/* ── Reset & base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f172a;
  --surface:   #1e293b;
  --border:    #334155;
  --text:      #f1f5f9;
  --muted:     #94a3b8;
  --accent:    #3b82f6;

  --elite:  #10b981;
  --high:   #3b82f6;
  --medium: #f59e0b;
  --low:    #ef4444;

  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
}

html { font-size: 15px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header ────────────────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
  flex-shrink: 0;
}

.logo h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.3px;
  line-height: 1.2;
}

.repo-label {
  font-size: .75rem;
  color: var(--muted);
  font-family: "SF Mono", "Fira Code", monospace;
}

.controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ── Date range picker ─────────────────────────────────────── */
.date-range {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  color: var(--muted);
}

.date-range label {
  font-size: .75rem;
  color: var(--muted);
  white-space: nowrap;
}

.date-range input[type="text"] {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: .8rem;
  padding: 4px 8px;
  cursor: pointer;
  outline: none;
  width: 108px;
  transition: border-color .15s;
  caret-color: transparent;
}

.date-range input[type="text"]:focus,
.date-range input[type="text"]:hover {
  border-color: var(--accent);
}

/* Flatpickr calendar overrides to match dark theme */
.flatpickr-calendar {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
}
.flatpickr-day.selected,
.flatpickr-day.selected:hover {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
}
.flatpickr-day:hover { background: var(--border) !important; }

#date-reset {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: .9rem;
  padding: 3px 8px;
  cursor: pointer;
  transition: border-color .15s, color .15s;
  line-height: 1;
}

#date-reset:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* ── Toggle ────────────────────────────────────────────────── */
.toggle-group {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.toggle-btn {
  padding: 6px 16px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, color .15s;
}

.toggle-btn.active {
  background: var(--accent);
  color: #fff;
}

.toggle-btn:hover:not(.active) {
  background: var(--border);
  color: var(--text);
}

/* ── Status pill ───────────────────────────────────────────── */
.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  color: var(--muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}

.status-dot.ok    { background: var(--elite); }
.status-dot.error { background: var(--low); }
.status-dot.loading {
  background: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .3; }
}

/* ── Main ──────────────────────────────────────────────────── */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 24px 48px;
}

/* ── Scorecard ─────────────────────────────────────────────── */
.scorecard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.score-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: border-color .2s;
}

.score-card:hover { border-color: var(--accent); }

.score-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.score-label {
  font-size: .78rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.score-badge {
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--border);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .3px;
}

.score-badge.elite  { background: rgba(16,185,129,.15); color: var(--elite); }
.score-badge.high   { background: rgba(59,130,246,.15); color: var(--high); }
.score-badge.medium { background: rgba(245,158,11,.15); color: var(--medium); }
.score-badge.low    { background: rgba(239,68,68,.15);  color: var(--low); }

.score-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -1px;
}

.score-sub {
  font-size: .75rem;
  color: var(--muted);
}

/* ── Charts grid ───────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.chart-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.chart-panel h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.chart-desc {
  font-size: .78rem;
  color: var(--muted);
}

.band-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .72rem;
  color: var(--muted);
  white-space: nowrap;
  padding-top: 2px;
}

.band-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.band-dot.elite  { background: var(--elite); margin-left: 8px; }
.band-dot.high   { background: var(--high); margin-left: 8px; }

.chart-wrap {
  position: relative;
  height: 260px;
}

/* ── Footer ────────────────────────────────────────────────── */
footer {
  margin-top: 40px;
  text-align: center;
  font-size: .78rem;
  color: var(--muted);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .scorecard     { grid-template-columns: repeat(2, 1fr); }
  .charts-grid   { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .scorecard { grid-template-columns: 1fr; }
  .header-content { padding: 0 16px; }
  main { padding: 16px 16px 40px; }
}