:root {
  color-scheme: light;
  --bg: #f4f6fb;
  --ink: #15202b;
  --muted: #5f6b7a;
  --line: #d5dce8;
  --panel: #ffffff;
  --accent: #2b59c3;
  --sam: #0f766e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell { max-width: 1440px; margin: 0 auto; padding: 24px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
h1, h2, p { margin: 0; }
h1 { font-size: 28px; }
h2 { font-size: 16px; }
p { color: var(--muted); }
.button {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  padding: 9px 12px;
  text-decoration: none;
  background: #fff;
}
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 16px;
  align-items: start;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
.panel-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.panel-title span { color: var(--muted); font-size: 13px; }
.tree, .tree ol { list-style: none; padding-left: 0; margin: 0; }
.tree > li { border-top: 1px solid var(--line); padding: 12px 0; }
summary {
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 700;
}
summary a { color: var(--accent); font-size: 13px; }
.region-pill {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  margin: 2px 4px 2px 0;
  font-size: 12px;
  color: var(--muted);
}
.solution {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbff;
}
.solution img, .scan-image {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  object-position: top left;
  background: #eef2f8;
  border: 1px solid var(--line);
  border-radius: 6px;
}
pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #f2f4f8;
  border-radius: 6px;
  padding: 10px;
  margin: 10px 0 0;
  color: #2c343b;
  font-size: 12px;
  line-height: 1.45;
}
.logs { max-height: calc(100vh - 110px); overflow: auto; }
.log { border-top: 1px solid var(--line); padding: 10px 0; }
.log time { display: block; color: var(--muted); font-size: 11px; margin-bottom: 4px; }
.log strong { color: var(--sam); }
.log.error strong { color: #b42318; }
.empty { padding: 32px 0; }
.page-detail {
  display: grid;
  grid-template-columns: minmax(280px, 52vw) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
@media (max-width: 960px) {
  .layout, .page-detail { grid-template-columns: 1fr; }
  .logs { max-height: none; }
}