/*
 * Wiederverwendbare, domain-unabhängige UI-Bausteine.
 * Domain-CSS-Dateien sollen diese Klassen verwenden statt eigene
 * Buttons/Inputs neu zu erfinden.
 */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px var(--space-4);
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: background 0.12s ease;
}

/* Ohne diese Regel würde `.btn { display: inline-flex }` das
   [hidden]-Attribut der UA-Stylesheet-Regel überstimmen, sodass
   versteckte Buttons trotz `hidden` weiterhin (ausgegraut) sichtbar
   blieben statt komplett zu verschwinden. */
.btn[hidden] {
  display: none;
}

.btn--primary {
  background: var(--brand);
  color: var(--text-on-brand);
}

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

.btn--danger {
  background: transparent;
  color: var(--danger);
}

.btn--danger:hover {
  background: rgba(218, 55, 60, 0.15);
}

.btn--secondary {
  background: var(--bg-modifier-hover);
  color: var(--text-normal);
}

.btn--secondary:hover {
  background: var(--border-strong);
}

.btn--icon {
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
}

.btn--icon:hover {
  background: var(--bg-modifier-hover);
  color: var(--text-normal);
}

.gift-favorite-btn {
  color: var(--text-muted);
}

.gift-favorite-btn.is-favorite {
  color: var(--warning);
}

.gift-favorite-btn:hover {
  color: var(--warning);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form-Felder */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.field__label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.field__hint {
  font-size: 12px;
  color: var(--text-muted);
}

.field-row {
  display: flex;
  gap: var(--space-3);
}

.field-row > .field {
  flex: 1;
  min-width: 0;
}

.input,
.select,
.textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px var(--space-3);
  color: var(--text-normal);
  outline: none;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--brand);
}

.textarea {
  resize: vertical;
  min-height: 64px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-normal);
}

.checkbox-field input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--brand);
}

/* Suche */
.search-input-wrap {
  position: relative;
  max-width: 320px;
}

.search-input-wrap .input {
  padding-left: 34px;
}

.search-input-wrap__icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Karten */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border: 1px solid var(--border-subtle);
}

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2);
}

.card__title {
  color: var(--text-bright);
  font-weight: 700;
  font-size: var(--font-size-md);
}

.card__subtitle {
  color: var(--text-muted);
  font-size: 12px;
  font-style: italic;
}

.card__actions {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--text-normal);
}

.card__row {
  display: flex;
  gap: var(--space-1);
}

.card__row-label {
  color: var(--text-muted);
  flex-shrink: 0;
}

.card__footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: auto;
  padding-top: var(--space-2);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background: var(--bg-modifier-hover);
  color: var(--text-normal);
}

.badge--danger {
  background: rgba(218, 55, 60, 0.18);
  color: #ff8a8d;
}

.badge--success {
  background: rgba(35, 165, 90, 0.18);
  color: #55d485;
}

.badge--muted {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.badge--brand {
  background: rgba(88, 101, 242, 0.2);
  color: #9aa5ff;
}

/* Leerzustand */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-6);
  color: var(--text-muted);
  text-align: center;
}

.empty-state__icon {
  font-size: 40px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-modal);
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--bg-floating);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-elevation-high);
  overflow: hidden;
}

.modal form {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}

.modal__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-bright);
}

.modal__body {
  padding: var(--space-5);
  overflow-y: auto;
  overscroll-behavior: contain;
  min-height: 0;
  flex: 1;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-subtle);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-toast);
}

.toast {
  background: var(--bg-floating);
  color: var(--text-normal);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation-high);
  border-left: 3px solid var(--brand);
  font-size: var(--font-size-sm);
  animation: toast-in 0.15s ease-out;
}

.toast--success {
  border-left-color: var(--success);
}

.toast--error {
  border-left-color: var(--danger);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile: Modal vollflächig, Formularzeilen gestapelt, Karten einspaltig */
@media (max-width: 768px) {
  .modal-overlay {
    padding: 0;
  }

  .modal {
    max-width: 100%;
    max-height: 100dvh;
    height: 100%;
    border-radius: 0;
  }

  .modal__header {
    padding-top: calc(var(--space-4) + env(safe-area-inset-top));
  }

  .modal__footer {
    padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
  }

  .modal__header,
  .modal__body,
  .modal__footer {
    padding-left: calc(var(--space-3) + env(safe-area-inset-left));
    padding-right: calc(var(--space-3) + env(safe-area-inset-right));
  }

  /* Der Speichern-Button soll auf dem Handy die volle Breite nutzen */
  .modal__footer .btn {
    flex: 1;
  }

  .field-row {
    flex-direction: column;
    gap: 0;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .search-input-wrap {
    max-width: none;
    width: 100%;
  }

  /* iOS zoomt beim Fokussieren automatisch hinein, wenn die Schrift
     eines Eingabefelds kleiner als 16px ist. */
  .input,
  .select,
  .textarea {
    font-size: 16px;
    padding: 12px var(--space-3);
  }

  .search-input-wrap .input {
    padding-left: 36px;
  }

  /* Komfortable Touch-Ziele (Apple empfiehlt mind. 44x44px) */
  .btn {
    min-height: 44px;
  }

  .btn--icon {
    min-width: 40px;
    min-height: 40px;
  }

  .checkbox-field {
    min-height: 44px;
  }

  .checkbox-field input[type="checkbox"] {
    width: 22px;
    height: 22px;
  }

  .toast-container {
    left: var(--space-3);
    right: var(--space-3);
    bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
  }

  .toast {
    width: 100%;
  }
}

/* Struktur-Zoom-Modal (vergrößerte Ansicht chemischer Strukturbilder) */
.structure-zoom-overlay {
  z-index: var(--z-zoom);
}

.structure-zoom-modal {
  position: relative;
  background: var(--bg-floating);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-elevation-high);
  max-width: 90vw;
  max-height: 90vh;
}

.structure-zoom-modal__close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
}

.structure-zoom-modal__img {
  width: min(70vw, 480px);
  height: min(70vw, 480px);
  object-fit: contain;
  background: #ffffff;
  border-radius: var(--radius-sm);
}

.structure-zoom-modal__caption {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 768px) {
  .structure-zoom-modal {
    max-width: calc(100vw - var(--space-4));
    margin-top: env(safe-area-inset-top);
  }

  .structure-zoom-modal__img {
    width: min(80vw, 320px);
    height: min(80vw, 320px);
  }
}

/* PIN-Eingabe-Modal (Bearbeiten freischalten) */
.edit-lock-modal {
  max-width: 360px;
}

.edit-lock-modal__hint {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.edit-lock-modal__error {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--danger);
}

.edit-lock-modal__error[hidden] {
  display: none;
}