/* =============================================
   CSS Reset & Variablen
   ============================================= */

:root {
  --color-bg: #f9f9fb;
  --color-text: #222;
  --color-accent: #0050b3;
  --color-border: #ddd;
  --font-base: 'Segoe UI', Arial, sans-serif;
  --font-size-base: 16px;
  --spacing-unit: 8px;
  --max-content-width: 1200px;
}

html {
  box-sizing: border-box;
  font-size: var(--font-size-base);
}

*, *::before, *::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  line-height: 1.5;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =============================================
   Grundlayout
   ============================================= */

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-header {
  flex: 0 0 auto;
  background-color: var(--color-accent);
  color: #fff;
  padding: calc(var(--spacing-unit) * 2);
  text-align: center;
}

.app-main {
  flex: 1 1 auto;
  padding: calc(var(--spacing-unit) * 2);
  max-width: var(--max-content-width);
  margin: 0 auto;
  width: 100%;
}

.app-footer {
  flex: 0 0 auto;
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: calc(var(--spacing-unit) * 1.5);
  font-size: 0.875rem;
  color: #666;
}

.app-footer::after {
  content: "© 2026 Donau2Space.de";
  display: block;
  margin-top: var(--spacing-unit);
}