:root {
  --bg: #faf9f6;
  --fg: #141414;
  --muted: #8a8780;
  --rule: #e4e1da;
  --accent: #c8102e;
  --card: #ffffff;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", system-ui, sans-serif;
  --serif: "Iowan Old Style", "Charter", Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111110;
    --fg: #ecebe7;
    --muted: #7d7a73;
    --rule: #2a2927;
    --accent: #ff4d5e;
    --card: #181816;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: default; opacity: .35; }
.muted { color: var(--muted); }
.error { color: var(--accent); font-size: 14px; }

/* ---------- buttons ---------- */
.primary {
  background: var(--fg);
  color: var(--bg);
  border: 0;
  border-radius: 999px;
  padding: 12px 34px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 13px;
}
.primary.small { padding: 7px 18px; font-size: 11px; }
.link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--muted);
  font-size: 13px;
}
.link:not(:disabled):hover { color: var(--fg); text-decoration: underline; text-underline-offset: 3px; }
.link.danger { color: var(--accent); }

/* ---------- nav ---------- */
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px 24px;
  font-size: 13px;
  color: var(--muted);
}
.top a:hover { color: var(--fg); }

/* ---------- home ---------- */
.home {
  max-width: 620px;
  margin: 0 auto;
  padding: 14vh 24px 40px;
  text-align: center;
}
.logo {
  font-size: clamp(56px, 12vw, 104px);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: 1;
  margin: 0 0 48px;
}
.topic-form, .login { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.topic-form textarea, .login input {
  width: 100%;
  resize: none;
  overflow: hidden;
  background: transparent;
  color: var(--fg);
  border: 0;
  border-bottom: 2px solid var(--rule);
  padding: 10px 2px;
  font: 22px/1.4 var(--serif);
  text-align: center;
  outline: none;
  transition: border-color .15s;
}
.topic-form textarea:focus, .login input:focus { border-color: var(--fg); }
.topic-form textarea::placeholder { color: var(--muted); }
.resume { margin-top: 40px; font: 16px/1.4 var(--serif); }
.resume a { color: var(--muted); }
.resume a:hover { color: var(--fg); }

/* ---------- arena ---------- */
.arena { max-width: 1040px; margin: 0 auto; padding: 12px 24px 80px; }
.topic {
  font: 600 clamp(26px, 4vw, 38px)/1.2 var(--serif);
  letter-spacing: -.01em;
  margin: 8px 0 40px;
  max-width: 820px;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.round, .block h3 {
  font: 700 11px/1 var(--sans);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}
.round { margin: 56px 0 24px; padding-top: 24px; border-top: 1px solid var(--rule); }
.round-row { display: flex; align-items: center; justify-content: space-between; margin: 56px 0 24px; padding-top: 24px; border-top: 1px solid var(--rule); }
.round-row .round { margin: 0; padding: 0; border: 0; }
.block { padding-left: 0; border-left: 2px solid transparent; transition: border-color .3s, padding .3s; }
.block.won { border-left-color: var(--accent); padding-left: 18px; }
.block h3 { margin: 0 0 14px; padding-bottom: 12px; border-bottom: 1px solid var(--rule); }
.badge { color: var(--accent); margin-left: 6px; }
.block .text { font: 17px/1.62 var(--serif); }
.block .text p { margin: 0 0 1em; }
.block .text p.muted { font-weight: 400; }

/* ---------- argument typography (shared with the verdict) ---------- */
/* Thesis: the first line, larger, so the two columns can be compared at a glance. */
.block .text > p:first-child:not(.muted) { font-size: 19px; line-height: 1.42; margin-bottom: 1.1em; }
/* Key figures and bullet labels switch to the sans face so they pop out of the serif body. */
.text strong, .verdict strong { font: 650 .93em/1 var(--sans); letter-spacing: -.005em; color: var(--fg); }
.block .text > p:first-child strong { font: 650 1em/1.42 var(--serif); letter-spacing: 0; }
.text ul, .text ol, .verdict ul, .verdict ol { margin: 0 0 1em; padding-left: 1.25em; }
.text li, .verdict li { margin: 0 0 .55em; padding-left: .2em; }
.text li::marker, .verdict li::marker { color: var(--muted); }
.text blockquote {
  margin: 0 0 .7em;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--muted);
  color: var(--fg);
  opacity: .8;
  font-style: italic;
}
.text p.bottom, .verdict p.bottom {
  margin: 1.3em 0 1em;
  padding: 12px 16px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--fg);
  border-radius: 4px;
}
.block .controls { min-height: 22px; }
.sources { margin: 0 0 12px; font-size: 13px; color: var(--muted); }
.sources summary { cursor: pointer; }
.sources ol { margin: 8px 0 0; padding-left: 20px; }
.sources li { margin: 3px 0; overflow-wrap: anywhere; }
.sources a { color: var(--muted); }
.cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 2px;
  vertical-align: -2px;
  background: var(--fg);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.fb { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.fb input {
  flex: 1;
  min-width: 180px;
  background: transparent;
  color: var(--fg);
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 6px 0;
  font: 14px var(--sans);
  outline: none;
}
.fb input:focus { border-color: var(--fg); }

.center { text-align: center; margin: 56px 0 0; }
.center.controls { margin-top: 24px; }
.verdict-btn { padding: 14px 48px; }

.verdict {
  margin: 56px auto 0;
  max-width: 720px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 32px 36px;
  font: 17px/1.6 var(--serif);
}
.verdict-head { font: 13px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 20px; }
.verdict-head strong { color: var(--accent); font-weight: 800; }
.verdict p { margin: 0 0 1em; }
.verdict > p:first-of-type { font-size: 19px; line-height: 1.42; }
.verdict > p:first-of-type strong { font: 650 1em/1.42 var(--serif); }
.verdict dl { margin: 24px 0 0; padding-top: 18px; border-top: 1px solid var(--rule); display: grid; grid-template-columns: max-content 1fr; gap: 10px 20px; }
.verdict dt { font: 700 11px/1.9 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.verdict dd { margin: 0; }

.actions { display: flex; gap: 24px; align-items: center; justify-content: center; margin-top: 64px; font-size: 13px; color: var(--muted); }
.actions a:hover { color: var(--fg); }

.foot { margin-top: 64px; text-align: center; font-size: 12px; color: var(--muted); }

/* ---------- library ---------- */
.library { max-width: 820px; margin: 0 auto; padding: 12px 24px 80px; }
.filter {
  width: 100%;
  background: transparent;
  color: var(--fg);
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 10px 0;
  font: 15px var(--sans);
  outline: none;
  margin-bottom: 16px;
}
.filter:focus { border-color: var(--fg); }
.rows { list-style: none; margin: 0; padding: 0; }
.rows li {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 20px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.row-topic { font: 18px/1.35 var(--serif); }
.row-meta, .row-date, .row-del { font-size: 12px; color: var(--muted); white-space: nowrap; }
.row-meta { letter-spacing: .06em; }
.row-del { min-width: 56px; text-align: right; }
@media (hover: hover) {
  .rows li .row-del button[data-ask] { opacity: 0; }
  .rows li:hover .row-del button[data-ask] { opacity: 1; }
}

.nav-links { display: flex; gap: 20px; }
.cost, .spent { font-size: 12px; color: var(--muted); }
.cost { margin-left: 8px; }

/* ---------- settings ---------- */
.settings { max-width: 820px; margin: 0 auto; padding: 12px 24px 80px; }
.round.first { margin-top: 8px; border-top: 0; padding-top: 0; }
.small { font-size: 13px; }
.stats { display: flex; gap: 48px; flex-wrap: wrap; margin-bottom: 20px; }
.stats div { display: flex; flex-direction: column; gap: 2px; font-size: 13px; }
.stat { font: 600 32px/1.1 var(--serif); }
.meter { height: 6px; background: var(--rule); border-radius: 3px; overflow: hidden; margin-bottom: 16px; }
.meter span { display: block; height: 100%; background: var(--fg); }
.meter.warn span, .meter.over span { background: var(--accent); }
.form { display: flex; flex-direction: column; gap: 22px; max-width: 560px; }
.form label { display: flex; flex-direction: column; gap: 6px; }
.form label > span { font: 700 11px/1.4 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.form select, .form input {
  background: transparent;
  color: var(--fg);
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 8px 0;
  font: 15px var(--sans);
  outline: none;
}
.form select:focus, .form input:focus { border-color: var(--fg); }
.form select option { background: var(--card); color: var(--fg); }
.form small { font-size: 12px; line-height: 1.45; }
.form-actions { display: flex; align-items: center; gap: 16px; }
.table-wrap { overflow-x: auto; }
.calls { width: 100%; border-collapse: collapse; font-size: 13px; }
.calls th { text-align: left; font: 700 11px/1.4 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 0 12px 10px 0; white-space: nowrap; }
.calls td { padding: 10px 12px 10px 0; border-top: 1px solid var(--rule); white-space: nowrap; }
.calls .num { text-align: right; font-variant-numeric: tabular-nums; }
.calls .topic-cell { white-space: normal; max-width: 260px; }

/* ---------- phone ---------- */
@media (max-width: 720px) {
  .top { padding: 16px; }
  .arena, .library, .home, .settings { padding-left: 16px; padding-right: 16px; }
  .stats { gap: 28px; }
  .grid { grid-template-columns: 1fr; gap: 40px; }
  .verdict { padding: 24px 20px; }
  .verdict dl { grid-template-columns: 1fr; gap: 4px; }
  .verdict dd { margin-bottom: 10px; }
  .actions { flex-wrap: wrap; gap: 18px; }
  .rows li { grid-template-columns: 1fr auto; gap: 4px 12px; }
  .row-date { grid-column: 2; }
  .row-meta { grid-column: 1; }
}

/* ---------- print ---------- */
@media print {
  :root { --bg: #fff; --fg: #000; --muted: #555; --rule: #ccc; --card: #fff; --accent: #000; }
  .controls, nav, .actions { display: none !important; }
  .arena { padding: 0; max-width: none; }
  .grid { grid-template-columns: 1fr; gap: 24px; }
  .block { break-inside: avoid-page; }
  .verdict { break-inside: avoid; border-color: #000; }
  .block .text, .verdict { font-size: 12pt; }
  .sources::details-content { content-visibility: visible; display: block; }
  .sources summary { list-style: none; }
}