/* ─── Кнопки ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: var(--btn-height);
  padding-inline: var(--btn-padding-x);
  font-family: var(--font-family);
  font-size: var(--btn-font-size);
  font-weight: var(--fw-semibold);
  line-height: 1;
  border-radius: var(--btn-radius);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  border: 1.5px solid transparent;
}

.btn--primary {
  background-color: var(--color-text-primary);
  color: var(--color-bg);
  border-color: var(--color-text-primary);
}

.btn--primary:hover {
  background-color: #2C2C2C;
  border-color: #2C2C2C;
}

.btn--primary:active {
  background-color: var(--color-text-secondary);
  border-color: var(--color-text-secondary);
}

.btn--secondary {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

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

.btn--secondary:active {
  background-color: var(--color-border);
}

.btn__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

/* ─── FAQ-аккордеон ─── */
.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-top: 0.5px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: 0.5px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding-block: 20px;
  font-family: var(--font-family);
  font-size: 18px;
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-text-secondary);
}

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  font-size: 20px;
  line-height: 1;
  color: var(--color-text-primary);
  user-select: none;
}

.faq-answer {
  padding-bottom: 24px;
  font-size: var(--text-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  color: var(--color-text-secondary);
}

.faq-answer[hidden] {
  display: none;
}

/* ─── Cookies-баннер ─── */
.cookies-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-cookies);
  background-color: var(--color-text-primary);
  color: var(--color-bg);
  padding-block: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.cookies-banner.visible {
  opacity: 1;
  pointer-events: auto;
}

.cookies-banner.fading {
  opacity: 0;
  pointer-events: none;
}

.cookies-banner__inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.cookies-banner__text {
  flex: 1;
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  color: var(--color-bg);
}

.cookies-banner__btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding-inline: 24px;
  font-family: var(--font-family);
  font-size: var(--text-caption);
  font-weight: var(--fw-semibold);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  border: none;
  border-radius: var(--btn-radius);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-fast);
}

.cookies-banner__btn:hover {
  background-color: var(--color-surface);
}

/* ─── Модальное окно ─── */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal[hidden] {
  display: none;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
}

.modal__content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
}

.modal__close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg);
  background: none;
  border: none;
  cursor: pointer;
}

.modal__image {
  display: block;
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-pdf);
  object-fit: contain;
}

/* ─── Lightbox ─── */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox-overlay--visible {
  display: flex;
}

.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-img {
  display: block;
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.25);
}