@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Courier+Prime:wght@400;700&display=swap');

:root {
  --bg:        #ffffff;
  --surface:   #f0f4f8;
  --card:      #f8fafc;
  --border:    #dce6f0;
  --accent:    #1e3a8a;
  --accent2:   #16a34a;
  --accent3:   #dc2626;
  --accent4:   #2563eb;
  --text:      #0f172a;
  --muted:     #64748b;
  --positive:  #16a34a;
  --neutral:   #78716c;
  --negative:  #dc2626;
  --radius:    8px;
  --font-display: 'Inter', sans-serif;
  --font-mono:    'Courier Prime', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── subtle background ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-color: transparent;
  pointer-events: none; z-index: 0;
}

/* ── header ── */
header {
  padding: 28px 36px 0;
  display: flex; align-items: flex-end; justify-content: space-between;
  position: relative; z-index: 1;
}
.brand { display: flex; flex-direction: column; gap: 4px; }
.brand-tag {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.18em;
  color: var(--accent); text-transform: uppercase;
  font-weight: 600;
}
.brand-title {
  font-size: 26px; font-weight: 900; letter-spacing: -0.5px;
  line-height: 1;
  color: var(--accent);
}
.brand-title span { color: var(--accent); }
.header-meta {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--muted);
  text-align: right; line-height: 1.6;
  font-weight: 500;
}
.live-dot {
  display: inline-block; width: 7px; height: 7px;
  border-radius: 50%; background: var(--accent2);
  margin-right: 6px;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.7)} }

/* ── main layout ── */
main { padding: 28px 36px 48px; position: relative; z-index: 1; }

/* ── filter bar ── */
.filters {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 22px; margin-bottom: 28px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.filter-label {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  margin-right: 4px;
  font-weight: 600;
}
select {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 32px 8px 14px;
  font-family: var(--font-display); font-size: 12px;
  font-weight: 500;
  cursor: pointer; outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color .2s;
}
select:hover, select:focus { border-color: var(--accent); }

.filter-sep { width: 1px; height: 28px; background: var(--border); margin: 0 4px; }

#resetBtn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font-display); font-size: 11px;
  font-weight: 600;
  padding: 8px 16px; cursor: pointer;
  transition: all .2s;
}
#resetBtn:hover { 
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(44, 62, 80, 0.05);
}

/* ── kpi grid ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px; margin-bottom: 28px;
}
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 18px;
  position: relative; overflow: hidden;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.kpi-card:hover { 
  transform: translateY(-2px); 
  border-color: var(--muted);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.kpi-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: var(--card-accent, var(--accent));
}
.kpi-card:nth-child(1) { --card-accent: var(--accent); }
.kpi-card:nth-child(2) { --card-accent: var(--accent4); }
.kpi-card:nth-child(3) { --card-accent: var(--positive); }
.kpi-card:nth-child(4) { --card-accent: var(--accent2); }
.kpi-card:nth-child(5) { --card-accent: #c084fc; }

.kpi-icon { font-size: 18px; margin-bottom: 10px; }
.kpi-label {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
  font-weight: 600;
}
.kpi-value {
  font-size: 28px; font-weight: 900; line-height: 1;
  letter-spacing: -1px;
  color: var(--accent);
}
.kpi-value span { font-size: 14px; font-weight: 400; color: var(--muted); margin-left: 2px; }
.kpi-sub {
  font-family: var(--font-mono);
  font-size: 10px; color: var(--muted); margin-top: 6px;
}

/* ── charts grid ── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px; margin-bottom: 28px;
}
.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; flex-direction: column;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.chart-card:hover { 
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.chart-card.wide {
  grid-column: span 2;
}
.chart-title {
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.chart-title::before {
  content: ''; display: block;
  width: 3px; height: 14px;
  background: var(--accent); border-radius: 2px;
}
.chart-wrap {
  flex: 1; position: relative; min-height: 200px;
}

/* ── insight panel ── */
.insight-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex; align-items: flex-start; gap: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.insight-icon { font-size: 22px; margin-top: 2px; }
.insight-body {}
.insight-heading {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 6px;
  font-weight: 700;
}
#insightText {
  font-size: 14px; line-height: 1.7; color: var(--text);
  font-weight: 500;
}

/* ── footer ── */
footer {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px; color: var(--muted);
  padding: 16px 0 28px;
  position: relative; z-index: 1;
  letter-spacing: 0.1em;
}

/* ── empty state ── */
.empty-state {
  text-align: center; padding: 40px 20px;
  color: var(--muted);
  font-family: var(--font-mono); font-size: 12px;
}

/* ── responsive ── */
@media (max-width: 1100px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .charts-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-card.wide { grid-column: span 1; }
}
@media (max-width: 720px) {
  header { flex-direction: column; gap: 12px; align-items: flex-start; }
  main { padding: 20px 16px 40px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
}

/* ── number animation ── */
.kpi-value { transition: color .3s; }
.kpi-card.updating .kpi-value { color: var(--accent); }