:root {
  --blue-color: #0090f8;
  --black-color: #1f1f1f;
  --white-color: #fff;
  --shadow-height: 16rem;
}

@media (max-width: 1024px) {
  :root {
    --shadow-height: 8rem;
  }
}

.button {
  padding: 1rem;
  border-radius: 1rem;
  background-color: var(--blue-color);
  color: var(--white-color);
  text-align: center;
  opacity: 0.5;
  transition: opacity 0.3s ease-in-out;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding-block: 2rem;
  z-index: 3;
  transition: background-color 0.3s ease-in-out;
}

.header--dark {
  background-color: var(--black-color);
}

.header__logo {
  height: 3rem;
}

.header__phone-icon {
  border: none;
  height: 3rem;
}

.header__phone-icon svg {
  height: 100%;
  width: auto;
}

.header-nav__link,
.header__phone {
  font-size: 2rem;
}

.header-nav__link {
  opacity: 0.5;
}

.header-social {
  border-color: var(--blue-color);
}

.main-banner__subtitle {
  margin-top: -0.9em;
}

.main-banner__title {
  color: var(--blue-color);
}

.section-title,
.prod__name,
.gallery__subtitle {
  border-color: var(--blue-color);
}

.contacts__title span {
  color: var(--blue-color);
}

.contacts__list {
  gap: 4rem;
  padding: 1rem;
  background-color: rgba(0, 0, 0, 0.5);
}

.contacts__list .button {
  width: 100%;
}

.contacts__link {
  text-transform: none;
  gap: 2rem;
  font-size: 3rem;
}

.contacts__link-icon {
  border: none;
  width: 4rem;
  height: 4rem;
}

.contacts__link-icon svg {
  width: 100%;
  height: auto;
}

.footer {
  padding-block: 2rem;
  background-color: inherit;
}

.footer__copyright {
  margin: 0 auto;
  text-transform: uppercase;
}

.about__video {
  width: 100%;
  aspect-ratio: 1/0.5625;
  object-fit: contain;
  object-position: center;
  background-color: #000;
}

.about__container iframe {
  width: 100%;
  aspect-ratio: 1/0.5625;
  object-fit: contain;
  object-position: center;
  background-color: #000;
}



.prod {
  background: none;
}

.prod:before,
.prod::after {
  content: none;
}

.section-shadow {
  position: relative;
}

.section-shadow::before,
.section-shadow::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: calc(3 * var(--shadow-height));
  z-index: -1;
}

.section-shadow::before {
  top: 0;
  bottom: unset;
  background: linear-gradient(
    180deg,
    rgba(31, 31, 31, 1) 0%,
    rgba(31, 31, 31, 1) 33%,
    rgba(31, 31, 31, 0) 100%
  );
}

.section-shadow::after {
  content: '';
  top: unset;
  bottom: 100%;
  background: linear-gradient(
    0deg,
    rgba(31, 31, 31, 1) 0%,
    rgba(31, 31, 31, 1) 33%,
    rgba(31, 31, 31, 0) 100%
  );
}

.clients__bg {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

body section:not(:last-child) {
  padding: 0;
  margin-bottom: var(--shadow-height);
}

/* modal */
.overflow-hidden {
  overflow: hidden;
}

.modal:not([open]) {
  opacity: 0;
  visibility: hidden;
}

.modal {
  --modal-max-width: 50rem;
  --modal-padding-block: 2rem;

  position: fixed;
  left: 0;
  top: 0;
  max-width: 100vw;
  max-height: 100dvh;
  width: 100vw;
  height: 100dvh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  border: none;
  background: rgba(48, 48, 48, 0.1);
  -ms-scroll-chaining: none;
  overscroll-behavior: contain;
  visibility: visible;
  overflow: hidden;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
  color: inherit;
  opacity: 1;
  -webkit-transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
  z-index: 11;
}

.modal::before {
  content: '';
  position: absolute;
  inset: 0;
  -webkit-backdrop-filter: blur(0.7rem);
  backdrop-filter: blur(0.7rem);
}

.modal__content {
  position: relative;
  width: 100%;
  max-height: 100%;
  -webkit-transition: opacity 0.3s ease-in-out 0.3s,
    -webkit-transform 0.3s ease-in-out 0.3s;
  transition: opacity 0.3s ease-in-out 0.3s,
    -webkit-transform 0.3s ease-in-out 0.3s;
  transition: opacity 0.3s ease-in-out 0.3s, transform 0.3s ease-in-out 0.3s;
  transition: opacity 0.3s ease-in-out 0.3s, transform 0.3s ease-in-out 0.3s,
    -webkit-transform 0.3s ease-in-out 0.3s;
}

.modal__close {
  position: absolute;
  top: 0;
  right: clamp(
    0px,
    50vw - var(--modal-max-width) * 0.5,
    50vw - var(--modal-max-width) * 0.5
  );
  margin: 1rem;
  width: 4rem;
  z-index: 1;
  background: none;
  color: #fff;
  -webkit-transition: opacity 0.3s ease-in-out;
  transition: opacity 0.3s ease-in-out;
  z-index: 2;
  cursor: pointer;
}

.modal__close-icon {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
}

.modal__scroll {
  position: relative;
  width: 100%;
  max-height: 100dvh;
  z-index: 1;
  overflow-y: auto;
  -ms-scroll-chaining: none;
  overscroll-behavior: contain;
}

.modal__inner {
  position: relative;
  width: 100%;
  max-width: var(--modal-max-width);
  margin: 0 auto;
}

.popup-callback {
  padding: 4rem 3rem 2rem;
  background-color: rgba(0, 0, 0, 0.75);
}

.popup-callback__title {
  margin-bottom: 2rem;
  text-transform: uppercase;
  text-align: center;
}

.popup-callback__form {
  display: grid;
  gap: 2rem;
}

.popup-callback__field {
  display: grid;
  gap: 1rem;
}

.popup-callback__field-name {
  order: -1;
  font-size: 1.3rem;
}

.popup-callback__field-input,
.popup-callback__field--captcha .inputtext {
  padding: 1rem;
  font-size: 1.6rem;
  border: 1px solid transparent;
  transition: border-color var(--transition-duration) ease-in-out;
}

.popup-callback__field--captcha br {
  display: none;
}

.popup-callback__field-input:is(textarea) {
  height: 10rem;
  resize: vertical;
}

.popup-callback__field-input:user-invalid {
  border-color: red;
}

.popup-callback__field-input:required ~ .popup-callback__field-name::after {
  content: ' *';
}

@media (hover: hover) and (pointer: fine) {
  .modal__close:hover {
    opacity: 0.5;
  }

  .header-nav__link:hover {
    color: inherit;
    opacity: 1;
  }

  .button:hover {
    opacity: 1;
  }

  .header-social__link:hover,
  .header__phone:hover,
  .contacts__link:hover {
    color: var(--blue-color);
  }

  .swiper-btn:hover,
  .contacts__link:hover .contacts__link-icon {
    border-color: var(--blue-color);
    color: var(--blue-color);
  }
}

@media (max-width: 550px) {
  .header__menu-inner {
    background-color: var(--black-color);
  }
}

body section.section-shadow {
  margin-bottom: 0;
} 

body section:not(:first-child) {
  padding-top: var(--shadow-height);
}

body section.section-shadow {
    padding-bottom: var(--shadow-height);
}

body section.section-shadow::before, .section-shadow::after {
	height: var(--shadow-height);
}