:root {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color-scheme: light;
  --bg: #f7f9fc;
  --card: #ffffff;
  --primary: #1554a1;
  --muted: #5f6b7a;
  --border: #dfe6ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: #1c2a39;
}

.app-header {
  padding: 2rem clamp(1rem, 4vw, 3rem);
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.app-header h1 {
  margin: 0.25rem 0 0;
}

.eyebrow {
  margin: 0;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.tabs a {
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: all 0.2s ease;
}

.tabs a.active,
.tabs a:hover {
  border-color: var(--primary);
  background: rgba(21, 84, 161, 0.1);
  color: var(--primary);
}

.container {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 8px 30px rgba(21, 84, 161, 0.07);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0 2rem;
  padding: 1rem;
  background: #f0f4fb;
  border-radius: 0.75rem;
}

.filters label {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  color: var(--muted);
  min-width: 140px;
}

.filters select,
.filters input {
  margin-top: 0.35rem;
  padding: 0.45rem 0.6rem;
  border-radius: 0.5rem;
  border: 1px solid #c7d3e3;
  font-size: 1rem;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.chart-wrapper {
  width: 100%;
  min-height: 320px;
}

.chart-wrapper canvas {
  width: 100% !important;
  height: auto !important;
}

.chart-status {
  font-size: 0.9rem;
  color: var(--muted);
  min-height: 1.25rem;
  margin: 0.5rem 0 0;
}

.app-footer {
  padding: 1rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}