:root {
  color-scheme: dark;
  --spo-bg: #070c12;
  --spo-surface: #0d151d;
  --spo-surface-raised: #111d27;
  --spo-border: #28404d;
  --spo-border-strong: #3b6270;
  --spo-text: #f4f8fb;
  --spo-muted: #9babb7;
  --spo-primary: #62c9ca;
  --spo-primary-strong: #38b6ba;
  --spo-amber: #f0b44c;
  --spo-success: #46c98b;
  --spo-danger: #f06d78;
  --spo-focus: #8de6e1;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: var(--spo-bg);
  color: var(--spo-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}
button, input { font: inherit; letter-spacing: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, a:focus-visible {
  outline: 2px solid var(--spo-focus);
  outline-offset: 2px;
}