:root {
  color-scheme: dark;
  --bg-primary: #181c24;
  --bg-secondary: #11151c;
  --panel-bg: rgba(25, 30, 40, 0.92);
  --panel-border: rgba(125, 148, 186, 0.16);
  --panel-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --accent: #6ee7f9;
  --accent-strong: #22d3ee;
  --canvas-bg: #0b1017;
  --grid-color: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top, rgba(34, 211, 238, 0.08), transparent 26%),
    linear-gradient(135deg, #151923 0%, #0f131b 55%, #0a0d14 100%);
  color: var(--text-primary);
}

body {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
input,
textarea,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
}