/* css/components.css — Zentrale UI-Bibliothek. Regulaeres CSS, kein @apply. */

/* === BUTTONS === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--duration-fast), box-shadow var(--duration-fast);
  background-color: var(--color-primary-600);
  color: #fff;
  min-height: 44px;
}
.btn-primary:hover { background-color: var(--color-primary-700); }
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--color-primary-500);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--duration-fast);
  background-color: var(--color-neutral-100);
  color: var(--color-secondary-900);
  min-height: 44px;
}
.btn-secondary:hover { background-color: var(--color-neutral-200); }
.btn-secondary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--color-secondary-700);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration-fast), color var(--duration-fast);
  border: 2px solid var(--color-primary-600);
  color: var(--color-primary-700);
  background: transparent;
  min-height: 44px;
}
.btn-outline:hover { background-color: var(--color-primary-50); }
.btn-outline:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--color-primary-500);
}
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration-fast);
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  background: transparent;
  min-height: 44px;
}
.btn-outline-light:hover { background-color: rgba(255,255,255,0.12); border-color: #fff; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; min-height: 36px; }
.btn-lg { padding: 1.1rem 2.25rem; font-size: 1.125rem; }

/* === FORMULAR-ELEMENTE === */
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-secondary-900);
  margin-bottom: 0.375rem;
}
.form-input, .form-select, textarea.form-input {
  width: 100%;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  padding: 0.65rem 0.85rem;
  color: var(--color-secondary-900);
  background: #fff;
  font-size: 1rem;
  line-height: 1.5;
  font-family: var(--font-body);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.form-input::placeholder { color: #9ca3af; }
.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.168l3.71-3.938a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z' clip-rule='evenodd'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; background-size: 1.1rem; padding-right: 2.5rem; }
.form-group > * + * { margin-top: 0.25rem; }
.form-error { font-size: 0.875rem; color: #b91c1c; margin-top: 0.25rem; display: flex; align-items: center; gap: 0.375rem; }
.form-hint { font-size: 0.8125rem; color: #6b7280; margin-top: 0.25rem; }

/* === CARDS === */
.card {
  background: #fff;
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  border: 1px solid #eef0f2;
  transition: box-shadow var(--duration-base), transform var(--duration-base);
}
.card:hover {
  box-shadow: 0 12px 24px -8px rgba(0,0,0,.12);
  transform: translateY(-2px);
}
.card-body { padding: 1.75rem; }

/* === ALERTS === */
.alert { padding: 1rem 1.25rem; border-radius: 0.5rem; border: 1px solid; display: flex; gap: 0.75rem; align-items: flex-start; }
.alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.alert-error   { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert-info    { background: var(--color-neutral-50); border-color: var(--color-neutral-200); color: var(--color-secondary-900); }

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-primary { background: var(--color-primary-100); color: var(--color-primary-800); }
.badge-accent  { background: var(--color-accent-100); color: var(--color-accent-800); }

/* === SECTION-LAYOUTS === */
.section     { padding: 4rem 1rem; }
.section-alt { padding: 4rem 1rem; background: var(--color-neutral-50); }
.section-dark{ padding: 4rem 1rem; background: var(--color-secondary-900); color: #fff; }
.section-narrow { max-width: 48rem; margin: 0 auto; }
.section-wide   { max-width: 80rem; margin: 0 auto; }
@media (min-width: 768px) {
  .section, .section-alt, .section-dark { padding: 5.5rem 1.5rem; }
}

/* === TYPOGRAPHY HELPERS (Farbe kommt aus Utilities, nicht hier) === */
.subheading { font-size: 1.125rem; }
@media (min-width: 768px) {
  .subheading { font-size: 1.25rem; }
}

/* === ACCORDION / DISCLOSURE === */
.accordion {
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  overflow: hidden;
}
.accordion > * + * { border-top: 1px solid #e5e7eb; }
.accordion-item summary {
  padding: 1.15rem 1.35rem;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background-color var(--duration-fast);
  min-height: 44px;
}
.accordion-item summary:hover { background: var(--color-neutral-50); }
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary::after {
  content: '+';
  font-size: 1.375rem;
  color: var(--color-primary-500);
  flex-shrink: 0;
  transition: transform var(--duration-base);
}
.accordion-item[open] summary::after { content: '\2212'; color: var(--color-primary-600); }
.accordion-item[open] summary { color: var(--color-primary-700); }
.accordion-body { padding: 0 1.35rem 1.35rem; color: #4b5563; line-height: 1.7; }

/* === OPTION-CARDS (Radio/Checkbox als Cards) === */
.option-card {
  display: block;
  border: 2px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 1rem;
  cursor: pointer;
  transition: border-color var(--duration-fast), background-color var(--duration-fast);
}
.option-card:hover { border-color: var(--color-primary-300); background-color: var(--color-primary-50); }
.option-card:has(input:checked) {
  border-color: var(--color-primary-600);
  background-color: var(--color-primary-50);
}
.option-card input[type="radio"],
.option-card input[type="checkbox"] {
  position: absolute;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* === STAT === */
.stat { text-align: center; padding: 1rem; }
.stat-number { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--color-primary-600); }
.stat-label { font-size: 0.875rem; margin-top: 0.25rem; }
@media (min-width: 768px) { .stat-number { font-size: 2.5rem; } }

/* === FEATURE-ITEM === */
.feature-icon {
  width: 3.25rem; height: 3.25rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0.75rem;
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  margin-bottom: 1.25rem;
}
.feature-icon svg { width: 1.75rem; height: 1.75rem; }

/* === CTA-BANNER === */
.cta-banner {
  background: var(--color-primary-600);
  color: #fff;
  border-radius: 1rem;
  padding: 3rem 2rem;
  text-align: center;
}
.cta-banner h2 { font-size: 1.75rem; font-weight: 800; margin-bottom: 1rem; }
.cta-banner p {
  color: var(--color-primary-50);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 768px) {
  .cta-banner { padding: 4.5rem 2.5rem; }
  .cta-banner h2 { font-size: 2.25rem; }
}

/* === BREADCRUMB === */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem; font-size: 0.875rem; color: #6b7280; }
.breadcrumb a { color: #6b7280; text-decoration: none; transition: color var(--duration-fast); }
.breadcrumb a:hover { color: var(--color-primary-600); }
.breadcrumb li { display: flex; align-items: center; list-style: none; }
.breadcrumb li + li::before { content: '/'; margin: 0 0.5rem; color: #d1d5db; }
.breadcrumb [aria-current="page"] { color: var(--color-secondary-900); font-weight: 500; }

/* === STICKY MOBILE CTA === */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  border-top: 1px solid #e5e7eb;
  padding: 0.75rem 1rem;
  gap: 0.75rem;
  z-index: 40;
  box-shadow: 0 -4px 12px rgba(0,0,0,.06);
}
.sticky-cta a { flex: 1; text-align: center; }

/* === MOBILE NAV === */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform var(--duration-base) var(--ease-out), visibility 0s linear var(--duration-base);
}
.mobile-nav.is-open {
  transform: translateX(0);
  visibility: visible;
  transition: transform var(--duration-base) var(--ease-out), visibility 0s linear 0s;
}
.mobile-nav a {
  font-size: 1.25rem;
  font-weight: 600;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-neutral-100);
  color: var(--color-secondary-900);
  text-decoration: none;
}
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-secondary-900);
}