/* ==========================================================================
   Родная вода — Hero (full-bleed)
   Фон на весь экран, навигация оверлеем сверху, белый текст.
   ========================================================================== */

.hero {
  position: fixed;
  inset: 0;
  z-index: 0;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  color: #FFFFFF;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url('../assets/herobg.png?v=3');
  background-size: cover;
  background-position: right top;
  transform: scale(1.15);
  animation: hero-zoom-out 2.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes hero-zoom-out {
  from {
    transform: scale(1.15);
  }
  to {
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg {
    animation: none;
    transform: scale(1);
  }
}

/* --- Навигация оверлеем --- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  background: transparent;
  transition: background var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease);
}

.site-header.is-solid {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.hero__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo__img {
  display: block;
  height: 50px;
  width: auto;
}

.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

.site-nav a {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.85);
}

.site-nav a:hover {
  color: #FFFFFF;
}

.site-header.is-solid .site-nav a {
  color: var(--color-text-muted);
}

.site-header.is-solid .site-nav a:hover {
  color: var(--color-text);
}

@media (min-width: 900px) {
  .site-nav {
    display: flex;
  }
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.social-links {
  display: none;
  align-items: center;
  gap: var(--space-2);
}

@media (min-width: 480px) {
  .social-links {
    display: flex;
  }
}

.site-header__phone {
  display: none;
}

@media (min-width: 480px) {
  .site-header__phone {
    display: inline-flex;
  }
}

.social-btn--light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
  color: #FFFFFF;
}

.social-btn--light:hover {
  border-color: #FFFFFF;
  background: rgba(255, 255, 255, 0.14);
  color: #FFFFFF;
}

.site-header.is-solid .social-btn--light {
  border-color: var(--color-border);
  color: var(--color-text-muted);
}

.site-header.is-solid .social-btn--light:hover {
  border-color: var(--color-brand-300);
  background: var(--color-brand-100);
  color: var(--color-brand-700);
}

.site-header.is-solid .site-header__phone {
  color: var(--color-brand-700);
  border-color: var(--color-border);
}

.site-header.is-solid .site-header__phone:hover {
  border-color: var(--color-brand-300);
  background: var(--color-brand-100);
}

/* --- Кнопка мобильного меню --- */

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-full);
  background: transparent;
  position: relative;
  z-index: 3001;
}

.menu-toggle__box {
  position: relative;
  width: 18px;
  height: 12px;
}

.menu-toggle__line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 1px;
  background: #FFFFFF;
  transition: transform var(--duration-base) var(--ease), opacity var(--duration-base) var(--ease), top var(--duration-base) var(--ease);
}

.menu-toggle__line:nth-child(1) { top: 0; }
.menu-toggle__line:nth-child(2) { top: 5px; }
.menu-toggle__line:nth-child(3) { top: 10px; }

.menu-toggle.is-active .menu-toggle__line:nth-child(1) {
  top: 5px;
  transform: rotate(45deg);
}

.menu-toggle.is-active .menu-toggle__line:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active .menu-toggle__line:nth-child(3) {
  top: 5px;
  transform: rotate(-45deg);
}

@media (min-width: 900px) {
  .menu-toggle {
    display: none;
  }
}

.site-header.is-solid .menu-toggle {
  border-color: var(--color-border);
}

.site-header.is-solid .menu-toggle__line {
  background: var(--color-text);
}

/* --- Мобильное меню --- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  background: var(--color-brand-700);
  padding: var(--space-5) var(--gutter) var(--space-7);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  overflow-y: auto;
  transition: transform var(--duration-base) var(--ease), opacity var(--duration-base) var(--ease), visibility var(--duration-base);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
}

.mobile-menu__nav a {
  padding: var(--space-4) 0;
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: #FFFFFF;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-7);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
}

.mobile-menu__footer .btn {
  width: 100%;
}

.mobile-menu__phone {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: #FFFFFF;
}

.mobile-menu__socials {
  display: flex;
  gap: var(--space-3);
}

@media (min-width: 900px) {
  .mobile-menu {
    display: none;
  }
}

body.mobile-menu-open {
  overflow: hidden;
}

/* --- Контент --- */

.hero__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-7);
  padding-top: calc(var(--site-header-h, 88px) + var(--space-6));
  padding-bottom: var(--space-7);
}

.hero__main {
  max-width: 620px;
}

.hero__title {
  color: #FFFFFF;
  font-size: clamp(2.75rem, 2.2rem + 2.6vw, 4.5rem);
  line-height: 1.05;
  margin-bottom: var(--space-4);
}

.hero__lead {
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-6);
  max-width: 420px;
}

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.hero__quantity {
  gap: 0;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  padding: var(--space-1);
  box-shadow: var(--shadow-md);
}

.hero__quantity .stepper__btn {
  width: 44px;
  height: 50px;
  border: none;
  font-size: var(--fs-xl);
}

.hero__quantity .stepper__value {
  width: 38px;
  height: 50px;
  border: none;
  font-size: var(--fs-lg);
}

.hero__order-btn {
  flex: 0 0 auto;
}

@media (max-width: 479px) {
  .hero__quantity {
    flex: 0 0 auto;
  }

  .hero__order-btn {
    flex: 1 1 auto;
  }
}

/* --- Плашки доверия (жидкое стекло) --- */

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-2);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 4px 16px rgba(8, 20, 42, 0.12);
}

.hero__trust-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-md);
}

.hero__trust-text {
  font-size: var(--fs-xs);
  color: #FFFFFF;
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

@media (max-width: 639px) {
  .hero__bg {
    background-image: url('../assets/herobg-mobile.png');
    background-size: 170%;
    background-position: 75% top;
  }

  .hero__trust {
    flex-wrap: nowrap;
    gap: var(--space-2);
  }

  .hero__trust-item {
    flex: 1 1 0;
    min-width: 0;
    gap: var(--space-2);
    padding: var(--space-2);
  }

  .hero__trust-icon {
    width: 32px;
    height: 32px;
    font-size: var(--fs-sm);
  }

  .hero__trust-text {
    font-size: 11px;
    line-height: 1.25;
  }
}

@media (min-width: 960px) {
  .hero__title {
    white-space: nowrap;
  }
}