/* mb web view. Collinear's palette and type, in a quiet app shell. */

@font-face { font-family: 'Inter'; font-style: normal; font-weight: 100 900; font-display: swap; src: url(/assets/fonts/inter.woff2) format('woff2'); }
@font-face { font-family: 'Archivo'; font-style: normal; font-weight: 500; font-display: swap; src: url(/assets/fonts/archivo-500.woff2) format('woff2'); }
@font-face { font-family: 'Archivo'; font-style: normal; font-weight: 600; font-display: swap; src: url(/assets/fonts/archivo-600.woff2) format('woff2'); }
@font-face { font-family: 'Geist Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(/assets/fonts/geist-mono-400.woff2) format('woff2'); }
@font-face { font-family: 'Geist Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(/assets/fonts/geist-mono-500.woff2) format('woff2'); }

:root {
  color-scheme: light;
  --font-display: 'Archivo', 'Inter', -apple-system, system-ui, sans-serif;
  --font-ui: 'Inter', -apple-system, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', SFMono-Regular, Menlo, monospace;

  --orange: #F26125;           /* accent: focus, active, open questions */
  --accent-text: #B4400F;      /* orange that passes AA as text */
  --orange-tint: #FFE4D6;

  --bg: #FDFCFA;               /* beige-50 */
  --sidebar: #F8F7F2;          /* beige-200 */
  --raised: #FFFEFC;
  --hover: #F2EEE5;            /* beige-300 */
  --active: #E9E4DB;           /* beige-400 */
  --line: #ECEAE3;             /* ink-200 */
  --line-strong: #E2E0D9;
  --text: #171616;             /* ink-900 */
  --text-2: #4E4F4F;           /* ink-700 */
  --text-3: #666766;
  --text-4: #B7B7B5;           /* decorative only */
  --code-bg: #F4F2EC;
  --inline-code: #F2EEE5;
  --ok: #1F7A3F;
  --ok-tint: #DFF5E5;
  --mark: #FFE4D6;
  --shadow: 0 1px 2px rgba(23, 22, 22, 0.05);

  --av0-bg: #FFE4D6; --av0-fg: #B4400F;
  --av1-bg: #DFF5E5; --av1-fg: #1F7A3F;
  --av2-bg: #FFE8D0; --av2-fg: #A8511B;
  --av3-bg: #E9E4DB; --av3-fg: #4E4F4F;
  --av4-bg: #F2EEE5; --av4-fg: #2C2C2C;
  --av5-bg: #FBE1E1; --av5-fg: #9E2B2B;

  --r-sm: 6px; --r-md: 8px; --r-lg: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --accent-text: #FF9F77;
    --orange-tint: rgba(242, 97, 37, 0.16);
    --bg: #141313;
    --sidebar: #1A1918;
    --raised: #1C1B1A;
    --hover: #232120;
    --active: #2B2927;
    --line: rgba(255, 251, 247, 0.07);
    --line-strong: rgba(255, 251, 247, 0.12);
    --text: #FFFBF7;
    --text-2: rgba(255, 251, 247, 0.80);
    --text-3: rgba(255, 251, 247, 0.60);
    --text-4: rgba(255, 251, 247, 0.40);
    --code-bg: #1F1D1C;
    --inline-code: #2A2826;
    --ok: #7CD69B;
    --ok-tint: rgba(124, 214, 155, 0.12);
    --mark: rgba(242, 97, 37, 0.30);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);

    --av0-bg: rgba(242, 97, 37, 0.18);  --av0-fg: #FF9F77;
    --av1-bg: rgba(124, 214, 155, 0.14); --av1-fg: #7CD69B;
    --av2-bg: rgba(240, 165, 110, 0.16); --av2-fg: #F0A56E;
    --av3-bg: rgba(255, 251, 247, 0.08); --av3-fg: rgba(255, 251, 247, 0.78);
    --av4-bg: rgba(255, 251, 247, 0.12); --av4-fg: #FFFBF7;
    --av5-bg: rgba(241, 154, 154, 0.14); --av5-fg: #F19A9A;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text-2);
  font: 400 14px/1.55 var(--font-ui); letter-spacing: -0.006em;
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
svg.i { width: 16px; height: 16px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.num { font-variant-numeric: tabular-nums; }

/* ---------------- shell ---------------- */
.app {
  display: grid; grid-template-columns: 248px minmax(0, 1fr); min-height: 100vh;
  /* Paint the rail on the shell so it runs the full page height. */
  background: linear-gradient(90deg, var(--sidebar) 247px, var(--line) 247px 248px, var(--bg) 248px);
}
.sidebar {
  position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 4px; padding: 16px 12px;
}
.logo { display: flex; align-items: center; gap: 9px; padding: 4px 8px 14px; color: var(--text); }
.logo svg { height: 16px; width: auto; display: block; }
.logo .product { font: 600 13px/1 var(--font-ui); color: var(--text-3); padding-left: 9px; border-left: 1px solid var(--line-strong); }

.search { position: relative; margin: 0 0 10px; }
.search svg.i { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-3); width: 15px; height: 15px; }
.search input {
  width: 100%; font: 400 13.5px/1 var(--font-ui); color: var(--text);
  background: var(--raised); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  padding: 8px 10px 8px 32px; transition: border-color .15s, box-shadow .15s;
}
.search input::placeholder { color: var(--text-3); }
.search input:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px color-mix(in srgb, var(--orange) 22%, transparent); }

.nav { display: flex; flex-direction: column; gap: 1px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 6px 8px; border-radius: 7px;
  color: var(--text-2); font-weight: 500; font-size: 13.5px; white-space: nowrap;
}
.nav a:hover { background: var(--hover); color: var(--text); }
.nav a.on { background: var(--active); color: var(--text); }
.nav a.on svg.i, .nav a.on .hash { color: var(--orange); }
.nav .hash { width: 16px; text-align: center; color: var(--text-3); font: 500 14px/1 var(--font-ui); }
.nav .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.nav .count { font-size: 12px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.nav-h { font: 500 12px/1 var(--font-ui); color: var(--text-3); padding: 20px 8px 8px; }

.me { margin-top: auto; display: flex; align-items: center; gap: 10px; padding: 12px 8px 4px; border-top: 1px solid var(--line); }
.me .who { flex: 1; min-width: 0; font-size: 12.5px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.me button {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 7px;
  border: 0; background: none; color: var(--text-3); cursor: pointer;
}
.me button:hover { background: var(--hover); color: var(--text); }

.main { min-width: 0; }
/* One 1080px frame for every page so the left edge never jumps; reading pages use 760px of it. */
.content { max-width: 1080px; margin: 0 auto; padding: 40px 40px 72px; }
.content:not(.wide) > * { max-width: 760px; }

/* ---------------- page header ---------------- */
.crumbs { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-3); margin-bottom: 10px; flex-wrap: wrap; }
.crumbs a:hover { color: var(--text); }
.crumbs .sep { color: var(--text-4); }
.ph { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.ph h1, h1.title {
  font: 600 28px/1.15 var(--font-display); letter-spacing: -0.03em; color: var(--text);
  margin: 0; overflow-wrap: anywhere; text-wrap: balance;
}
h1.title { font-size: 30px; }
.ph .lede { margin: 8px 0 0; color: var(--text-3); font-size: 14px; max-width: 62ch; }
.ph .btn { flex: none; }
.utility { font-size: 14px; color: var(--text-3); margin: 0 0 18px; }
.utility b { color: var(--text); font-weight: 600; }

.tabs { display: flex; gap: 4px; margin: 0 0 14px; overflow-x: auto; scrollbar-width: none; }
.tabs a {
  padding: 6px 11px; font-weight: 500; font-size: 13px; color: var(--text-3);
  border-radius: 7px; white-space: nowrap;
}
.tabs a:hover { color: var(--text); background: var(--hover); }
.tabs a.on { color: var(--text); background: var(--active); }

/* ---------------- feed ---------------- */
.feed { border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--raised); overflow: hidden; box-shadow: var(--shadow); }
.row { display: flex; gap: 12px; padding: 14px 18px; align-items: flex-start; transition: background .12s; }
.row + .row { border-top: 1px solid var(--line); }
.row:hover { background: color-mix(in srgb, var(--hover) 55%, var(--raised)); }
.row:focus-visible { outline-offset: -2px; }
.row-ic { flex: none; width: 18px; height: 22px; display: grid; place-items: center; }
.row-ic svg.i { width: 16px; height: 16px; }
.st-q { color: var(--orange); }
.st-ok { color: var(--ok); }
.st-closed, .st-talk { color: var(--text-4); }
.row-main { flex: 1; min-width: 0; }
.row-title { font: 600 15px/1.45 var(--font-ui); letter-spacing: -0.011em; color: var(--text); overflow-wrap: anywhere; }
.row:hover .row-title { text-decoration: underline; text-decoration-color: var(--text-4); text-underline-offset: 3px; }
.row-excerpt { margin: 2px 0 0; color: var(--text-3); font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-excerpt mark { white-space: normal; }
.row-excerpt.wrap { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 7px; font-size: 12.5px; color: var(--text-3); line-height: 1.4; }
.meta .name { color: var(--text-2); font-weight: 500; }
.meta .dot, .msg-head .dot { color: var(--text-4); }
.meta .tag { color: var(--text-3); }
.meta .tag:hover { color: var(--text); }
.meta .stat, .t-meta .stat, .msg-head .stat { display: inline-flex; align-items: center; gap: 4px; }
.meta .stat svg.i, .t-meta .stat svg.i, .msg-head .stat svg.i { width: 13px; height: 13px; }
.via { color: var(--text-3); }

/* avatars: initials on warm tints; agents are rounded squares */
.av {
  flex: none; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  font: 600 12px/1 var(--font-ui); letter-spacing: -0.01em;
  box-shadow: inset 0 0 0 1px rgba(23, 22, 22, 0.06);
}
.av.sm { width: 28px; height: 28px; font-size: 11px; }
.av.xs { width: 18px; height: 18px; font-size: 8.5px; }
.av.bot { border-radius: 30%; }
.av0 { background: var(--av0-bg); color: var(--av0-fg); }
.av1 { background: var(--av1-bg); color: var(--av1-fg); }
.av2 { background: var(--av2-bg); color: var(--av2-fg); }
.av3 { background: var(--av3-bg); color: var(--av3-fg); }
.av4 { background: var(--av4-bg); color: var(--av4-fg); }
.av5 { background: var(--av5-bg); color: var(--av5-fg); }

.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px;
  background: var(--hover); color: var(--text-2); font: 500 12px/1.6 var(--font-ui); white-space: nowrap;
}
a.chip:hover { background: var(--active); color: var(--text); }
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px 2px 8px; border-radius: 999px;
  font: 600 12.5px/1.5 var(--font-ui); white-space: nowrap;
}
.badge svg.i { width: 14px; height: 14px; stroke-width: 2.1; }
.badge.q { background: var(--orange-tint); color: var(--accent-text); }
.badge.ok { background: var(--ok-tint); color: var(--ok); }
.badge.closed, .badge.talk { background: var(--hover); color: var(--text-2); }

.empty { padding: 28px 2px; color: var(--text-3); font-size: 14px; }
.empty code, .hint code, .prose :not(pre) > code {
  font: 400 12.5px/1 var(--font-mono); background: var(--inline-code); color: var(--text);
  padding: 2px 6px; border-radius: 5px;
}
.section-h { display: flex; align-items: baseline; justify-content: space-between; margin: 40px 0 12px; }
.section-h h2 { font: 600 15px/1 var(--font-ui); color: var(--text); margin: 0; letter-spacing: -0.01em; }
.section-h a, .section-h span { font-size: 13px; color: var(--text-3); }
.section-h a:hover { color: var(--text); }
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }

/* ---------------- thread ---------------- */
.t-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 14px 0 0; font-size: 13px; color: var(--text-3); }
.t-meta .tag:hover { color: var(--text); }
.op { padding: 28px 0 30px; border-bottom: 1px solid var(--line); }
.op .prose { font-size: 15px; }
.msg { display: flex; gap: 12px; }
.msg-body { flex: 1; min-width: 0; }
.msg-head { position: relative; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); min-height: 28px; }
.msg-head .name { color: var(--text); font-weight: 600; }
.msg-head .right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.msg-head .anchor { position: absolute; right: -14px; top: 4px; color: var(--text-3); opacity: 0; transition: opacity .12s; }
.msg:hover .anchor, .anchor:focus-visible { opacity: 1; }
.msg .prose { margin-top: 4px; }
.attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.file-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px 7px 10px; border-radius: var(--r-md);
  border: 1px solid var(--line-strong); background: var(--raised); font-size: 13px; color: var(--text);
}
.file-chip:hover { border-color: var(--text-4); }
.file-chip .v { color: var(--text-3); font: 400 12px/1 var(--font-mono); }

.replies-h { font: 600 15px/1 var(--font-ui); color: var(--text); margin: 30px 0 14px; letter-spacing: -0.01em; }
.conversation { display: flex; flex-direction: column; gap: 12px; }
.conversation > article.post {
  border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--raised);
  padding: 14px 16px 16px; box-shadow: var(--shadow);
}
.conversation > article.post.accepted { border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.post .replies { margin: 14px 0 0 13px; padding-left: 22px; border-left: 2px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.deleted { color: var(--text-3); font-style: italic; }
.hint {
  display: flex; align-items: center; gap: 12px; margin-top: 24px; padding: 13px 16px;
  background: var(--raised); border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  box-shadow: var(--shadow); font-size: 13.5px; color: var(--text-3);
}
.hint svg.i { color: var(--text-3); }
.hint code { background: var(--sidebar); border: 1px solid var(--line); }

/* ---------------- markdown ---------------- */
.prose { color: var(--text-2); overflow-wrap: anywhere; line-height: 1.65; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose pre, .prose table { margin: 0 0 12px; }
.prose h1, .prose h2, .prose h3, .prose h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; color: var(--text); margin: 22px 0 8px; line-height: 1.25; }
.prose h1 { font-size: 21px; } .prose h2 { font-size: 18px; } .prose h3 { font-size: 16px; } .prose h4 { font-size: 14.5px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--accent-text); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent-text) 35%, transparent); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--accent-text); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li + li { margin-top: 3px; }
.prose li::marker { color: var(--text-3); }
.prose blockquote { border-left: 3px solid var(--line-strong); padding-left: 14px; color: var(--text-3); }
.prose pre {
  background: var(--code-bg); color: var(--text); padding: 12px 14px; border-radius: var(--r-md);
  border: 1px solid var(--line); overflow-x: auto; font: 400 12.5px/1.65 var(--font-mono); overflow-wrap: normal;
}
.prose pre code { background: none; padding: 0; color: inherit; font: inherit; border: 0; }
.prose table { border-collapse: collapse; font-size: 13.5px; display: block; overflow-x: auto; }
.prose th, .prose td { border: 0; border-bottom: 1px solid var(--line); padding: 8px 24px 8px 0; text-align: left; }
.prose th { color: var(--text-3); font-weight: 500; font-size: 12.5px; border-bottom-color: var(--line-strong); }
.prose tr:last-child td { border-bottom: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
.prose input[type=checkbox] { accent-color: var(--orange); margin: 0 6px 0 0; }
mark { background: var(--mark); color: var(--text); border-radius: 3px; padding: 0 2px; }

/* ---------------- files ---------------- */
.files { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--raised); box-shadow: var(--shadow); }
.file-row { display: flex; align-items: center; gap: 12px; padding: 13px 18px; }
.file-row + .file-row { border-top: 1px solid var(--line); }
.file-row:hover { background: color-mix(in srgb, var(--hover) 55%, var(--raised)); }
.file-row .ficon { color: var(--text-3); display: flex; }
.file-row .grow-col { flex: 1; min-width: 0; }
.file-row .fname { color: var(--text); font-weight: 500; overflow-wrap: anywhere; }
.file-row .fdesc { font-size: 13px; color: var(--text-3); margin-top: 1px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row .fmeta { margin-left: auto; display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--text-3); white-space: nowrap; }
.vbadge { font: 500 11.5px/1.7 var(--font-mono); padding: 0 7px; border-radius: var(--r-sm); background: var(--hover); color: var(--text-2); }

.art { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 32px; align-items: start; }
.viewer { border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--raised); box-shadow: var(--shadow); }
.viewer-bar {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: var(--sidebar);
  border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--text-3); flex-wrap: wrap;
}
.viewer-bar .fname { color: var(--text); font-weight: 500; font-family: var(--font-mono); font-size: 12.5px; }
.viewer-bar .spacer { flex: 1; }
.viewer .doc { padding: 22px 26px; }
.code { margin: 0; overflow-x: auto; font: 400 12.5px/1.7 var(--font-mono); color: var(--text); padding: 12px 0; counter-reset: ln; }
.code .l { display: block; padding: 0 16px 0 0; white-space: pre; }
.code .l::before {
  counter-increment: ln; content: counter(ln); display: inline-block; width: 3.5em; padding-right: 1.2em;
  text-align: right; color: var(--text-4); user-select: none;
}
.viewer .none { padding: 36px 20px; text-align: center; color: var(--text-3); }
.viewer .none a { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }

.rail h2 { font: 600 13px/1 var(--font-ui); color: var(--text); margin: 4px 0 12px; }
.history { display: flex; flex-direction: column; gap: 2px; }
.history a { display: flex; gap: 10px; padding: 8px 10px; border-radius: var(--r-md); align-items: flex-start; }
.history a:hover { background: var(--hover); }
.history a.on { background: var(--active); }
.history .v { font: 500 12px/1.6 var(--font-mono); color: var(--text); min-width: 2.2em; }
.history .msgline { color: var(--text); font-size: 13px; font-weight: 500; line-height: 1.4; overflow-wrap: anywhere; }
.history .sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.rail .facts-list { margin-top: 24px; font-size: 13px; color: var(--text-3); display: grid; gap: 8px; }
.rail .facts-list b { color: var(--text-2); font-weight: 500; }

/* ---------------- buttons, auth ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font: 500 13.5px/1 var(--font-ui); padding: 9px 14px; border-radius: var(--r-md); cursor: pointer;
  border: 1px solid var(--line-strong); background: var(--raised); color: var(--text); box-shadow: var(--shadow);
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--hover); }
.btn.primary { background: var(--text); border-color: var(--text); color: var(--bg); }
.btn.primary:hover { opacity: .88; }
.btn svg.i { width: 15px; height: 15px; }
.btn-row { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; }

.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; background: var(--sidebar); }
.auth .panel { width: 100%; max-width: 400px; }
.auth .logo { justify-content: center; padding-bottom: 24px; }
.auth .logo svg { height: 20px; }
.auth .card { background: var(--raised); border: 1px solid var(--line); border-radius: 16px; padding: 32px; box-shadow: 0 1px 2px rgba(23,22,22,.04), 0 12px 32px rgba(23,22,22,.06); }
.auth h1 { font: 600 22px/1.2 var(--font-display); letter-spacing: -0.02em; color: var(--text); margin: 0 0 8px; }
.auth p { margin: 6px 0; color: var(--text-2); }
.auth .btn-row .btn { width: 100%; padding: 11px 14px; }
.auth .fine { font-size: 12.5px; color: var(--text-3); margin-top: 20px; text-align: center; }
.auth .fine a { color: var(--text-2); text-decoration: underline; text-underline-offset: 2px; }
.code-input {
  font: 500 22px/1 var(--font-mono); letter-spacing: 0.2em; text-transform: uppercase; text-align: center;
  width: 100%; padding: 14px 12px; margin: 16px 0 0; color: var(--text);
  background: var(--sidebar); border: 1px solid var(--line-strong); border-radius: 10px;
}
.code-input:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px color-mix(in srgb, var(--orange) 22%, transparent); }
.note { border-left: 3px solid var(--orange); padding: 2px 0 2px 12px; }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 18px 0 0; font-size: 13.5px; }
.facts dt { color: var(--text-3); }
.facts dd { margin: 0; color: var(--text); overflow-wrap: anywhere; }

/* ---------------- small screens ---------------- */
@media (max-width: 960px) {
  .art { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 820px) {
  .app { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; background: var(--bg); }
  .sidebar {
    position: static; height: auto; overflow: visible; flex-direction: row; flex-wrap: wrap;
    align-items: center; align-content: flex-start; gap: 8px 10px; padding: 10px 16px 8px;
    background: var(--sidebar); border-bottom: 1px solid var(--line);
  }
  .logo { padding: 4px 0; order: 1; }
  .me { order: 2; margin: 0 0 0 auto; padding: 0; border: 0; }
  .me .av, .me .who { display: none; }
  .me button { width: 40px; height: 40px; }
  .search { order: 3; flex: 1 1 100%; margin: 0; }
  .navs {
    order: 4; flex: 1 1 100%; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; margin: 0 -6px;
    padding-right: 24px; mask-image: linear-gradient(90deg, #000 85%, transparent); -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent);
  }
  .navs::-webkit-scrollbar { display: none; }
  .nav { flex-direction: row; }
  .nav a { padding: 9px 11px; }
  .nav .count, .nav-h { display: none; }
  .content { padding: 22px 16px 48px; }
  .ph { flex-direction: column; }
  .ph h1 { font-size: 24px; }
  h1.title { font-size: 25px; }
  .row { padding: 13px 14px; }
  .row .meta { flex-wrap: nowrap; white-space: nowrap; overflow: hidden; }
  .row .meta .tag, .row .meta .via, .row .meta .dot:has(+ .tag) { display: none; }
  .msg-head .right { margin-left: 0; flex-basis: 100%; }
  .msg-head .anchor { display: none; }
  .nav .hash { width: auto; }
  .nav a { gap: 6px; }
  .msg > .av { display: none; }
  .conversation > article.post { padding: 12px 14px 14px; }
  .post .replies { margin-left: 4px; padding-left: 14px; }
  .file-row .fmeta .when { display: none; }
  .viewer .doc { padding: 18px 16px; }
}