@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
  --bg:           #060611;
  --surface:      #0c0c1f;
  --surface-2:    #111128;
  --surface-h:    #14142e;
  --border:       #1c1c3a;
  --border-h:     #2e2e5e;
  --text-1:       #e2e4f0;
  --text-2:       #888aaa;
  --text-3:       #44466a;
  --amber:        #f59e0b;
  --amber-dim:    rgba(245,158,11,0.12);
  --crimson:      #f04c5f;
  --crimson-dim:  rgba(240,76,95,0.12);
  --violet:       #9d7af0;
  --violet-dim:   rgba(157,122,240,0.12);
  --green:        #34d399;
  --green-dim:    rgba(52,211,153,0.12);
  --font-ui:      'Syne', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --radius:       6px;
  --radius-lg:    10px;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; font: inherit; }

/* ── Base ────────────────────────────────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-ui);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Subtle grid texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(6,6,17,0.92);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--amber);
}
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-2);
  transition: color 0.15s;
}
.nav-link:hover { color: var(--text-1); }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--border);
  padding: 72px 24px 56px;
}
.hero-inner { max-width: 1100px; margin: 0 auto; }
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  background: var(--amber-dim);
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  max-width: 640px;
}
.hero-sub {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 40px;
}

/* Stats strip */
.stats-strip {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 28px 0 0;
}
.stat:first-child { padding-left: 0; }
.stat-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--text-1);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
  margin: 0 28px 0 0;
}

/* ── Feed section ────────────────────────────────────────────────────────── */
.feed-section {
  position: relative;
  z-index: 1;
  padding: 48px 24px 80px;
}
.feed-inner { max-width: 1100px; margin: 0 auto; }
.feed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}
.feed-title {
  font-size: 13px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-2);
  text-transform: uppercase;
}
.feed-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s;
}
.filter-select:hover { border-color: var(--border-h); }
.filter-select:focus { outline: none; border-color: var(--amber); color: var(--text-1); }
.filter-select option { background: var(--surface-2); }

/* Feed list */
.feed { display: flex; flex-direction: column; gap: 12px; }
.feed-loading {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-3);
  padding: 48px 0;
  text-align: center;
}
.feed-empty {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-3);
  padding: 40px 0;
  text-align: center;
}

/* ── Incident card ───────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}
.card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}
.card[data-type="pr_slowdown"]::before  { background: var(--amber); }
.card[data-type="issue_spike"]::before  { background: var(--crimson); }
.card[data-type="star_spike"]::before   { background: var(--violet); }
.card:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  transform: translateY(-1px);
}
.card.high-severity { border-color: rgba(245,158,11,0.2); }

/* Card header */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Card repo */
.card-repo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-repo-link {
  color: var(--text-3);
  transition: color 0.15s;
  display: flex;
  align-items: center;
}
.card-repo-link:hover { color: var(--text-2); }

/* Card window date */
.card-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.03em;
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
}
.badge-pr_slowdown  { background: var(--amber-dim);   color: var(--amber);   border: 1px solid rgba(245,158,11,0.25); }
.badge-issue_spike  { background: var(--crimson-dim); color: var(--crimson); border: 1px solid rgba(240,76,95,0.25); }
.badge-star_spike   { background: var(--violet-dim);  color: var(--violet);  border: 1px solid rgba(157,122,240,0.25); }
.badge-high         { background: var(--green-dim);   color: var(--green);   border: 1px solid rgba(52,211,153,0.25); }
.badge-medium       { background: var(--amber-dim);   color: var(--amber);   border: 1px solid rgba(245,158,11,0.25); }
.badge-low          { background: rgba(107,114,128,0.1); color: #6b7280;    border: 1px solid rgba(107,114,128,0.2); }

/* ── Metric row ──────────────────────────────────────────────────────────── */
.card-metrics {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  flex-wrap: wrap;
}
.metric-observed {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.02em;
}
.metric-delta {
  font-size: 12px;
  font-weight: 500;
  color: var(--crimson);
  padding: 1px 6px;
  background: var(--crimson-dim);
  border-radius: 3px;
}
.metric-sep  { color: var(--text-3); font-size: 12px; }
.metric-baseline { font-size: 13px; color: var(--text-2); }
.metric-z {
  font-size: 12px;
  color: var(--text-3);
  margin-left: 4px;
}

/* Card summary */
.card-summary {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.card-chips { display: flex; align-items: center; gap: 6px; }
.chip {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 3px;
}
.view-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s, gap 0.15s;
}
.card:hover .view-link { color: var(--amber); gap: 8px; }

/* ── Report page ─────────────────────────────────────────────────────────── */
.report-main {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 36px;
  transition: color 0.15s;
}
.back-link:hover { color: var(--text-2); }

/* Report header */
.report-header {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.report-header-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.report-repo {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: 10px;
}
.report-repo a { color: var(--text-3); transition: color 0.15s; }
.report-repo a:hover { color: var(--text-2); }
.report-window {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  margin-top: 8px;
}

/* Anomaly panel */
.anomaly-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
}
@media (max-width: 600px) {
  .anomaly-panel { grid-template-columns: 1fr; text-align: center; }
  .anomaly-arrow { transform: rotate(90deg); }
}
.anomaly-side { display: flex; flex-direction: column; gap: 6px; }
.anomaly-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.anomaly-value {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.03em;
}
.anomaly-side.observed .anomaly-value { color: var(--crimson); }
.anomaly-side.baseline .anomaly-value { color: var(--text-2); }
.anomaly-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.anomaly-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.anomaly-zscore {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.08em;
}
.arrow-icon { color: var(--crimson); font-size: 24px; }

/* Sections */
.report-section { margin-bottom: 32px; }
.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* Root cause */
.root-cause-text {
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-1);
  font-weight: 500;
}

/* Evidence */
.evidence-list { display: flex; flex-direction: column; gap: 10px; }
.evidence-item {
  display: flex;
  gap: 14px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}
.evidence-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  padding-top: 2px;
  min-width: 18px;
}

/* Citations */
.citations-grid { display: flex; flex-direction: column; gap: 10px; }
.citation-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.citation-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.badge-sql_result    { background: rgba(96,165,250,0.1); color: #60a5fa; border: 1px solid rgba(96,165,250,0.2); }
.badge-artifact_chunk { background: var(--violet-dim); color: var(--violet); border: 1px solid rgba(157,122,240,0.25); }
.badge-release_note  { background: var(--green-dim); color: var(--green); border: 1px solid rgba(52,211,153,0.25); }
.citation-url {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #60a5fa;
  word-break: break-all;
  transition: color 0.15s;
}
.citation-url:hover { color: #93c5fd; }
.citation-excerpt {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.5;
  font-style: italic;
  padding-left: 10px;
  border-left: 2px solid var(--border);
}

/* Limitations */
.limitations-text {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.65;
  font-style: italic;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* Report footer strip */
.report-footer-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.rfooter-sep { color: var(--border-h); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 20px 24px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
}
.footer-logo { color: var(--amber); letter-spacing: 0.1em; }
.footer-sep { color: var(--border-h); }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Animations ──────────────────────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card { animation: fadeSlideUp 0.3s ease both; }

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0); }
  50%       { box-shadow: 0 0 0 3px rgba(245,158,11,0.08); }
}
.card.high-severity { animation: fadeSlideUp 0.3s ease both, pulse-border 3s ease-in-out infinite; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero { padding: 48px 20px 40px; }
  .stats-strip { gap: 16px; }
  .stat-divider { display: none; }
  .stat { padding: 0; }
  .card { padding: 16px 18px; }
  .feed-header { flex-direction: column; align-items: flex-start; }
  .anomaly-panel { padding: 20px; }
  .report-repo { font-size: 16px; }
  .anomaly-value { font-size: 28px; }
}