .top { padding: 10px 16px; }
  .brand small { display: none; }
  .text { padding: 30px 18px 30px; }
  .pop { left: 16px; right: 16px; width: auto; }
}
@media (max-width: 560px) { .who { display: none; } .terms { grid-template-columns: 1fr; gap: 2px; } .terms dd { margin-bottom: 10px; } }
@media print {
  body * { visibility: hidden; }
  body::after { visibility: visible; content: "Printing is off for review materials."; position: fixed; top: 40%; left: 0; right: 0; text-align: center; font: 20px Georgia, serif; }
}