/* Wattbüro – gemeinsames Stylesheet für alle Seiten */
:root {
  --wb-dark: #0f1b2b;
  --wb-blue: #1b4965;
  --wb-accent: #f2a541;
  --wb-green: #4c9a6a;
  --wb-bg: #f7f9fb;
  --wb-text: #1a1a1a;
  --wb-muted: #5a6472;
  --wb-max-width: 960px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--wb-bg);
  color: var(--wb-text);
  line-height: 1.6;
}

header.site-header {
  background: var(--wb-dark);
  color: #fff;
  padding: 1rem 1.25rem;
}

.site-header .header-inner {
  max-width: var(--wb-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-header .logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-header .logo span {
  color: var(--wb-accent);
}

.site-header nav a {
  color: #d8e3ee;
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.95rem;
}

.site-header nav a:hover,
.site-header nav a.active {
  color: var(--wb-accent);
}

main {
  max-width: var(--wb-max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.hero {
  background: linear-gradient(120deg, var(--wb-blue), var(--wb-dark));
  color: #fff;
  padding: 3rem 1.5rem;
  border-radius: 10px;
  margin-bottom: 2.5rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
}

.hero p {
  margin: 0;
  color: #d8e3ee;
  max-width: 40em;
}

.section-title {
  font-size: 1.3rem;
  margin: 2.5rem 0 1rem;
  border-bottom: 2px solid var(--wb-accent);
  padding-bottom: 0.4rem;
  display: inline-block;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background: #fff;
  border: 1px solid #e3e8ee;
  border-radius: 8px;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: 0 6px 18px rgba(15, 27, 43, 0.08);
  transform: translateY(-2px);
}

.card .tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--wb-blue);
  background: #eaf1f6;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.6rem;
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--wb-muted);
  font-size: 0.92rem;
}

.post-meta {
  color: var(--wb-muted);
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

article.post h1 {
  margin-bottom: 0.3rem;
}

article.post .affiliate-note {
  background: #fff7e8;
  border: 1px solid #f2d8a1;
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  margin: 1.5rem 0;
  color: #6b4f16;
}

footer.site-footer {
  border-top: 1px solid #e3e8ee;
  padding: 1.5rem 1.25rem;
  text-align: center;
  color: var(--wb-muted);
  font-size: 0.85rem;
}

.instructions {
  background: #eef6ef;
  border: 1px dashed var(--wb-green);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  margin-bottom: 2rem;
}