/* ==========================================================================
   LAYOUT: Header · Footer · Contacts · Messengers
   Зависит от: design-system.css
   ========================================================================== */

/* ==========================================================================
   1. HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background-color: var(--color-white);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-base);
  will-change: transform;
}

/* Тень + визуальное уменьшение при скролле */
.site-header--sticky {
  border-bottom-color: var(--border-color);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
}

/* Скрыть при скролле вниз */
.site-header--hidden {
  transform: translateY(-100%);
}

/* ── Внутренняя строка ── */
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 72px;
}

/* ── Логотип ── */
.site-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.site-header__logo-img {
  display: block;
  height: 44px;
  width: auto;
}

/* ── Навигация (desktop) ── */
.site-header__nav {
  flex: 1 1 auto;
  display: flex;             /* JS снимает hidden только на wide */
  justify-content: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-header__nav-link {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.01em;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__nav-link:hover,
.site-header__nav-link[aria-current="page"] {
  color: var(--color-primary);
  background-color: var(--color-orange-100);
}

/* ── Правый блок ── */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
  flex-shrink: 0;
}

/* Телефоны */
.site-header__phones {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.site-header__phone {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  white-space: nowrap;
  line-height: 1.2;
  transition: color var(--transition-fast);
}

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

.site-header__phone--secondary {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
}

/* CTA-кнопка */
.site-header__cta {
  padding: 12px 20px;
  font-size: var(--fs-sm);
  min-height: 44px; /* touch target */
  white-space: nowrap;
}

/* ── Бургер ── */
.site-header__burger {
  display: none;             /* показывается только на mobile через медиазапрос */
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  transition: border-color var(--transition-fast);
}

.site-header__burger:hover { border-color: var(--color-primary); }

.site-header__burger-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

/* Превращение бургера в крест */
.site-header__burger--open .site-header__burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header__burger--open .site-header__burger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.site-header__burger--open .site-header__burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Мобильное меню ── */
.site-header__mobile-menu {
  background-color: var(--color-white);
  border-top: 1px solid var(--border-color);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.site-header__mobile-menu--open {
  max-height: 520px;
}

.site-header__mobile-nav {
  padding: var(--space-3) 0;
}

.site-header__mobile-link {
  display: block;
  padding: 16px var(--space-4); /* ≥16px по вертикали — touch target */
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  border-bottom: 1px solid var(--color-gray-50);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__mobile-link:hover {
  color: var(--color-primary);
  background-color: var(--color-orange-100);
}

.site-header__mobile-contacts {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background-color: var(--color-gray-50);
}

.site-header__mobile-phone {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  text-align: center;
}

.site-header__mobile-cta {
  margin-top: var(--space-2);
}

/* ── Адаптив Header ── */
@media (max-width: 992px) {
  .site-header__nav { display: none; }   /* JS управляет через hidden атрибут */
  .site-header__cta { display: none; }
  .site-header__burger { display: flex; }

  .site-header__phone--secondary { display: none; }
}

@media (max-width: 480px) {
  .site-header__inner { height: 60px; }
  .site-header__logo-img { height: 36px; }
  .site-header__phone { font-size: 15px; }
}

/* ==========================================================================
   2. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-black-800);
  color: rgba(255, 255, 255, 0.75);
}

/* ── Верхняя часть ── */
.site-footer__top {
  padding-block: var(--space-8) var(--space-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr;
  gap: var(--space-6);
  align-items: start;
}

/* ── Колонки ── */
.site-footer__col-title {
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Логотип в футере */
.site-footer__logo-link { display: inline-block; }
.site-footer__logo { opacity: 0.9; }

.site-footer__tagline {
  font-size: var(--fs-sm);
  line-height: 1.6;
  margin-block: var(--space-3) var(--space-4);
  color: rgba(255, 255, 255, 0.6);
}

/* Соцсети */
.site-footer__socials {
  display: flex;
  gap: var(--space-2);
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-btn:hover { color: var(--color-white); }
.social-btn--vk:hover  { background-color: #0077FF; }
.social-btn--tg:hover  { background-color: #26A5E4; }
.social-btn--wa:hover  { background-color: #25D366; }

/* Ссылки в nav-колонке */
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__link {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
  line-height: 1.4;
}

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

/* Контактная колонка */
.site-footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.site-footer__contact-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  opacity: 0.8;
}

.site-footer__contact-link {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition-fast);
}

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

.site-footer__address,
.site-footer__contact-item span {
  font-size: var(--fs-sm);
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.65);
  font-style: normal;
}

.site-footer__note { font-size: var(--fs-xs); opacity: 0.6; }

/* Реквизиты */
.site-footer__legal-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__legal-row { display: contents; }

.site-footer__legal-row dt {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.site-footer__legal-row dd {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.5;
  margin-bottom: var(--space-2);
  margin-left: 0;
}

/* ── Нижняя полоска ── */
.site-footer__bottom {
  padding-block: var(--space-4);
}

.site-footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.site-footer__copyright {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.35);
}

.site-footer__legal-nav {
  display: flex;
  gap: var(--space-4);
}

.site-footer__legal-link {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--transition-fast);
}

.site-footer__legal-link:hover { color: rgba(255, 255, 255, 0.75); }

/* ── Адаптив Footer ── */
@media (max-width: 1100px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }
  .site-footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__col--brand { grid-column: auto; }
  .site-footer__bottom-inner { flex-direction: column; text-align: center; }
  .site-footer__legal-nav { justify-content: center; }
}

/* ==========================================================================
   3. СЕКЦИЯ КОНТАКТЫ
   ========================================================================== */
.contacts-section {
  background-color: var(--bg-base);
  overflow: hidden;
}

/* ── Двухколоночный грид ── */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-6);
}

/* ── Телефоны крупно ── */
.contacts-phones {
  margin-bottom: var(--space-5);
}

.contacts-phones__label {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-2);
}

.contacts-phones__main {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: var(--fw-extrabold);
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-1);
  transition: color var(--transition-fast);
}

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

.contacts-phones__secondary {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

/* ── Кнопки мессенджеров ── */
.messenger-btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.messenger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  padding: 12px 20px;
  min-height: 44px; /* touch target */
  border-radius: var(--radius-pill);
  color: var(--color-white);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.messenger-btn:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.1);
}

.messenger-btn--wa    { background-color: #25D366; }
.messenger-btn--tg    { background-color: #26A5E4; }
.messenger-btn--email {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* ── Детали контактов ── */
.contacts-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contacts-details__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.contacts-details__item .icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 3px;
}

.contacts-details__text {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: 1.55;
  font-style: normal;
}

/* ── Карточка формы ── */
.contacts-form-wrap {
  display: flex;
  align-items: flex-start;
}

.contacts-form-card {
  width: 100%;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  border-top: 5px solid var(--color-primary);
}

.contacts-form-card__title {
  font-size: var(--fs-h3);
  margin-bottom: 4px;
}

.contacts-form-card__sub {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

/* Ошибка в поле */
.form-control--error {
  border-color: var(--color-orange-600);
  box-shadow: 0 0 0 3px rgba(230, 92, 0, 0.15);
}

/* Согласие */
.contacts-form__consent {
  margin-bottom: var(--space-4);
}

.contacts-form__consent-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1.5;
}

.contacts-form__checkbox {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.contacts-form__submit {
  margin-top: var(--space-1);
}

/* Сообщение об успехе */
.contacts-form__success {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background-color: #D1FAE5;
  color: #065F46;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
}

/* ── Карта ── */
.contacts-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}

.contacts-map__inner { position: relative; }

.contacts-map__frame {
  display: block;
  width: 100%;
  height: 400px;
  border: none;
  background-color: var(--color-gray-50);
}

.contacts-map__open-link {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  background-color: rgba(0, 0, 0, 0.6);
  padding: 10px 14px;
  min-height: 44px; /* touch target */
  border-radius: var(--radius-pill);
  -webkit-backdrop-filter: blur(4px); /* Safari */
  backdrop-filter: blur(4px);
  transition: background-color var(--transition-fast);
}

.contacts-map__open-link:hover {
  color: var(--color-white);
  background-color: var(--color-primary);
}

/* ── Адаптив Контакты ── */
@media (max-width: 992px) {
  .contacts-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .contacts-phones__main { font-size: 32px; }
  .contacts-map__frame { height: 300px; }
}

@media (max-width: 480px) {
  .contacts-form-card { padding: var(--space-4); }
  .messenger-btns { gap: var(--space-2); flex-direction: column; }
  .messenger-btn { padding: 12px 16px; font-size: var(--fs-sm); width: 100%; justify-content: center; }
  .site-footer__legal-nav { flex-direction: column; align-items: center; gap: var(--space-2); }
}