/* ================
   STYLE.CSS
   Фанерный завод, Иркутск
   Промышленный минимализм, B2B-стиль
   Адаптив: Desktop → Tablet → Mobile
================ */

/* ----- Переменные и сброс ----- */
:root {
  /* Основная палитра */
  --color-green-dark: #0f2c22; /* Премиальный темно-зеленый (хвоя) */
  --color-green-primary: #1a3e2f; /* Фирменный зеленый */
  --color-green-light: #2a5a45; /* Для акцентов */
  --color-gray-dark: #2d2d2d; /* Текст */
  --color-gray: #5a5a5a; /* Вторичный текст */
  --color-gray-light: #e9ecef; /* Фоны, бордеры */
  --color-white: #ffffff;
  --color-accent: #e67e22; /* Оранжевый (кнопки, акценты) */
  --color-accent-hover: #cf6c17;
  --color-bg-light: #f8f9fa;

  /* Типографика */
  --font-main:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;

  /* Контейнер */
  --container-width: 1320px;
  --container-padding: 20px;

  /* Тени */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 28px rgba(26, 62, 47, 0.12);

  /* Радиусы */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Транзишены */
  --transition: 0.25s ease;
}

/* Сброс */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: var(--line-height-base);
  color: var(--color-gray-dark);
  background-color: var(--color-white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

ul,
ol {
  list-style: none;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ----- Контейнер ----- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

/* ----- Типографика ----- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-green-dark);
}

.section-title {
  font-size: 2.25rem; /* 36px */
  font-weight: 800;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
  color: var(--color-green-dark);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  background: var(--color-accent);
  margin-top: 12px;
  border-radius: 2px;
}

/* ----- Кнопки ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  gap: 0.5rem;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  border: 2px solid var(--color-green-primary);
  color: var(--color-green-primary);
}

.btn--outline:hover {
  background-color: var(--color-green-primary);
  color: var(--color-white);
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.btn--download {
  border-color: var(--color-gray-light);
  color: var(--color-gray-dark);
}

.btn--download:hover {
  border-color: var(--color-green-primary);
  background-color: var(--color-green-primary);
  color: var(--color-white);
}

/* ----- Бейджи ----- */
.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: rgba(26, 62, 47, 0.08);
  color: var(--color-green-dark);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 40px;
  backdrop-filter: blur(4px);
}

/* ================
   HEADER 
================ */
.header {
  position: sticky;
  top: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  border-bottom: 1px solid var(--color-gray-light);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

/* Логотип */
.logo {
  display: flex;
  flex-direction: column;
}

.logo__slogan {
  font-size: 0.75rem;
  color: var(--color-gray);
  margin-top: 4px;
  font-weight: 400;
  letter-spacing: 0.5px;
}

/* Навигация */
.nav__list {
  display: flex;
  gap: 2.25rem;
}

.nav__link {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-gray-dark);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition);
}

.nav__link:hover::after {
  width: 100%;
}

/* Контакты в шапке */
.header__contacts {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header__phone {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-green-dark);
}

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

/* Бургер */
.burger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 100;
}

.burger__line {
  width: 100%;
  height: 3px;
  background-color: var(--color-green-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.burger.active .burger__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger.active .burger__line:nth-child(2) {
  opacity: 0;
}

.burger.active .burger__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Мобильное меню */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--color-white);
  padding: 100px 30px 40px;
  box-shadow: var(--shadow-md);
  transition: right var(--transition);
  z-index: 99;
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-menu__list a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-gray-dark);
  display: block;
  padding: 0.5rem 0;
}

.mobile-phone {
  font-size: 1.25rem !important;
  color: var(--color-green-primary) !important;
  margin-top: 1rem;
}



.header__messenger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-light);
    border-radius: 50%;
    transition: all 0.3s ease;
}



.messenger-img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    transition: 0.3s;
}

.header__messenger:hover .messenger-img {
    transform: scale(1.07);
}

.header__mobile-actions {
    display: none;
    align-items: center;
    gap: 1.25rem;
}

@media (max-width: 991px) {
    .header__mobile-actions {
        display: flex;
    }

    .burger {
        display: flex;
    }
    
    .desktop-messenger {
        display: none;
    }
}

/* ================
   HERO 
================ */
.hero {
  background:
    linear-gradient(
      105deg,
      rgba(15, 44, 34, 0.92) 0%,
      rgba(15, 44, 34, 0.85) 100%
    ),
    url("../img/hero-plant.jpg") center/cover no-repeat;
  color: var(--color-white);
  padding: 5rem 0 6rem;
  position: relative;
}

.hero__content {
  max-width: 850px;
}

.hero__title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.hero__title-accent {
  color: var(--color-accent);
  position: relative;
  display: inline-block;
}

.hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

/* Калькулятор */
.hero__calc {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
}

.calc-form__row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-content: flex-start;
}

.calc-form__select,
.calc-form__input {
  flex: 1 1 auto;
  min-width: 180px;
  padding: 0.875rem 1.25rem;
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--color-gray-dark);
  border: 2px solid transparent;
  transition: var(--transition);
}

.calc-form__select:focus,
.calc-form__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.2);
}

.calc-form__btn {
  flex: 0 0 auto;
  padding: 0.875rem 2rem;
  font-weight: 700;
}

.calc-form__hint {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 1rem;
  padding-left: 0.5rem;
}

.hero__badges {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero__badges .badge {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  backdrop-filter: blur(4px);
}

.calc-form__contacts {
    display: none;
    margin-top: 1rem;
    animation: fadeInStep 0.3s ease forwards;
}

.calc-form__contacts.is-visible {
    display: flex;
}

@keyframes fadeInStep {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* ================
   ADVANTAGES 
================ */
.advantages {
  padding: 5rem 0;
  background-color: var(--color-white);
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.advantage-card {
  padding: 2rem 1.5rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  text-align: center;
}

.advantage-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: transparent;
  transform: translateY(-5px);
}

.advantage-card__icon {
  width: 80px;
  height: 80px;
  background-color: rgba(26, 62, 47, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.advantage-card__title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-green-dark);
}

.advantage-card__text {
  color: var(--color-gray);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ================
   CATALOG 
================ */
.catalog {
  padding: 5rem 0;
  background-color: var(--color-bg-light);
}

.catalog__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
}

.catalog__all-link {
  font-weight: 600;
  color: var(--color-green-primary);
  border-bottom: 2px solid transparent;
  padding-bottom: 0.25rem;
}

.catalog__all-link:hover {
  border-bottom-color: var(--color-accent);
  color: var(--color-accent);
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--color-gray-light);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: transparent;
  transform: translateY(-4px);
}

.product-card__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 0.25rem 0.75rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-card__img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  margin-bottom: 1.25rem;
}

.product-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-green-dark);
}

.product-card__desc {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: 1rem;
  line-height: 1.5;
  flex-grow: 1;
}

.product-card__prices {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.25rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-gray-light);
}

.product-card__price {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-green-dark);
}

.product-card__price-m3 {
  font-size: 0.8125rem;
  color: var(--color-gray);
}

.product-card__btn {
  width: 100%;
  padding: 0.75rem;
  font-size: 0.9375rem;
}

.catalog__price-download {
  margin-top: 3rem;
  text-align: center;
}

/* ================
   WHOLESALE 
================ */
.wholesale {
  padding: 5rem 0;
  background-color: var(--color-white);
}

.wholesale__wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.wholesale__list {
  margin: 2rem 0 2.5rem;
}

.wholesale__list li {
  margin-bottom: 1rem;
  font-size: 1.0625rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gray-dark);
}

/* Блок остатков */
.stock-block {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--color-gray-light);
}

.stock-block__title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--color-green-dark);
}

.stock-block__total {
  background: linear-gradient(
    135deg,
    var(--color-green-dark),
    var(--color-green-primary)
  );
  color: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  text-align: center;
}

.stock-block__total-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stock-block__total-label {
  font-size: 0.9375rem;
  opacity: 0.9;
}

.stock-block__table {
  margin-bottom: 1rem;
}

.stock-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
}

.stock-row:last-child {
  border-bottom: none;
}

.stock-row span:first-child {
  font-weight: 600;
  color: var(--color-gray-dark);
}

.stock-row span:last-child {
  font-weight: 700;
  color: var(--color-green-primary);
}

.stock-block__update {
  font-size: 0.75rem;
  color: var(--color-gray);
  text-align: right;
  margin-top: 1rem;
}

/* ================
   DELIVERY 
================ */
.delivery {
  padding: 5rem 0;
  background-color: var(--color-bg-light);
}

.delivery__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.delivery__map {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-light);
}

.delivery__map-img {
  width: 100%;
  border-radius: var(--radius-sm);
}

.delivery__info {
  display: grid;
  gap: 1.5rem;
}

.delivery__item {
  padding: 1.25rem;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 6px solid var(--color-accent);
}

.delivery__city {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-green-dark);
}

.delivery__note {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: rgba(26, 62, 47, 0.05);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
}

/* ================
   ABOUT 
================ */
.about {
  padding: 5rem 0;
  background-color: var(--color-white);
}

.about__wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about .section-title {
  margin-bottom: 2rem;
}

.about__text {
  margin-bottom: 1rem;
  color: var(--color-gray);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.about__text:last-of-type {
  margin-bottom: 0;
}

.about__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.about__feature {
  text-align: center;
  padding: 1.5rem 1rem;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.about__feature-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.about__slider {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.about__slider img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.about__slider img:first-child {
  grid-column: 1 / -1;
  height: 260px;
}

.about__slider img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

@media (max-width: 991px) {
  .about {
    padding: 4rem 0;
  }

  .about__wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 576px) {
  .about {
    padding: 3rem 0;
  }

  .about__features {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about__slider {
    gap: 1rem;
  }

  .about__slider img:first-child {
    height: 200px;
  }

  .about__slider img {
    height: 150px;
  }
}

/* ================
   CONTACTS 
================ */
.contacts {
  padding: 5rem 0;
  background: linear-gradient(
    to right,
    var(--color-green-dark) 0%,
    var(--color-green-primary) 100%
  );
  color: var(--color-white);
}

.contacts .section-title {
  color: var(--color-white);
}

.contacts .section-title::after {
  background-color: var(--color-white);
}

.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contacts__item h4 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
  opacity: 0.9;
}

.contacts__item p,
.contacts__item a {
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

.contacts__item a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.contacts__social {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
}

.social-link {
  padding: 0.5rem 1rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 40px;
  color: var(--color-white);
  font-weight: 500;
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

.contacts__form {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.contacts__form h3 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.contacts__form input,
.contacts__form textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  background-color: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  color: var(--color-gray-dark);
}

.contacts__form input:focus,
.contacts__form textarea:focus {
  border-color: var(--color-accent);
}

.contacts__form textarea {
  min-height: 120px;
  resize: vertical;
}

.contacts__form .btn {
  width: 100%;
  margin-top: 0.5rem;
}

.form__agreement {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 1rem;
  text-align: center;
}

/* ================
   FOOTER 
================ */
.footer {
  background-color: var(--color-gray-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 2rem;
}

.footer__row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__logo {
  margin-bottom: 1rem;
  filter: brightness(0) invert(1);
}

.footer__col h4 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
  font-size: 1.125rem;
}

.footer__col ul li {
  margin-bottom: 0.75rem;
}

.footer__col ul a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer__col ul a:hover {
  color: var(--color-white);
  padding-left: 5px;
}

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ================
   АДАПТИВ (MEDIA QUERIES)
================ */

/* Large Desktop (меньше 1400px) */
@media (max-width: 1400px) {
  .container {
    max-width: 1140px;
  }

  .hero__title {
    font-size: 3rem;
  }
}

/* Desktop средний (меньше 1200px) */
@media (max-width: 1200px) {
  :root {
    --container-padding: 30px;
  }

  .hero__title {
    font-size: 2.75rem;
  }

  .catalog__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .advantages__grid {
    gap: 1.5rem;
  }
}

@media (max-width: 1024px) {
  .header__nav,
  .header__contacts .btn--outline {
    display: none;
  }

  .burger {
    display: flex;
  }

  .header__contacts {
    margin-left: auto;
    margin-right: 1rem;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .advantages__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .wholesale__wrapper,
  .delivery__grid,
  .about__wrapper,
  .contacts__grid,
  .footer__row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about__gallery {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
  }

  .section-title {
    font-size: 1.875rem;
  }

  .hero {
    padding: 3rem 0;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1.125rem;
  }

  .calc-form__row {
    flex-direction: column;
  }

  .calc-form__select,
  .calc-form__input,
  .calc-form__btn {
    width: 100%;
  }

  .hero__badges {
    flex-direction: column;
    gap: 0.75rem;
  }

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

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

  .catalog__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

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

  .footer__row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .stock-block__total-number {
    font-size: 2rem;
  }
}

/* Mobile (480px и ниже) */
@media (max-width: 480px) {
  .header__container {
    height: 70px;
  }

  .logo img {
    width: 140px;
  }

  .logo__slogan {
    font-size: 0.625rem;
  }

  .header__phone {
    font-size: 0.875rem;
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }

  .btn--large {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }

  .advantage-card {
    padding: 1.5rem 1rem;
  }

  .product-card__prices {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .contacts__form {
    padding: 1.5rem;
  }
}

/* ================
   ВСПОМОГАТЕЛЬНЫЕ КЛАССЫ
================ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
}

.text-center {
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}
.mb-0 {
  margin-bottom: 0;
}
.mt-1 {
  margin-top: 1rem;
}
.mb-1 {
  margin-bottom: 1rem;
}
.mt-2 {
  margin-top: 2rem;
}
.mb-2 {
  margin-bottom: 2rem;
}
.mt-3 {
  margin-top: 3rem;
}
.mb-3 {
  margin-bottom: 3rem;
}

/*// product.js - для функциональности страницы товара

document.addEventListener('DOMContentLoaded', function() {
    // Переключение миниатюр в галерее
    const thumbnails = document.querySelectorAll('.thumbnail');
    const mainImage = document.getElementById('main-image');
    
    if (thumbnails.length && mainImage) {
        thumbnails.forEach(thumb => {
            thumb.addEventListener('click', function() {
                // Убираем активный класс у всех
                thumbnails.forEach(t => t.classList.remove('active'));
                // Добавляем активный класс текущему
                this.classList.add('active');
                // Меняем главное изображение
                const fullSrc = this.dataset.full;
                if (fullSrc) {
                    mainImage.src = fullSrc;
                }
            });
        });
    }
    
    / Количество товара
    const minusBtn = document.querySelector('.quantity__minus');
    const plusBtn = document.querySelector('.quantity__plus');
    const quantityInput = document.querySelector('.quantity__input');
    
    if (minusBtn && plusBtn && quantityInput) {
        const min = parseInt(quantityInput.min) || 1;
        const max = parseInt(quantityInput.max) || 10000;
        
        minusBtn.addEventListener('click', () => {
            let val = parseInt(quantityInput.value) || min;
            if (val > min) {
                quantityInput.value = val - 1;
            }
        });
        
        plusBtn.addEventListener('click', () => {
            let val = parseInt(quantityInput.value) || min;
            if (val < max) {
                quantityInput.value = val + 1;
            }
        });
        
        quantityInput.addEventListener('change', function() {
            let val = parseInt(this.value);
            if (isNaN(val) || val < min) this.value = min;
            if (val > max) this.value = max;
        });
    }
    
    // Переключение табов
    const tabsBtns = document.querySelectorAll('.tabs__btn');
    const tabsPanes = document.querySelectorAll('.tabs__pane');
    
    tabsBtns.forEach(btn => {
        btn.addEventListener('click', function() {
            const tabId = this.dataset.tab;
            
            tabsBtns.forEach(b => b.classList.remove('active'));
            tabsPanes.forEach(p => p.classList.remove('active'));
            
            this.classList.add('active');
            document.getElementById(tabId)?.classList.add('active');
        });
    });
    
    // Выбор первого таба по умолчанию (если активного нет)
    if (!document.querySelector('.tabs__btn.active')) {
        const firstTab = tabsBtns[0];
        if (firstTab) {
            firstTab.classList.add('active');
            const firstPaneId = firstTab.dataset.tab;
            document.getElementById(firstPaneId)?.classList.add('active');
        }
    }
});*/
/* ================
   PRODUCT.CSS
   Дополнительные стили для страницы товара
================ */

/* Хлебные крошки */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  padding: 1rem 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--color-gray);
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin: 0 0.5rem;
  color: var(--color-gray-light);
}

.breadcrumbs a {
  color: var(--color-gray);
  transition: color var(--transition);
}

.breadcrumbs a:hover {
  color: var(--color-green-primary);
}

.breadcrumbs span {
  color: var(--color-green-dark);
  font-weight: 500;
}

/* Страница товара */
.product {
  padding: 2rem 0 5rem;
}

.product__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

/* Галерея */
.product__gallery {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gallery-main {
  width: 100%;
  aspect-ratio: 1/1;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-gray-light);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-thumbnails {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.thumbnail {
  aspect-ratio: 1/1;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  object-fit: cover;
}

.thumbnail:hover {
  border-color: var(--color-accent);
  opacity: 0.9;
}

.thumbnail.active {
  border-color: var(--color-green-primary);
}

/* Информация о товаре */
.product__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--color-green-dark);
}

.product__rating {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.stars {
  display: flex;
  gap: 0.25rem;
}

.star {
  font-size: 1.25rem;
  color: #d4d4d4;
}

.star.filled {
  color: #f5b342;
}

.reviews-link a {
  color: var(--color-gray);
  text-decoration: underline;
  font-size: 0.875rem;
}

.reviews-link a:hover {
  color: var(--color-accent);
}

.product__sku {
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-gray);
}

.product__availability {
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.in-stock span {
  color: #2e7d32;
  background-color: #e8f5e9;
  padding: 0.25rem 1rem;
  border-radius: 30px;
  font-size: 0.875rem;
}

.out-of-stock span {
  color: #c62828;
  background-color: #ffebee;
  padding: 0.25rem 1rem;
  border-radius: 30px;
}

/* Цены */
.product__price-block {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--color-gray-light);
}

.price-table {
  margin-bottom: 1rem;
}

.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
}

.price-row:last-child {
  border-bottom: none;
}

.price-row span:first-child {
  font-weight: 500;
  color: var(--color-gray-dark);
}

.price {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-green-dark);
}

.price-m3 {
  font-size: 0.9375rem;
  color: var(--color-gray);
  border-top: 2px solid var(--color-gray-light);
  padding-top: 1rem;
  text-align: right;
}

/* Форма заказа */
.product__order {
  margin-bottom: 2rem;
}

.quantity {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.quantity__btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-light);
  background-color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-green-dark);
  cursor: pointer;
  transition: var(--transition);
}

.quantity__btn:hover {
  background-color: var(--color-green-primary);
  color: white;
  border-color: var(--color-green-primary);
}

.quantity__input {
  width: 80px;
  height: 40px;
  text-align: center;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.quantity__input::-webkit-outer-spin-button,
.quantity__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.quantity__unit {
  font-size: 0.9375rem;
  color: var(--color-gray);
  margin-left: 0.25rem;
}

.product__add-btn {
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 1rem;
}

.product__one-click {
  width: 100%;
}

/* Метаданные */
.product__meta {
  margin: 1.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--color-gray-light);
  border-bottom: 1px solid var(--color-gray-light);
  font-size: 0.9375rem;
  color: var(--color-gray);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product__meta span {
  font-weight: 600;
  color: var(--color-gray-dark);
  margin-right: 0.5rem;
}

.product__actions {
  display: flex;
  gap: 1rem;
}

.action-btn {
  background: none;
  border: none;
  color: var(--color-gray);
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: color var(--transition);
  padding: 0.5rem 0;
}

.action-btn:hover {
  color: var(--color-accent);
}

.action-btn span {
  font-size: 1.125rem;
}

/* Табы */
.product-tabs {
  margin-top: 3rem;
}

.tabs__nav {
  display: flex;
  border-bottom: 2px solid var(--color-gray-light);
  gap: 2rem;
  overflow-x: auto;
  white-space: nowrap;
  padding-bottom: 0.5rem;
}

.tabs__btn {
  background: none;
  border: none;
  padding: 0.75rem 0.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-gray);
  cursor: pointer;
  position: relative;
  transition: color var(--transition);
}

.tabs__btn::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-accent);
  transition: width var(--transition);
}

.tabs__btn.active {
  color: var(--color-green-dark);
}

.tabs__btn.active::after {
  width: 100%;
}

.tabs__pane {
  display: none;
  padding: 2rem 0;
}

.tabs__pane.active {
  display: block;
}

.tabs__pane h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.tabs__pane ul,
.tabs__pane p {
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.tabs__pane li {
  margin-bottom: 0.5rem;
  list-style: disc;
  margin-left: 1.5rem;
}

/* Таблица характеристик */
.chars-table {
  width: 100%;
  border-collapse: collapse;
}

.chars-table th {
  text-align: left;
  padding: 0.75rem;
  background-color: var(--color-bg-light);
  font-weight: 600;
  color: var(--color-green-dark);
  border: 1px solid var(--color-gray-light);
}

.chars-table td {
  padding: 0.75rem;
  border: 1px solid var(--color-gray-light);
  color: var(--color-gray);
}

/* Отзывы */
.reviews-list {
  margin-bottom: 2rem;
}

.review {
  padding: 1.5rem;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.review__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.review__author {
  font-weight: 700;
  color: var(--color-green-dark);
}

.review__date {
  font-size: 0.8125rem;
  color: var(--color-gray);
}

.review__stars {
  color: #f5b342;
}

.review__text {
  color: var(--color-gray);
  line-height: 1.6;
}

/* Похожие товары */
.similar-products {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-gray-light);
}

.similar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

/* Адаптив */
@media (max-width: 1024px) {
  .product__grid {
    gap: 2rem;
  }

  .similar__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .product__grid {
    grid-template-columns: 1fr;
  }

  .gallery-thumbnails {
    grid-template-columns: repeat(4, 1fr);
  }

  .tabs__nav {
    gap: 1rem;
  }

  .product__actions {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .product__title {
    font-size: 1.5rem;
  }

  .gallery-thumbnails {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .tabs__btn {
    font-size: 0.875rem;
  }
}





/* Большая картика*/

.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-modal.is-open {
    display: flex;
    opacity: 1;
}

.image-modal__content {
    max-width: 90%;
    max-height: 90vh;
    border-radius: var(--radius-md, 8px);
    object-fit: contain;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.image-modal.is-open .image-modal__content {
    transform: scale(1);
}

.image-modal__close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
    z-index: 10000;
}

.image-modal__close:hover {
    color: var(--color-accent, #ccc);
}






/* Модалка заказать звонок */

.modal {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.is-active {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 44, 34, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal__content {
    position: relative;
    background-color: var(--color-white, #fff);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg, 12px);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.modal.is-active .modal__content {
    transform: translateY(0);
}

.modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 28px;
    line-height: 1;
    color: var(--color-gray, #666);
    cursor: pointer;
    padding: 5px;
    transition: color 0.2s ease;
}

.modal__close:hover {
    color: var(--color-accent, #e67e22);
}

.modal__title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--color-gray-dark, #333);
    text-align: center;
}

.modal__subtitle {
    font-size: 0.9375rem;
    color: var(--color-gray, #666);
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.5;
}

.modal__form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal__input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background-color: var(--color-bg-light, #f8f9fa);
    border: 1px solid transparent;
    border-radius: var(--radius-sm, 6px);
    font-size: 0.9375rem;
    color: var(--color-gray-dark, #333);
    transition: var(--transition, 0.3s ease);
}

.modal__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.2);
}

.modal__btn {
    width: 100%;
    padding: 1rem;
    font-weight: 700;
    margin-top: 0.5rem;
}