:root,
:root[data-theme='dark'] {
  --bg: #0F1828;
  --panel: #162133;
  --panel-2: #1B2738;
  --line: #2A3A52;
  --line-strong: #3D5576;
  --sel-bg: #1F3150;
  --sel-line: #8FB4E8;
  --text: #E8EEF7;
  --muted: #9DB0C8;
  --primary: #2A4566;
  --primary-hover: #34557C;
  --on-primary: #E8EEF7;
  --danger: #E5484D;
  --danger-text: #ff9a9d;
  --warn-text: #f2c66d;
  --ok-text: #8fd9a8;
  --backdrop: rgb(6 11 20 / 0.72);
  --shadow-lg: 0 24px 80px rgb(0 0 0 / 0.55);
  --shadow-card: 0 10px 34px rgb(0 0 0 / 0.45);
  --radius: 14px;

  color-scheme: dark;
}

/* Hell: nur die Oberfläche; die Kartenfarben (Vorschau, PNG) hängen nicht vom Theme ab. */
:root[data-theme='light'] {
  --bg: #F4F6FB;
  --panel: #FFFFFF;
  --panel-2: #EEF1F7;
  --line: #D9DFEA;
  --line-strong: #B8C2D3;
  --sel-bg: #E3ECFB;
  --sel-line: #3A6FD8;
  --text: #0F1828;
  --muted: #5B6B82;
  --primary: #2A4566;
  --primary-hover: #34557C;
  --on-primary: #FFFFFF;
  --danger-text: #B42318;
  --warn-text: #8A5A00;
  --ok-text: #1B6B3A;
  --backdrop: rgb(15 24 40 / 0.5);
  --shadow-lg: 0 24px 80px rgb(15 24 40 / 0.28);
  --shadow-card: 0 10px 34px rgb(15 24 40 / 0.22);

  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Nunito Sans Variable', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: var(--sel-line);
}

:focus-visible {
  outline: 2px solid var(--sel-line);
  outline-offset: 2px;
}

#app-root {
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px;
}

#app-root h1 {
  margin: 0 0 16px;
  font-size: 1.6rem;
  line-height: 1.2;
}

#app-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

#app-footer p {
  max-width: 900px;
  margin: 0 auto;
}