:root {
  --bg: #0b1320;
  --panel: #111a2d;
  --text: #e9eef9;
  --muted: #9db0d1;
  --accent: #36a2eb;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1000px;
  margin: 24px auto;
  padding: 0 16px;
}

h1 {
  font-size: 20px;
  margin: 0 0 16px;
}

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

.logo {
  height: 40px;
  width: auto;
  display: inline-block;
}

.controls {
  display: flex;
  gap: 12px;
  align-items: end;
  flex-wrap: wrap;
  background: var(--panel);
  border-radius: 8px;
  padding: 12px;
}

label { font-size: 12px; color: var(--muted); display: grid; gap: 6px; }
input[type="date"] { 
  background: #0f1a2c; color: var(--text); border: 1px solid #233355; border-radius: 6px; padding: 8px; 
}

button#refresh {
  background: var(--accent);
  color: #032033;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
}

.chart-wrap { height: 420px; margin-top: 16px; background: var(--panel); border-radius: 8px; padding: 12px; }
.status { margin-top: 8px; color: var(--muted); font-size: 12px; }