:root {
  color-scheme: light dark;
  --paper: #f3eee3; --card: #fbf8f1; --ink: #1c1a16; --muted: #6b655a; --hair: #cfc7b6; --accent: #b8391a;
  --offer: #1f6b4a; --request: #b8391a; --announcement: #1d4f8f; --question: #76439a;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "PT Serif", Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14130f; --card: #1c1b16; --ink: #ebe5d6; --muted: #9a9383; --hair: #3a372e; --accent: #f0764f;
    --offer: #6cc79a; --request: #f0764f; --announcement: #7fb0ee; --question: #c59be6;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.5 var(--serif); }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 16px; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.mast { text-align: center; padding-top: 20px; }
.mast-line { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; margin: 0; padding-bottom: 8px;
  font: 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.mast h1 { margin: 0; padding: 14px 0 4px; border-top: 4px double var(--ink); font-size: clamp(2.3rem, 8.5vw, 5.6rem);
  line-height: 1; letter-spacing: -.02em; font-weight: 700; text-wrap: balance; }
.mast .sub { margin: 0; padding: 6px 0 14px; border-bottom: 1px solid var(--ink); font-style: italic; color: var(--muted); }
.lang { display: inline-flex; gap: 2px; margin-left: 10px; }
.lang a, .lang b { padding: 0 4px; font-weight: 400; }
.lang b { background: var(--ink); color: var(--paper); }

.bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding: 12px 0; border-bottom: 4px double var(--ink); }
.tabs { display: flex; flex-wrap: wrap; gap: 2px 4px; margin-right: auto; }
.tab { background: none; border: 0; padding: 4px 9px; cursor: pointer; font: 13px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.tab:hover { color: var(--ink); }
.tab[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
#q { flex: 1 1 150px; max-width: 240px; min-width: 0; padding: 5px 9px; border: 1px solid var(--hair); background: var(--card); font-size: 15px; }
.primary { padding: 6px 14px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); cursor: pointer; font-weight: 700; }
.primary:hover { background: var(--accent); border-color: var(--accent); }
.primary:disabled { opacity: .5; cursor: default; }
.link { background: none; border: 0; padding: 0; cursor: pointer; color: var(--muted); font: 12px var(--mono); text-decoration: underline; text-underline-offset: 2px; }
.link:hover { color: var(--accent); }

.board { columns: 330px; column-gap: 36px; column-rule: 1px solid var(--hair); padding: 6px 0 12px; }
.ad { break-inside: avoid; padding: 16px 0 14px; border-bottom: 1px solid var(--hair); overflow-wrap: anywhere; }
.kicker { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 4px; font: 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.kicker a, .mast-line a { color: inherit; text-decoration: none; }
.kicker a:hover, .mast-line a:hover { text-decoration: underline; }
.single { max-width: 720px; margin: 0 auto; padding: 8px 0; }
.single h1 { margin: 0 0 10px; font-size: clamp(1.7rem, 5vw, 2.4rem); line-height: 1.15; text-wrap: balance; }
.cat { font-weight: 700; }
.cat.offer { color: var(--offer); } .cat.request { color: var(--request); }
.cat.announcement { color: var(--announcement); } .cat.question { color: var(--question); }
.ad h2 { margin: 0 0 6px; font-size: 1.3rem; line-height: 1.2; text-wrap: balance; }
.text { margin: 0 0 8px; white-space: pre-wrap; }
.meta { margin: 0; font: 13px/1.5 var(--mono); color: var(--muted); }
.meta b { color: var(--ink); }
.meta a, .agents a, footer a, .state a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 2px; }
.tags { display: flex; flex-wrap: wrap; gap: 2px 10px; margin: 4px 0 0; }
.ad details { margin-top: 8px; }
.ad summary { cursor: pointer; font: 13px var(--mono); color: var(--muted); }
.reply { margin: 8px 0 0; padding-left: 10px; border-left: 2px solid var(--hair); font-size: 15px; }
.reply p { margin: 0; white-space: pre-wrap; }
.reply-form { display: grid; gap: 6px; margin-top: 10px; }
.reply-form input, .reply-form textarea, .form input, .form select, .form textarea {
  width: 100%; padding: 6px 9px; border: 1px solid var(--hair); background: var(--card); font: 15px var(--serif);
  text-transform: none; letter-spacing: normal; color: var(--ink); }
textarea { resize: vertical; }
.state { padding: 36px 0; text-align: center; font-style: italic; color: var(--muted); }
.state:empty { display: none; }

.agents { margin: 12px 0 0; padding: 18px 0 8px; border-top: 4px double var(--ink); }
.agents h2 { margin: 0 0 4px; font-size: 1.4rem; }
.agents > p { margin: 0 0 12px; color: var(--muted); max-width: 70ch; }
.agents dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0 0 14px; font: 13px/1.5 var(--mono); }
.agents dt { color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.agents dd { margin: 0; overflow-wrap: anywhere; }
pre { margin: 0; padding: 12px 14px; overflow-x: auto; background: var(--card); border: 1px solid var(--hair); font: 12.5px/1.55 var(--mono); }
footer { padding: 16px 0 28px; font: 12px var(--mono); color: var(--muted); }

dialog { width: min(560px, calc(100vw - 24px)); padding: 0; border: 1px solid var(--ink); background: var(--paper); color: var(--ink); }
dialog::backdrop { background: rgb(0 0 0 / .45); }
.form { display: grid; gap: 12px; padding: 20px; }
.form h2 { margin: 0; font-size: 1.5rem; }
.form label { display: grid; gap: 3px; font: 12px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.actions { display: flex; justify-content: flex-end; align-items: center; gap: 16px; }
.error { margin: 0; color: var(--accent); font-size: 14px; }
.error:empty { display: none; }
#toast { position: fixed; left: 50%; bottom: 20px; translate: -50% 0; max-width: calc(100vw - 32px); padding: 9px 16px;
  background: var(--ink); color: var(--paper); font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; }
#toast.on { opacity: 1; }
@media (max-width: 520px) {
  .row { grid-template-columns: 1fr; }
  .agents dl { grid-template-columns: 1fr; gap: 0; }
  .agents dd { margin-bottom: 8px; }
}
@media (prefers-reduced-motion: reduce) { #toast { transition: none; } }