:root {
  color-scheme: light;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #18202b;
  background: #f5f7fa;
}

* { box-sizing: border-box; }

body { margin: 0; }

header {
  padding: 48px max(24px, calc((100% - 1120px) / 2));
  color: #fff;
  background: linear-gradient(120deg, #103b5c, #1b6b72);
}

h1 { margin: 0 0 10px; font-size: clamp(28px, 5vw, 44px); }
h2 { margin: 10px 0; font-size: 18px; }
p { line-height: 1.6; }

.eyebrow { margin: 0 0 8px; font-size: 12px; letter-spacing: .14em; opacity: .78; }
.lead { margin: 0; max-width: 680px; opacity: .9; }

main { width: min(1120px, calc(100% - 32px)); margin: 28px auto 56px; }
.panel, .notice { padding: 24px; margin-bottom: 20px; border-radius: 14px; }
.panel { background: #fff; box-shadow: 0 4px 18px rgb(20 42 66 / 8%); }
.notice { color: #664700; background: #fff7dd; border: 1px solid #f0d18d; }

.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
select, input, textarea, button {
  min-height: 38px; padding: 8px 10px; border: 1px solid #b7c5d0; border-radius: 7px;
  font: inherit;
}
textarea { min-height: 80px; resize: vertical; }
button { color: #fff; background: #126571; border-color: #126571; cursor: pointer; }
button:hover { background: #0e4d57; }
button:disabled { cursor: not-allowed; opacity: .55; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 18px; }
.card { padding: 18px; border: 1px solid #dae3ea; border-radius: 10px; }
.card-meta { font-size: 12px; color: #0f6170; font-weight: 700; }
.evidence { color: #45535f; }
.time, .disclaimer, .muted { color: #667582; font-size: 13px; }
.source-link { color: #075b9a; font-weight: 600; }

details > summary { cursor: pointer; font-weight: 700; }
.admin-panel details[open] > summary { margin-bottom: 18px; }
.nested { margin-top: 22px; padding-top: 18px; border-top: 1px solid #dce5eb; }
.token-label { max-width: 420px; margin: 12px 0; }
.source-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 16px; }
.source-form > button { align-self: end; }
.checkbox { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.checkbox input { min-height: 0; }
.admin-table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 13px; }
.admin-table th, .admin-table td { padding: 8px; border-bottom: 1px solid #dce5eb; text-align: left; vertical-align: top; }
.admin-table button { min-height: 30px; margin-right: 6px; padding: 4px 8px; font-size: 12px; }

@media (max-width: 700px) {
  .source-form { grid-template-columns: 1fr; }
  .admin-table { display: block; overflow-x: auto; }
}