/* ---------------------------------------------------
   Letterpage – Global Theme (unchanged)
--------------------------------------------------- */

:root {
  --font-main: "Inter", system-ui, sans-serif;

  /* Light Theme */
  --bg: #f5f5f7;
  --bg-card: #ffffff;
  --bg-accent: #eef0ff;
  --text: #222;
  --text-muted: #555;
  --border: #dcdcdc;
  --brand: #4a5cff;
  --brand-glow: rgba(74, 92, 255, 0.25);
}

[data-theme="dark"] {
  --bg: #0f0f12;
  --bg-card: #1a1a1f;
  --bg-accent: #24242c;
  --text: #e6e6e6;
  --text-muted: #aaa;
  --border: #333;
  --brand: #6d7bff;
  --brand-glow: rgba(109, 123, 255, 0.35);
}

/* ---------------------------------------------------
   Base Layout
--------------------------------------------------- */

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

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.2rem;
}

/* ---------------------------------------------------
   Header & Branding
--------------------------------------------------- */

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.brand-logo {
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 1.4rem;
  padding: 0.8rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 0 12px var(--brand-glow);
}

.brand-text h1 {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.3;
}

.brand-text span {
  color: var(--brand);
}

.tagline {
  margin-top: 0.5rem;
  font-size: 1rem;
  color: var(--text-muted);
}

/* ---------------------------------------------------
   Cards
--------------------------------------------------- */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.4rem;
  border-radius: 0.8rem;
  margin: 1.4rem 0;
}

.card-accent {
  border-left: 4px solid var(--brand);
  box-shadow: 0 0 12px var(--brand-glow);
}

/* ---------------------------------------------------
   Buttons
--------------------------------------------------- */

.glow-button {
  display: inline-block;
  padding: 0.9rem 1.4rem;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  border-radius: 0.5rem;
  margin-top: 1rem;
  font-weight: 600;
  box-shadow: 0 0 12px var(--brand-glow);
  transition: 0.2s;
  text-align: center;
}

.glow-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 18px var(--brand-glow);
}

.wb-button-min {
  padding: 0.5rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  cursor: pointer;
  color: var(--text);
  transition: 0.2s;
  font-size: 0.9rem;
}

.wb-button-min:hover {
  background: var(--bg-accent);
}

/* ---------------------------------------------------
   Footer
--------------------------------------------------- */

.footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr 1fr;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-heading {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--brand);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------
   Responsive – Smartphone Optimierung
--------------------------------------------------- */

@media (max-width: 700px) {

  .page {
    padding: 1rem;
  }

  .brand {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-logo {
    font-size: 1.2rem;
    padding: 0.7rem 0.9rem;
  }

  .brand-text h1 {
    font-size: 1.3rem;
  }

  .card {
    padding: 1.2rem;
  }

  .footer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .glow-button {
    width: 100%;
  }

  ul, ol {
    padding-left: 1rem;
  }
}