:root {
  --blue: #005a8d;
  --blue-dark: #003f63;
  --green: #2f7d32;
  --orange: #c46a00;
  --grey-100: #f5f7fa;
  --grey-200: #e5e8ed;
  --grey-700: #4a4f55;
  --text: #1f2933;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--grey-100);
}

.page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white;
  padding: 28px 32px;
  border-radius: 18px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.14);
  margin-bottom: 20px;
}

.hero h1 {
  margin: 0 0 8px 0;
  font-size: 30px;
  line-height: 1.2;
}

.hero p {
  margin: 0;
  max-width: 860px;
  font-size: 15px;
  line-height: 1.5;
  opacity: 0.95;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  gap: 16px;
  align-items: end;
  margin: 20px 0;
}

.control-card {
  background: white;
  padding: 16px;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--grey-700);
}

select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--grey-200);
  border-radius: 10px;
  background: white;
  font-size: 15px;
}

.meta {
  font-size: 13px;
  color: var(--grey-700);
  line-height: 1.45;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.kpi {
  background: white;
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  min-height: 118px;
}

.kpi .label {
  color: var(--grey-700);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.kpi .value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--blue-dark);
}

.kpi .sub {
  margin-top: 8px;
  color: var(--grey-700);
  font-size: 12px;
  line-height: 1.35;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  min-height: 420px;
}

.card-wide {
  grid-column: 1 / -1;
}

.card h2 {
  margin: 0 0 6px 0;
  font-size: 18px;
}

.card .hint {
  margin: 0 0 10px 0;
  font-size: 12px;
  color: var(--grey-700);
}

.plot {
  width: 100%;
  height: 350px;
}

.plot-wide {
  height: 390px;
}

.note {
  margin-top: 18px;
  color: var(--grey-700);
  font-size: 12px;
  line-height: 1.45;
}

@media (max-width: 920px) {
  .toolbar {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .page {
    padding: 14px;
  }

  .hero {
    padding: 22px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }
}