:root {
  --color-bg: #f5f7fa;
  --color-card-bg: #ffffff;
  --color-primary: #282;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --radius: 14px;
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

header {
  text-align: center;
  padding: 60px 20px 30px;
}

header h1 {
  font-size: 2.2rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin: 0;
}

.offers-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 24px 60px;
}

.offer-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.offer-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.category-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.bank-name {
  font-size: 1.3rem;
  margin: 0;
}

.zins {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 4px 0;
}

.details {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0;
}

.cta-button {
  margin-top: auto;
  display: inline-block;
  text-align: center;
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.15s ease;
}

.cta-button:hover {
  background: #1543ad;
}

footer {
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.section-title {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-text);
}

.section-divider {
  max-width: 900px;
  margin: 40px auto;
  border: none;
  border-top: 1px solid var(--color-border);
}

.besonderheiten {
  font-size: 0.85rem;
  color: #92400e;
  background: #fef3c7;
  padding: 8px 10px;
  border-radius: 8px;
  margin: 4px 0 0;
  line-height: 1.4;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.affiliate-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 3px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.faq-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px 24px 60px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "+ ";
  color: var(--color-primary);
  font-weight: 700;
}

.faq-item[open] summary::before {
  content: "– ";
}

.faq-item p {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.faq-item ol {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.legal-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px 24px 60px;
  line-height: 1.6;
}

.legal-container h2 {
  font-size: 1.1rem;
  margin-top: 32px;
  margin-bottom: 8px;
}

.legal-container h2:first-of-type {
  margin-top: 0;
}

.legal-links {
  margin-top: 6px;
  font-size: 0.8rem;
}

.legal-links a {
  color: var(--color-text-muted);
  text-decoration: underline;
}

.bank-logo {
  max-width: 140px;
  max-height: 48px;
  height: auto;
  width: auto;
  object-fit: contain;
  margin: 4px 0;
}

.info-icon {
  font-size: 0.75rem;
  margin-left: 2px;
  opacity: 0.7;
}

.tooltip-wrapper {
  position: relative;
  cursor: help;
}

.tooltip-wrapper::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 130%;
  right: 0;
  width: 220px;
  white-space: normal;
  background: var(--color-text);
  color: white;
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.5;
  padding: 10px 12px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 10;
  pointer-events: none;
}

.tooltip-wrapper:hover::after,
.tooltip-wrapper:focus::after {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.address-image {
  max-width: 100%;
  height: auto;
  margin: 8px 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}