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

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 0.5em 0;
  font-weight: 600;
}

p {
  margin: 0 0 1em 0;
  color: var(--color-text-muted);
  max-width: 70ch;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
}

/* Feines Blueprint-Raster als Hintergrundtextur, nur dekorativ */
.blueprint-grid {
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center;
  opacity: 0.12;
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Primärer Button im Bauplan-Stil: Eckmarkierungen statt Schatten-Spielerei */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.9em 1.6em;
  background: var(--color-primary);
  color: #0b1d33;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition), background var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-dim);
  transform: translateY(-1px);
}

.btn-primary:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* Grundlayout: Seitenleiste links, Inhalt rechts */
.page-with-sidebar {
  display: flex;
  min-height: 100vh;
}

.page-content {
  flex: 1;
  min-width: 0;
}