/* Agent Arena pages. Builds on themes.css and landing.css tokens. */

.arena-body button { font: inherit; cursor: pointer; border: 0; }
.arena-body button.ghost-btn { border: 1px solid rgb(var(--gray-700)); }
.arena-body button[disabled] { opacity: 0.5; cursor: not-allowed; }

.arena-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  align-items: center;
  width: min(72rem, calc(100% - 2rem));
  margin: 0.75rem auto 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgb(var(--gray-800));
  font-size: 0.9rem;
}
.arena-sub a { color: rgb(var(--gray-400)); padding: 0.25rem 0; }
.arena-sub a:hover, .arena-sub a.is-on { color: rgb(var(--gray-50)); }
.arena-sub__brand { color: rgb(var(--gray-50)) !important; font-weight: 600; margin-right: 0.5rem; }

.arena-demo, .arena-flash {
  width: min(72rem, calc(100% - 2rem));
  margin: 0.75rem auto 0;
  padding: 0.6rem 0.9rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  background: rgb(var(--gray-900));
  border: 1px solid rgb(var(--gray-700));
  color: rgb(var(--gray-200));
}
.arena-demo { border-style: dashed; }
.arena-flash--err { border-color: #b4543c; color: #f2b3a3; }

.arena-main {
  width: min(72rem, calc(100% - 2rem));
  margin: 1.5rem auto 3rem;
  flex: 1 0 auto;
}
.arena-main h1 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); font-weight: 600; margin: 0.25rem 0 0.75rem; }
.arena-main h2 { font-size: 1.2rem; font-weight: 600; margin: 0 0 0.75rem; }
.arena-main h3 { font-size: 1rem; font-weight: 600; margin: 1.25rem 0 0.5rem; }
.arena-main p, .arena-main li { color: rgb(var(--gray-300)); line-height: 1.6; }
.arena-main a { color: var(--accent-text); }
.arena-main code { font-size: 0.85em; background: rgb(var(--gray-900)); padding: 0.1rem 0.3rem; border-radius: 0.25rem; word-break: break-all; }

.arena-meta { font-size: 0.9rem; color: rgb(var(--gray-400)) !important; }
.arena-fine { font-size: 0.8rem; color: rgb(var(--gray-500)) !important; }
.arena-notice {
  font-size: 0.85rem;
  color: rgb(var(--gray-400));
  border-left: 3px solid rgb(var(--accent));
  padding: 0.4rem 0.8rem;
  margin: 1rem 0;
  max-width: 48rem;
}
.landing-main > .arena-notice { margin: 1rem auto 3rem; }

.arena-tag {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  border: 1px solid rgb(var(--gray-700));
  color: rgb(var(--gray-400));
  vertical-align: middle;
}

.arena-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.arena-tabs a {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgb(var(--gray-700));
  color: rgb(var(--gray-300)) !important;
  font-size: 0.85rem;
}
.arena-tabs a.is-on { background: rgb(var(--accent)); border-color: transparent; color: #fff !important; }

.arena-table-wrap { overflow-x: auto; margin: 0.5rem 0; }
.arena-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.arena-table th, .arena-table td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid rgb(var(--gray-800)); white-space: nowrap; }
.arena-table th { color: rgb(var(--gray-500)); font-weight: 500; font-size: 0.8rem; }
.arena-table td { color: rgb(var(--gray-200)); }
.arena-table .r { text-align: right; font-variant-numeric: tabular-nums; }
.arena-table tr.is-unranked td { color: rgb(var(--gray-400)); }
.arena-table tr.is-bench td { color: rgb(var(--gray-500)); font-style: italic; }
.arena-empty { color: rgb(var(--gray-500)) !important; text-align: center; padding: 1.5rem !important; }
.pos { color: #6fcf97 !important; }
.neg { color: #f08a7a !important; }

.arena-panel {
  margin: 1.5rem 0;
  padding: 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid rgb(var(--gray-800));
  background: rgb(var(--gray-900) / 0.6);
}
.arena-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.arena-actions form { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.arena-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap: 0.75rem; margin: 0.5rem 0 1rem; }
.arena-stats div { display: flex; flex-direction: column; gap: 0.15rem; }
.arena-stats span { font-size: 0.75rem; color: rgb(var(--gray-500)); }
.arena-stats strong { font-size: 1.25rem; font-variant-numeric: tabular-nums; color: rgb(var(--gray-50)); }

.arena-spark { width: 100%; height: 120px; display: block; margin: 0.5rem 0 1rem; }
.arena-spark polyline { fill: none; stroke: rgb(var(--accent)); stroke-width: 2; vector-effect: non-scaling-stroke; }

.arena-trades { list-style: none; padding: 0; margin: 0; max-height: 28rem; overflow-y: auto; }
.arena-trades li { padding: 0.5rem 0; border-bottom: 1px solid rgb(var(--gray-800)); font-size: 0.9rem; }
.arena-trades__when { display: inline-block; min-width: 9.5rem; color: rgb(var(--gray-500)); font-size: 0.8rem; }
.arena-trades__why { display: block; color: rgb(var(--gray-400)); }
.arena-trades li.is-rejected, .arena-trades li.is-cancelled { opacity: 0.6; }

.arena-form { display: grid; gap: 0.85rem; max-width: 44rem; }
.arena-form label, .arena-inline label { display: grid; gap: 0.35rem; font-size: 0.85rem; color: rgb(var(--gray-300)); }
.arena-inline { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: end; margin: 0.75rem 0; }
.arena-body input, .arena-body select, .arena-body textarea {
  font: inherit;
  font-size: 0.9rem;
  color: rgb(var(--gray-50));
  background: rgb(var(--gray-950));
  border: 1px solid rgb(var(--gray-700));
  border-radius: 0.45rem;
  padding: 0.55rem 0.65rem;
  max-width: 100%;
}
.arena-body textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem; }
.arena-body input[type="checkbox"] { width: auto; }

.arena-code {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.8rem;
  background: rgb(var(--gray-950));
  border: 1px solid rgb(var(--gray-800));
  border-radius: 0.5rem;
  padding: 0.9rem;
  color: rgb(var(--gray-200));
  max-height: 32rem;
  overflow: auto;
}

.arena-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 0.75rem; margin: 1rem 0; }
.arena-card {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 1rem; border-radius: 0.75rem;
  border: 1px solid rgb(var(--gray-800)); background: rgb(var(--gray-900) / 0.6);
  color: rgb(var(--gray-100)) !important;
}
.arena-card:hover { border-color: rgb(var(--accent)); }
.arena-card__meta { font-size: 0.8rem; color: rgb(var(--gray-500)); }

.chapter--wide { max-width: 72rem; }

@media (max-width: 640px) {
  .arena-trades__when { display: block; }
  .arena-panel { padding: 1rem; }
}