/* Footer компонент
 * BEM методологія: .footer, .footer__content, .footer__grid, .footer__column, тощо
 * 
 * ПРАВИЛА:
 * - НЕ використовувати !important
 * - НЕ дублювати правила з normalize.css
 * - Використовувати CSS variables з base.css
 */

.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  z-index: 1;
}

.footer__content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__column {
  display: flex;
  flex-direction: column;
}

.footer__column-title {
  font-size: var(--font-size-lg);
  font-weight: bold;
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-light);
}

/* Навігація */
.footer__nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__nav-item {
  margin-bottom: var(--spacing-sm);
}

.footer__nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  transition: opacity var(--transition-speed);
}

.footer__nav-link:hover {
  color: var(--color-primary);
}

/* Посилання */
.footer__links-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__links-item {
  margin-bottom: var(--spacing-sm);
}

.footer__link {
  color: var(--color-text-light);
  text-decoration: none;
  transition: opacity var(--transition-speed);
}

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

/* Контакти */
.footer__contacts {
  margin-bottom: var(--spacing-lg);
}

.footer__contact-item {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.footer__contact-item--hours {
  margin-top: var(--spacing-md);
}

.footer__contact-link {
  color: var(--color-text-light);
  text-decoration: none;
  transition: opacity var(--transition-speed);
}

.footer__contact-link:hover {
  color: var(--color-primary);
}

/* Соцмережі */
.footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  text-decoration: none;
  transition: opacity var(--transition-speed);
  width: 32px;
  height: 32px;
}

.footer__social-link:hover {
  opacity: 0.7;
}

.footer__social-link:hover .footer__social-icon {
  color: var(--color-primary);
}

.footer__social-icon {
  width: 24px;
  height: 24px;
  color: var(--color-text-light);
  transition: color var(--transition-speed);
}

.footer__social-text {
  display: none;
}

/* Форма */
.footer__form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer__form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer__form-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: 500;
}

.footer__form-input,
.footer__form-textarea {
  padding: var(--spacing-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  color: var(--color-text-light);
  background-color: rgba(255, 255, 255, 0.1);
}

.footer__form-input:focus,
.footer__form-textarea:focus {
  outline: none;
  border-color: var(--color-text-light);
}

.footer__form-textarea {
  resize: vertical;
  min-height: 80px;
}

.footer__form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.footer__form-checkbox {
  margin-top: 0.2em;
  cursor: pointer;
}

.footer__form-checkbox-text {
  line-height: 1.5;
}

.footer__form-link {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer__form-link:hover {
  color: var(--color-info);
}

.footer__form-submit {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: opacity var(--transition-speed);
}

.footer__form-submit:hover {
  background-color: var(--color-info);
}

.footer__form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.footer__form-result {
  min-height: 1.5em;
  font-size: var(--font-size-sm);
}

.footer__form-success {
  color: var(--color-success);
  padding: var(--spacing-sm);
  background-color: rgba(40, 167, 69, 0.2);
  border-radius: var(--border-radius);
  margin-top: var(--spacing-sm);
}

.footer__form-errors {
  color: var(--color-danger);
  padding: var(--spacing-sm);
  background-color: rgba(220, 53, 69, 0.2);
  border-radius: var(--border-radius);
  margin-top: var(--spacing-sm);
}

.footer__form-errors p {
  margin: var(--spacing-xs) 0;
}

.footer__form-errors p:first-child {
  margin-top: 0;
}

.footer__form-errors p:last-child {
  margin-bottom: 0;
}

/* Акордеони для мобільної версії */
.footer__accordion {
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.05);
  margin-bottom: var(--spacing-md);
}

.footer__accordion-header {
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: opacity var(--transition-speed);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__accordion-header:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
}

.footer__accordion-header:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Desktop: вимкнути pointer events через клас */
.footer__accordion--desktop .footer__accordion-header {
  pointer-events: none;
  cursor: default;
}

.footer__accordion-content {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.3s ease;
}

.footer__accordion[aria-expanded="true"] .footer__accordion-content {
  max-height: 2000px;
  clip-path: inset(0 0 0% 0);
  padding: var(--spacing-md);
}

.footer__text {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: var(--spacing-lg) 0 0 0;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Tablet: 2x2 Grid */
@media (width >= 768px) and (width <= 1023px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    display: grid;
  }

  .footer__form-column {
    order: 0;
  }

  .footer__form-wrapper {
    padding: 0;
  }

  .footer__accordion {
    display: none;
  }

  .footer__accordion-content {
    max-height: none;
    padding: 0;
    overflow: visible;
  }

  .footer__accordion[aria-expanded="true"] .footer__accordion-content {
    max-height: none;
    padding: 0;
  }
}

/* Desktop: 4 колонки, без акордеонів */
@media (width >= 1024px) {
  .footer__grid {
    grid-template-columns: 0.75fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    display: grid;
  }

  .footer__form-column {
    order: 4;
  }

  .footer__column:nth-child(2) {
    order: 1;
  }

  .footer__column:nth-child(3) {
    order: 2;
  }

  .footer__column:nth-child(4) {
    order: 3;
  }

  .footer__form-wrapper {
    padding: 0;
  }

  .footer__accordion {
    border: none;
    background-color: var(--color-bg-dark);
    margin-bottom: 0;
  }

  .footer__accordion-header {
    padding: 0;
    background-color: var(--color-bg-dark);
    cursor: default;
    pointer-events: none;
  }

  .footer__accordion-header:hover {
    background-color: var(--color-bg-dark);
    color: inherit;
  }

  .footer__accordion-header::before {
    display: none;
  }

  .footer__accordion-content {
    max-height: none;
    padding: 0;
    overflow: visible;
  }

  .footer__accordion[aria-expanded="true"] .footer__accordion-content {
    max-height: none;
    padding: 0;
  }
}

/* Mobile: акордеони */
@media (width <= 767px) {
  .footer {
    padding: var(--spacing-md);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 0;
    display: flex;
    flex-direction: column;
  }

  .footer__column {
    margin-bottom: var(--spacing-sm);
  }

  .footer__accordion {
    display: block;
  }

  /* Форма завжди видима, без accordion обгортки */
  .footer__form-column {
    order: -1;
  }

  .footer__form-wrapper {
    padding: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
  }

  .footer__form {
    padding: var(--spacing-md) 0 0 0;
  }

  /* Заголовок форми */
  .footer__form-title {
    font-size: var(--font-size-lg);
    font-weight: bold;
    margin: 0 0 var(--spacing-md) 0;
    color: var(--color-text-light);
  }

  /* Заголовки accordion без фону, без підкреслення, з розділенням */
  .footer__accordion {
    border: none;
    background-color: transparent;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: var(--spacing-sm);
  }

  .footer__accordion-header {
    padding: var(--spacing-sm) 0;
    background-color: transparent;
    border: none;
    text-decoration: none;
    cursor: pointer;
    transition: opacity var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .footer__accordion-header .footer__column-title {
    margin: 0;
    flex: 1;
  }

  .footer__accordion-header:hover {
    background-color: transparent;
    color: var(--color-text-light);
    opacity: 0.8;
  }

  .footer__accordion-header::after {
    content: 'v';
    display: inline-block;
    flex-shrink: 0;
  }

  .footer__accordion-content {
    padding: var(--spacing-sm) 0;
  }

  .footer__accordion[aria-expanded="true"] .footer__accordion-content {
    padding: var(--spacing-sm) 0;
  }
}