:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e3e6eb;
  --text: #16191f;
  --text-muted: #5b6472;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-text: #ffffff;
  --link: #1a4fd6;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
  --score-high-bg: #dcf5e6;  --score-high-fg: #11643a;
  --score-good-bg: #dbeafe;  --score-good-fg: #1e40af;
  --score-mid-bg: #fdf0d5;   --score-mid-fg: #8a4b06;
  --score-low-bg: #eceef1;   --score-low-fg: #4a5260;
  --error-bg: #fdecec;       --error-fg: #9b1c1c;
  --ok-bg: #e8f5ee;          --ok-fg: #165c36;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --border: #2a3039;
    --text: #e7eaee;
    --text-muted: #9aa3b0;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-text: #ffffff;
    --link: #8ab4ff;
    --shadow: none;
    --score-high-bg: #12382a;  --score-high-fg: #7ee2a8;
    --score-good-bg: #172a4d;  --score-good-fg: #9cc2ff;
    --score-mid-bg: #3d2c0e;   --score-mid-fg: #f5c46b;
    --score-low-bg: #262b33;   --score-low-fg: #b3bac5;
    --error-bg: #3a1717;       --error-fg: #ffb4b4;
    --ok-bg: #12301f;          --ok-fg: #8fe0b0;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--text-muted); }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 24px 0 20px;
}
.header-row { display: flex; gap: 16px; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; }
h1 { margin: 0; font-size: 1.6rem; letter-spacing: -0.01em; }
.tagline { margin: 4px 0 0; color: var(--text-muted); max-width: 560px; }
.refresh { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.refresh p { margin: 0; font-size: 0.85rem; text-align: right; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: 0.95rem;
  padding: 9px 18px; border-radius: 8px; border: 0;
  background: var(--accent); color: var(--accent-text); cursor: pointer;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-primary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn-primary:disabled { opacity: 0.75; cursor: progress; }
.spinner {
  display: none; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent;
  animation: spin 0.8s linear infinite;
}
.btn-primary.loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: flex-end;
  margin: 24px 0 8px; padding: 16px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px;
}
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
.filters select {
  font: inherit; font-size: 0.95rem; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 7px; padding: 7px 10px; min-width: 150px;
}
.result-count { margin: 0 0 6px auto; font-size: 0.85rem; }

.status { margin: 12px 0; padding: 10px 14px; border-radius: 8px; font-size: 0.92rem; background: var(--ok-bg); color: var(--ok-fg); }
.status.error { background: var(--error-bg); color: var(--error-fg); }
.status.info { background: var(--score-good-bg); color: var(--score-good-fg); }

.topic-group { margin-top: 28px; }
.topic-group h2 { font-size: 1.15rem; margin: 0 0 2px; display: flex; align-items: baseline; gap: 10px; }
.topic-group h2 .count { font-size: 0.85rem; font-weight: 500; color: var(--text-muted); }
.topic-group .topic-desc { margin: 0 0 12px; font-size: 0.88rem; color: var(--text-muted); }
.cards { display: grid; gap: 12px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 18px; box-shadow: var(--shadow);
}
.card-head { display: flex; gap: 12px; align-items: flex-start; justify-content: space-between; }
.headline { margin: 0; font-size: 1.05rem; line-height: 1.35; }
.headline a { color: var(--link); text-decoration: none; }
.headline a:hover { text-decoration: underline; }
.meta { margin: 6px 0 8px; font-size: 0.85rem; color: var(--text-muted); }
.meta .dot { margin: 0 6px; }
.summary { margin: 0; font-size: 0.95rem; }

.score {
  flex-shrink: 0; font-size: 0.8rem; font-weight: 700; font-variant-numeric: tabular-nums;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.score.high { background: var(--score-high-bg); color: var(--score-high-fg); }
.score.good { background: var(--score-good-bg); color: var(--score-good-fg); }
.score.mid  { background: var(--score-mid-bg);  color: var(--score-mid-fg); }
.score.low  { background: var(--score-low-bg);  color: var(--score-low-fg); }

.empty { margin: 40px 0; text-align: center; color: var(--text-muted); }
.site-footer { margin: 40px auto 32px; font-size: 0.82rem; }

@media (max-width: 600px) {
  .refresh { align-items: flex-start; }
  .refresh p { text-align: left; }
  .filters label, .filters select { width: 100%; }
  .result-count { margin-left: 0; }
}