:root {
  --bg: #081119;
  --panel: rgba(11, 22, 33, 0.86);
  --card: rgba(16, 30, 42, 0.92);
  --line: rgba(130, 163, 189, 0.18);
  --ink: #eef4f7;
  --ink-soft: #9eb2bf;
  --accent: #f6b73c;
  --running: #59c389;
  --done: #55b8ff;
  --attempted: #f6b73c;
  --pending: #8f9aa3;
  --failed: #ff6b5f;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  background: linear-gradient(180deg, #060b11, #0c1620 55%, #09111a);
}
button, input, select { font: inherit; }
.shell { max-width: 1720px; margin: 0 auto; padding: 24px; display: grid; gap: 18px; }
.panel { border: 1px solid var(--line); background: var(--panel); backdrop-filter: blur(14px); box-shadow: var(--shadow); border-radius: 24px; padding: 20px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr); gap: 16px; }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; }
.hero h1, .panel h2, .panel h3 { margin: 0; letter-spacing: -0.03em; }
.hero-copy { margin: 12px 0 0; color: var(--ink-soft); }
.summary { display: grid; gap: 10px; }
.summary-chip, .status-pill { display: inline-flex; gap: 10px; padding: 10px 12px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,0.04); text-transform: uppercase; font-size: 12px; letter-spacing: 0.08em; }
.status-pill.running, .summary-chip.running { color: var(--running); }
.status-pill.done, .summary-chip.done { color: var(--done); }
.status-pill.solved, .summary-chip.solved { color: var(--done); }
.status-pill.attempted { color: var(--attempted); }
.status-pill.skipped, .summary-chip.skipped { color: var(--pending); }
.status-pill.timed_out, .summary-chip.timed_out { color: var(--failed); }
.status-pill.finished_unsolved, .summary-chip.finished_unsolved { color: var(--attempted); }
.status-pill.pending { color: var(--pending); }
.status-pill.failed { color: var(--failed); }
.workspace { display: grid; grid-template-columns: minmax(340px, 0.8fr) minmax(0, 1.8fr); gap: 18px; min-height: 74vh; }
.sidebar { display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 16px; }
.filters { display: grid; gap: 12px; }
label { display: grid; gap: 6px; color: var(--ink-soft); font-size: 13px; }
input, select { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; color: var(--ink); background: rgba(255,255,255,0.04); }
.challenge-list, .detail-content { display: grid; gap: 12px; overflow: auto; }
.challenge-card, .section, .queue-panel, .activity-panel, .empty-card { border-radius: 18px; border: 1px solid var(--line); background: var(--card); }
.challenge-card { width: 100%; text-align: left; padding: 16px; cursor: pointer; }
.challenge-card.selected { border-color: rgba(246,183,60,0.42); background: rgba(27,42,56,0.96); }
.challenge-card h3 { margin: 10px 0 0; }
.challenge-slug, .challenge-copy { margin: 8px 0 0; color: var(--ink-soft); }
.detail-empty { display: grid; place-items: center; min-height: 50vh; color: var(--ink-soft); }
.hidden { display: none; }
.section, .queue-panel, .activity-panel { padding: 18px; }
.section-head, .detail-head { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.meta-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.model-card { border-radius: 18px; border: 1px solid var(--line); background: var(--card); padding: 16px; min-width: 0; }
.meta-list { display: grid; gap: 10px; }
.meta-list div { padding: 10px 12px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,0.03); }
.meta-list dt { color: var(--ink-soft); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.meta-list dd { margin: 6px 0 0; font-family: "IBM Plex Mono", monospace; white-space: pre-wrap; word-break: break-word; }
.mono-block { margin: 0; padding: 16px; border-radius: 18px; border: 1px solid var(--line); background: rgba(8,16,24,0.92); overflow: auto; white-space: pre-wrap; word-break: break-word; font-family: "IBM Plex Mono", monospace; line-height: 1.55; }
.log-block { max-height: 460px; }
.model-log { max-height: 280px; font-size: 12px; }
.small-block { min-height: 180px; }
.ghost-button { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; color: var(--ink); background: rgba(255,255,255,0.03); cursor: pointer; }
@media (max-width: 1280px) { .model-grid { grid-template-columns: 1fr; } }
@media (max-width: 1080px) { .hero, .workspace, .meta-grid { grid-template-columns: 1fr; } }