/* ========================================
   0. CUSTOM PROPERTIES
   ======================================== */
:root {
  /* Colors */
  --color-black: #161717;
  --color-white: #FFFFFF;
  --color-gray-dark: #6D6D6D;
  --color-gray-medium: #B0B0B0;
  --color-gray-light: #F2F2F2;
  --color-gray-bg: #FAFAFA;

  /* Typography */
  --font-family: 'Inter', sans-serif;
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --fs-hero: clamp(3.2rem, 5vw, 6.4rem);
  --fs-h2: clamp(2.6rem, 3.5vw, 4.8rem);
  --fs-h3: clamp(2rem, 2.5vw, 3.2rem);
  --fs-h4: clamp(1.6rem, 1.8vw, 2rem);
  --fs-body: clamp(1.4rem, 1.2vw, 1.6rem);
  --fs-small: clamp(1.2rem, 1vw, 1.4rem);
  --fs-eyebrow: clamp(1rem, 0.9vw, 1.2rem);

  /* Spacing */
  --section-padding: clamp(5rem, 7vw, 10rem);
  --container-max: 140rem;
  --container-padding: clamp(2rem, 4vw, 4rem);

  /* Transitions */
  --ease: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.3s var(--ease);
  --transition-medium: 0.5s var(--ease);
  --transition-slow: 0.7s var(--ease);

  /* Header */
  --header-height: 8rem;
}

/* ========================================
   1. RESET & BASE
   ======================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

body.no-scroll {
  overflow: hidden;
}

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

.section {
  padding: var(--section-padding) 0;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(4rem, 5vw, 6rem);
}

.section-header__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  line-height: 1.2;
  color: var(--color-black);
}

.eyebrow {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray-dark);
  margin-bottom: 1.6rem;
}

/* ========================================
   3. COMPONENTS
   ======================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.7rem 3.2rem;
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
}

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

.btn--primary:hover {
  background-color: #333636;
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-white);
}

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

.btn--small {
  padding: 1.2rem 2.4rem;
  font-size: var(--fs-small);
}

.btn__arrow {
  width: 2rem;
  height: 2rem;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.btn:hover .btn__arrow {
  transform: translateX(25%);
}

/* ========================================
   4. HEADER & NAVIGATION
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.header--scrolled {
  background-color: var(--color-white);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.header--scrolled .header__logo {
  color: var(--color-black);
}

.header--scrolled .header__nav-link {
  color: var(--color-black);
}

.header--scrolled .header__burger span {
  background-color: var(--color-black);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  font-size: 2.4rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  color: var(--color-white);
  transition: color var(--transition-fast);
  z-index: 101;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.header__logo-img {
  height: 2.4rem;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter var(--transition-fast);
}

.header--scrolled .header__logo-img {
  filter: brightness(0);
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.header__nav-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color var(--transition-fast), opacity var(--transition-fast);
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -0.4rem;
  left: 0;
  width: 0;
  height: 1px;
  background-color: currentColor;
  transition: width var(--transition-fast);
}

.header__nav-link:hover::after {
  width: 100%;
}

/* Hamburger */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  width: 4rem;
  height: 4rem;
  z-index: 1000;
  position: relative;
  padding: 0;
}

.header__burger span {
  display: block;
  width: 2.4rem;
  height: 1.5px;
  background-color: var(--color-white);
  transition: transform var(--transition-fast),
              opacity var(--transition-fast),
              background-color var(--transition-fast);
  transform-origin: center;
}

.header__burger--active span:nth-child(1) {
  transform: translateY(calc(0.6rem + 1.5px / 2)) rotate(45deg);
}

.header__burger--active span:nth-child(2) {
  opacity: 0;
}

.header__burger--active span:nth-child(3) {
  transform: translateY(calc(-0.6rem - 1.5px / 2)) rotate(-45deg);
}

/* Mobile Nav */
@media (max-width: 1023px) {
  .header__burger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background-color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium),
                visibility var(--transition-medium);
    z-index: 999;
  }

  .header__nav--open {
    opacity: 1;
    visibility: visible;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 3.2rem;
  }

  .header__nav-link,
  .header--scrolled .header__nav-link {
    font-size: 2.4rem;
    color: var(--color-white);
  }

  .header__burger--active span,
  .header--scrolled .header__burger--active span {
    background-color: var(--color-white);
  }
}

/* ========================================
   5. HERO SECTION
   ======================================== */
.hero {
  position: relative;
  width: 100%;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
}

.hero__slider {
  width: 100%;
  height: 100%;
}

.hero__slider .swiper-wrapper,
.hero__slider .swiper-slide {
  height: 100%;
}

.hero__slide {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero__slide-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 6s linear;
}

.swiper-slide-active .hero__slide-image {
  transform: scale(1);
}

.hero__slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(22, 23, 23, 0.7) 0%,
    rgba(22, 23, 23, 0.3) 60%,
    rgba(22, 23, 23, 0.1) 100%
  );
  z-index: 2;
}

.hero__slide-content {
  position: relative;
  z-index: 5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  max-width: 70rem;
  padding-top: var(--header-height);
}

.hero__slide-content > * {
  opacity: 0;
  transform: translateX(-4rem);
  transition: opacity var(--transition-medium),
              transform var(--transition-medium);
}

.swiper-slide:first-child .hero__slide-content > *,
.swiper-slide-active .hero__slide-content > * {
  opacity: 1;
  transform: translateX(0);
}

.swiper-slide-active .hero__slide-content > *:nth-child(1) { transition-delay: 0.1s; }
.swiper-slide-active .hero__slide-content > *:nth-child(2) { transition-delay: 0.25s; }
.swiper-slide-active .hero__slide-content > *:nth-child(3) { transition-delay: 0.4s; }
.swiper-slide-active .hero__slide-content > *:nth-child(4) { transition-delay: 0.55s; }

.hero__slide-label {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 2rem;
  opacity: 0.8;
}

.hero__slide-title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 2rem;
}

.hero__slide-subtitle {
  font-size: clamp(1.4rem, 1.5vw, 1.8rem);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 3.2rem;
  max-width: 50rem;
  line-height: 1.5;
}

/* Swiper Pagination */
.hero__pagination.swiper-pagination {
  bottom: 4rem;
}

.hero__pagination .swiper-pagination-bullet {
  width: 1.2rem;
  height: 1.2rem;
  background: rgba(255, 255, 255, 0.4);
  opacity: 1;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
}

.hero__pagination .swiper-pagination-bullet-active {
  background: var(--color-white);
  transform: scale(1.3);
}

/* ========================================
   6. PRODUCTS SECTION
   ======================================== */
.products__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.products__card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.products__card-image {
  width: 100%;
  overflow: hidden;
}

.products__card-image img {
  width: 100%;
  height: 40rem;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.products__card:hover .products__card-image img {
  transform: scale(1.05);
}

.products__card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 4rem;
  background: linear-gradient(
    to top,
    rgba(22, 23, 23, 0.85) 0%,
    rgba(22, 23, 23, 0.2) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.products__card:hover .products__card-overlay {
  opacity: 1;
}

.products__card-label {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: 1.2rem;
}

.products__card-desc {
  font-size: var(--fs-body);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.4rem;
  max-width: 40rem;
  line-height: 1.5;
}

.products__card-overlay .btn {
  align-self: flex-start;
  transform: translateY(2rem);
  transition: transform var(--transition-medium),
              background-color var(--transition-fast),
              color var(--transition-fast);
}

.products__card:hover .products__card-overlay .btn {
  transform: translateY(0);
}

/* Mobile: always show overlay */
@media (max-width: 767px) {
  .products__grid {
    grid-template-columns: 1fr;
  }

  .products__card-overlay {
    opacity: 1;
  }

  .products__card-overlay .btn {
    transform: translateY(0);
  }

  .products__card-image img {
    height: 30rem;
  }
}

/* Auto-span last card when odd count */
@media (min-width: 768px) {
  .products__card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .products__card:last-child:nth-child(odd) .products__card-image img {
    height: 50rem;
  }
}

/* ========================================
   7. FEATURES SECTION
   ======================================== */
.features {
  background-color: var(--color-gray-bg);
}

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

.features__card {
  text-align: center;
  padding: 3.2rem 2rem;
  transition: transform var(--transition-fast);
}

.features__card:hover {
  transform: translateY(-0.4rem);
}

.features__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 8rem;
  height: 8rem;
  margin: 0 auto 2.4rem;
  border-radius: 50%;
  background-color: var(--color-white);
  color: var(--color-black);
}

.features__icon svg {
  width: 3.2rem;
  height: 3.2rem;
}

.features__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  margin-bottom: 1.2rem;
  color: var(--color-black);
}

.features__desc {
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
  line-height: 1.6;
}

@media (max-width: 1023px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

@media (max-width: 575px) {
  .features__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ========================================
   8. ABOUT SECTION
   ======================================== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(4rem, 6vw, 8rem);
  align-items: center;
}

.about__image {
  position: relative;
  overflow: hidden;
}

.about__image img {
  width: 100%;
  height: 55rem;
  object-fit: cover;
}

.about__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  line-height: 1.2;
  margin-bottom: 2.4rem;
}

.about__text {
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
  line-height: 1.7;
  margin-bottom: 1.6rem;
}

.about__text:last-of-type {
  margin-bottom: 4rem;
}

.about__stats {
  display: flex;
  gap: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--color-gray-light);
}

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

.about__stat-number {
  font-size: clamp(3.2rem, 4vw, 4.8rem);
  font-weight: var(--fw-bold);
  line-height: 1;
  color: var(--color-black);
}

.about__stat-suffix {
  font-size: clamp(2rem, 2.5vw, 3.2rem);
  font-weight: var(--fw-bold);
  color: var(--color-black);
  display: inline;
}

.about__stat-number,
.about__stat-suffix {
  display: inline;
}

.about__stat-label {
  display: block;
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
  margin-top: 0.8rem;
}

@media (max-width: 1023px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .about__image img {
    height: 40rem;
  }
}

@media (max-width: 575px) {
  .about__stats {
    flex-direction: column;
    gap: 2.4rem;
  }
}

/* ========================================
   9. REALIZATIONS SECTION
   ======================================== */
.realizations {
  background-color: var(--color-gray-bg);
}

.realizations__slider {
  overflow: hidden;
}

.realizations__item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.realizations__item img {
  width: 100%;
  height: 35rem;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.realizations__item:hover img {
  transform: scale(1.05);
}

.realizations__item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 3rem;
  background: linear-gradient(
    to top,
    rgba(22, 23, 23, 0.8) 0%,
    transparent 100%
  );
  transform: translateY(1rem);
  opacity: 0;
  transition: transform var(--transition-medium),
              opacity var(--transition-medium);
}

.realizations__item:hover .realizations__item-overlay {
  transform: translateY(0);
  opacity: 1;
}

.realizations__item-tag {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.8rem;
}

.realizations__item-title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-medium);
  color: var(--color-white);
  line-height: 1.3;
}

.realizations__pagination.swiper-pagination {
  position: relative;
  margin-top: 3rem;
}

.realizations__pagination .swiper-pagination-bullet {
  width: 1.2rem;
  height: 1.2rem;
  background: rgba(0, 0, 0, 0.2);
  opacity: 1;
  transition: background var(--transition-fast),
              transform var(--transition-fast);
}

.realizations__pagination .swiper-pagination-bullet-active {
  background: var(--color-dark);
  transform: scale(1.3);
}

@media (max-width: 575px) {
  .realizations__item img {
    height: 28rem;
  }

  .realizations__item-overlay {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ========================================
   10. CTA BANNER
   ======================================== */
.cta-banner {
  background-color: var(--color-black);
  padding: var(--section-padding) 0;
}

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

.cta-banner__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 1.6rem;
}

.cta-banner__subtitle {
  font-size: clamp(1.4rem, 1.5vw, 1.8rem);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 4rem;
}

/* ========================================
   11. CONTACT SECTION
   ======================================== */
.contact__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(4rem, 6vw, 8rem);
}

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact__form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact__input {
  width: 100%;
  padding: 1.6rem 0;
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-black);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-gray-medium);
  outline: none;
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
}

.contact__input::placeholder {
  color: var(--color-gray-medium);
}

.contact__input:focus {
  border-bottom-color: var(--color-black);
}

.contact__input--error {
  border-bottom-color: #c0392b;
}

.contact__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%236D6D6D' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: 2rem;
}

.contact__select option {
  color: var(--color-black);
}

.contact__textarea {
  resize: vertical;
  min-height: 12rem;
}

/* Checkbox */
.contact__checkbox-group {
  margin-top: 0.8rem;
}

.contact__checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  cursor: pointer;
}

.contact__checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.contact__checkbox-custom {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border: 1.5px solid var(--color-gray-medium);
  margin-top: 0.2rem;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast);
  position: relative;
}

.contact__checkbox:checked + .contact__checkbox-custom {
  background-color: var(--color-black);
  border-color: var(--color-black);
}

.contact__checkbox:checked + .contact__checkbox-custom::after {
  content: '';
  position: absolute;
  top: 0.3rem;
  left: 0.6rem;
  width: 0.5rem;
  height: 0.9rem;
  border: solid var(--color-white);
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

.contact__checkbox-text {
  font-size: var(--fs-small);
  color: var(--color-gray-dark);
  line-height: 1.5;
}

.contact__checkbox-text a {
  color: var(--color-black);
  text-decoration: underline;
}

.contact__form .btn {
  align-self: flex-start;
  margin-top: 1.6rem;
}

/* Contact Info */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 3.2rem;
  padding-top: 1rem;
}

.contact__info-block {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}

.contact__info-icon {
  flex-shrink: 0;
  width: 4.8rem;
  height: 4.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-light);
  border-radius: 50%;
  color: var(--color-black);
}

.contact__info-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  margin-bottom: 0.4rem;
  color: var(--color-black);
}

.contact__info-text {
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
  line-height: 1.6;
}

/* Contact success message */
.contact__success {
  font-size: var(--fs-h4);
  font-weight: var(--fw-medium);
  color: var(--color-black);
  text-align: center;
  padding: 6rem 0;
}

@media (max-width: 1023px) {
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
}

@media (max-width: 575px) {
  .contact__form-row {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   12. FOOTER
   ======================================== */
.footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: clamp(4rem, 6vw, 8rem) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem;
  padding-bottom: clamp(4rem, 5vw, 6rem);
}

.footer__logo {
  display: inline-block;
  font-size: 2rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  color: var(--color-white);
  margin-bottom: 2rem;
}

.footer__desc {
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  color: var(--color-gray-medium);
  line-height: 1.7;
  margin-bottom: 2.4rem;
  max-width: 30rem;
}

.footer__social {
  display: flex;
  gap: 1.6rem;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--color-white);
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-black);
}

.footer__col-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2.4rem;
  color: var(--color-white);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer__link {
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  color: var(--color-gray-medium);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2.4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--fs-small);
  color: var(--color-gray-medium);
}

.footer__bottom-link {
  color: var(--color-gray-medium);
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
  color: var(--color-white);
}

@media (max-width: 1023px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }

  .footer__col--brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 575px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 1.2rem;
    text-align: center;
  }
}

/* ========================================
   13. ANIMATIONS & KEYFRAMES
   ======================================== */

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(3rem);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity var(--transition-medium),
              transform var(--transition-medium);
}

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; }

/* ========================================
   14. MEDIA QUERIES — additional refinements
   ======================================== */
@media (min-width: 1440px) {
  :root {
    --header-height: 10rem;
  }
}

@media (max-width: 767px) {
  .hero__slide-content {
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
  }

  .hero__slide-title {
    font-size: clamp(2.8rem, 8vw, 4rem);
  }

  .hero__pagination.swiper-pagination {
    bottom: 2.4rem;
  }
}

/* ========================================
   15. SPLASH PAGE
   ======================================== */
.body--splash {
  overflow-x: hidden;
}

.splash {
  position: relative;
  width: 100%;
  height: 100dvh;
  min-height: 60rem;
}

.splash__logo {
  position: absolute;
  top: 3.2rem;
  left: clamp(2.4rem, 4vw, 6rem);
  font-size: 2.4rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  color: var(--color-white);
  z-index: 10;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.splash__logo-img {
  height: 2.4rem;
  width: auto;
}

.splash__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
  position: relative;
}

.splash__grid::after {
  content: '';
  position: absolute;
  top: 15%;
  left: 50%;
  width: 1px;
  height: 70%;
  background-color: rgba(255, 255, 255, 0.15);
  z-index: 5;
  pointer-events: none;
}

.splash__tile {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  text-decoration: none;
  cursor: pointer;
}

.splash__tile-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-medium);
}

.splash__tile:hover .splash__tile-image {
  transform: scale(1.05);
}

.splash__tile-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(
    to top,
    rgba(22, 23, 23, 0.85) 0%,
    rgba(22, 23, 23, 0.2) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity var(--transition-medium);
  z-index: 2;
}

.splash__tile:hover .splash__tile-overlay {
  opacity: 1;
}

.splash__tile-content {
  position: relative;
  z-index: 5;
  padding: clamp(3rem, 5vw, 6rem);
  color: var(--color-white);
}

.splash__tile-label {
  display: block;
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: 1.2rem;
  transition: transform var(--transition-medium);
}

.splash__tile:hover .splash__tile-label {
  transform: translateY(-0.5rem);
}

.splash__tile-title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  line-height: 1.2;
  margin-bottom: 1.6rem;
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--transition-medium),
              transform var(--transition-medium);
}

.splash__tile:hover .splash__tile-title {
  opacity: 1;
  transform: translateY(0);
}

.splash__tile-subtitle {
  font-size: clamp(1.4rem, 1.5vw, 1.8rem);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.4rem;
  max-width: 40rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--transition-medium) 0.05s,
              transform var(--transition-medium) 0.05s;
}

.splash__tile:hover .splash__tile-subtitle {
  opacity: 1;
  transform: translateY(0);
}

.splash__tile-cta {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--color-white);
  letter-spacing: 0.02em;
  align-self: flex-start;
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity var(--transition-medium) 0.1s,
              transform var(--transition-medium) 0.1s;
}

.splash__tile:hover .splash__tile-cta {
  opacity: 1;
  transform: translateY(0);
}

.splash__tile:hover .splash__tile-cta .btn__arrow {
  transform: translateX(25%);
}

/* Splash entry animations */
@keyframes splashFadeIn {
  from {
    opacity: 0;
    transform: translateY(-1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes splashTileReveal {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes splashContentUp {
  from {
    opacity: 0;
    transform: translateY(3rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.splash__grid::after {
  opacity: 0;
  animation: splashFadeIn 0.6s ease-out 0.8s forwards;
}

@media (max-width: 767px) {
  .splash {
    height: auto;
    min-height: 0;
  }

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

  .splash__grid::after {
    display: none;
  }

  .splash__tile {
    min-height: 100dvh;
  }

  .splash__tile-overlay {
    opacity: 1;
  }

  .splash__tile-title,
  .splash__tile-subtitle {
    opacity: 1;
    transform: translateY(0);
  }

  .splash__tile-cta {
    opacity: 1;
    transform: translateY(0);
  }

  .splash__tile-title {
    font-size: clamp(2.4rem, 6vw, 3.6rem);
  }
}

/* ========================================
   16. PRODUCT HERO
   ======================================== */
.product-hero {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 40rem;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.product-hero__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.product-hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to top,
    rgba(22, 23, 23, 0.7) 0%,
    rgba(22, 23, 23, 0.3) 50%,
    rgba(22, 23, 23, 0.1) 100%
  );
  z-index: 2;
}

.product-hero__content {
  position: relative;
  z-index: 5;
  padding-bottom: clamp(4rem, 6vw, 8rem);
}

.product-hero__label {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.6rem;
}

.product-hero__title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 1.6rem;
}

.product-hero__subtitle {
  font-size: clamp(1.4rem, 1.5vw, 1.8rem);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.85);
  max-width: 55rem;
  line-height: 1.5;
}

/* ========================================
   17. PRODUCT INFO
   ======================================== */
.product-info__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(4rem, 6vw, 8rem);
  align-items: center;
}

.product-info__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  line-height: 1.2;
  margin-bottom: 2.4rem;
}

.product-info__text {
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
  line-height: 1.7;
  margin-bottom: 1.6rem;
}

.product-info__image {
  overflow: hidden;
}

.product-info__image img {
  width: 100%;
  height: 45rem;
  object-fit: cover;
}

@media (max-width: 1023px) {
  .product-info__grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .product-info__image img {
    height: 35rem;
  }
}

/* ========================================
   18. CATALOGS SECTION
   ======================================== */
.catalogs {
  background-color: var(--color-gray-bg);
}

.catalogs__section {
  margin-bottom: 4rem;
}

.catalogs__section:last-child {
  margin-bottom: 0;
}

.catalogs__section-title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--color-dark);
  margin-bottom: 2rem;
}

.catalogs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(35rem, 1fr));
  gap: 2.4rem;
}

.catalogs__card {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  padding: 3.2rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  transition: box-shadow var(--transition-fast),
              border-color var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.catalogs__card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-color: var(--color-gray-medium);
}

.catalogs__card--placeholder {
  opacity: 0.5;
  pointer-events: none;
}

.catalogs__card-icon {
  flex-shrink: 0;
  width: 6rem;
  height: 6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-light);
  border-radius: 50%;
  color: var(--color-black);
}

.catalogs__card-icon svg {
  width: 2.8rem;
  height: 2.8rem;
}

.catalogs__card-content {
  flex: 1;
  min-width: 0;
}

.catalogs__card-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: 0.4rem;
}

.catalogs__card-meta {
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  color: var(--color-gray-dark);
}

.catalogs__card-action {
  flex-shrink: 0;
}

@media (max-width: 575px) {
  .catalogs__grid {
    grid-template-columns: 1fr;
  }

  .catalogs__card {
    flex-direction: column;
    text-align: center;
    gap: 1.6rem;
  }
}

/* ========================================
   19. BREADCRUMB
   ======================================== */
.breadcrumb {
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-gray-light);
}

.breadcrumb__link {
  font-size: var(--fs-small);
  color: var(--color-gray-dark);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-black);
}

.breadcrumb__separator {
  font-size: var(--fs-small);
  color: var(--color-gray-medium);
  margin: 0 0.8rem;
}

.breadcrumb__current {
  font-size: var(--fs-small);
  color: var(--color-black);
  font-weight: var(--fw-medium);
}