/* Icons */
.icon {
  width: 1.25em;
  height: 1.25em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.icon-play,
.icon-pause {
  fill: currentColor;
  stroke: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-decoration: none;
  border: 2px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-accent-warm);
  color: var(--color-accent-warm);
}

.btn-outline:hover {
  background-color: var(--color-terracotta-50);
  border-color: var(--color-accent-warm-hover);
  color: var(--color-accent-warm-hover);
}

.btn-outline.on-dark {
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-outline.on-dark:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  padding: var(--space-2) var(--space-4);
  min-height: 44px;
}

.btn-ghost:hover {
  color: var(--color-primary);
}

.btn-block {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.card-icon-badge .icon {
  width: 28px;
  height: 28px;
}

.card-icon-badge.tint-olive { background-color: var(--color-olive-100); color: var(--color-olive-700); }
.card-icon-badge.tint-terracotta { background-color: var(--color-terracotta-100); color: var(--color-terracotta-700); }
.card-icon-badge.tint-ochre { background-color: var(--color-ochre-100); color: var(--color-ochre-700); }
.card-icon-badge.tint-slate { background-color: var(--color-slate-100); color: var(--color-slate-700); }

.card h3 {
  margin-bottom: var(--space-2);
}

.card p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Step number accent */
.step-number {
  font-family: var(--font-accent);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-3);
}

/* Accordion (FAQ) */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-5);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary h3 {
  font-size: var(--font-size-md);
  font-weight: 600;
}

.faq-item .icon-chevron {
  transition: transform var(--transition-base);
  color: var(--color-primary);
}

.faq-item[open] .icon-chevron {
  transform: rotate(180deg);
}

.faq-item__answer-wrap {
  height: 0;
  overflow: hidden;
  transition: height var(--transition-base);
}

/* Fallback ohne JS: natives [open] blendet die Antwort direkt ein (ohne Animation) */
.faq-item[open] .faq-item__answer-wrap {
  height: auto;
}

.faq-item__answer p {
  padding-bottom: var(--space-5);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 250, 247, 0.85);
  backdrop-filter: blur(8px);
  transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.header-top {
  border-bottom: 1px solid var(--color-border);
}

.header-top .container {
  justify-content: flex-end;
  min-height: auto;
  padding-block: var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand .brand-logo {
  width: 44px;
  height: 44px;
}

.main-nav {
  display: none;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text);
}

.main-nav a:hover {
  color: var(--color-primary);
}

.header-cta {
  display: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  color: var(--color-text);
}

.nav-toggle .icon {
  width: 26px;
  height: 26px;
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5) var(--space-6);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .btn {
  margin-top: var(--space-3);
}

/* Sprachumschalter */
.lang-switch {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  height: 32px;
  padding-inline: var(--space-2);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  background: transparent;
  font-size: 1rem;
  line-height: 1;
  opacity: 0.55;
  transition: opacity var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.lang-btn-label {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.flag-icon {
  width: 20px;
  height: 14px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(30, 35, 33, 0.15);
  flex-shrink: 0;
}

.lang-btn:hover {
  opacity: 0.85;
}

.lang-btn[aria-pressed="true"] {
  opacity: 1;
  border-color: var(--color-primary);
  background-color: var(--color-olive-50);
}

.lang-switch--mobile {
  display: flex;
  gap: var(--space-3);
  padding-block: var(--space-3);
  margin-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-border);
}

.lang-switch--mobile .lang-btn {
  width: auto;
  height: 40px;
  padding-inline: var(--space-3);
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  opacity: 0.7;
}

.lang-switch--mobile .lang-btn[aria-pressed="true"] {
  opacity: 1;
}

@media (min-width: 1024px) {
  .main-nav {
    display: block;
  }

  .lang-switch {
    display: flex;
  }

  .header-cta {
    display: inline-flex;
  }

  .nav-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }
}