:root {
  --bg: #0d0f0a;
  --panel: #1a1d16;
  --text: #ffffff;
  --muted: #aaaaaa;
  --accent: #bef264;
  --accent-yellow: #fde047;
  --accent-purple: #6e47fd;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 24px 24px;
  background: var(--panel);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

header h1 { margin: 0 0 4px; font-size: 20px; }
header p { margin: 0; color: var(--muted); }

main {
  padding: 16px 24px 64px;
  max-width: 1200px;
  margin: 0 auto;
}

.controls {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  margin-bottom: 20px;
}

label { color: var(--muted); }
input, button {
  background: #0c1020;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 6px 8px;
}

button { cursor: pointer; }
button:hover { border-color: var(--accent); }

section { margin-bottom: 28px; }
section h2 { font-size: 16px; font-weight: 600; margin: 0 0 8px; color: var(--muted); }

.chart {
  width: 100%;
  height: 480px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 8px;
}

.chart svg { width: 100%; height: 100%; }

.logo {
  height: 12px;
  margin-bottom: 6px;
  display: inline-block;
}