.bk-page * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.site-nav__links {
  margin: auto;
}

.bk-page {
  width: 100%;
  min-height: 100%;
  background: #fff;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
}

.bk-page p {
  line-height: 1.35;
}

.bk-menubar {
  position: fixed;
  top: 50vh;
  transform: translateY(-50%);
  z-index: 10;
  width: 98vw;
  min-height: 4vw;
  margin: 0 1vw 1vw;
  padding: 1.2vw 2vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 10vw;
}

.bk-logo-link,
.bk-basket {
  text-decoration: none;
  color: #111;
  font-size: 1.5vw;
}

.bk-list-container {
  display: flex;
  align-items: center;
}

.bk-menu {
  display: none;
}

.bk-li-list {
  display: flex;
  gap: 1vw;
  list-style: none;
}

.bk-li-list a {
  text-decoration: none;
  font-size: 1.5vw;
  color: #000;
}

.bk-li-list a:hover,
.bk-li-list a.bk-active {
  text-decoration: underline;
}

.bk-page-content {
}

.bk-page-title {
  font-size: clamp(32px, 7vw, 96px);
  line-height: 0.95;
  margin-bottom: 1.5rem;
}

.bk-page-text {
  max-width: 720px;
  font-size: clamp(16px, 2vw, 24px);
}

.bk-first-banner {
  position: relative;
  width: 100vw;
  min-height: 22vw;
  margin-top: 1vw;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #000;
  color: aliceblue;
  text-align: center;
}

.bk-first-banner h1 {
  position: relative;
  z-index: 2;
  max-width: 900px;
  font-size: clamp(28px, 5vw, 72px);
  line-height: 1;
}

.bk-color-list {
  position: absolute;
  inset: 0;
}

.bk-color {
  position: absolute;
  width: 18vw;
  height: 18vw;
  filter: blur(100px);
  opacity: 0.8;
}

.bk-c10 {
  background: red;
  animation: bk-redy 12s linear infinite;
}

.bk-c11 {
  background: rgb(236, 238, 240);
  animation: bk-bluey 12s linear infinite;
}

.bk-c12 {
  background: rgb(0, 255, 8);
  animation: bk-greeny 12s linear infinite;
}

.bk-c13 {
  background: rgb(255, 217, 0);
  animation: bk-yellowy 12s linear infinite;
}

@keyframes bk-redy {
  0%,
  100% {
    top: 10%;
    left: 80%;
  }

  50% {
    top: 60%;
    left: 20%;
  }
}

@keyframes bk-bluey {
  0%,
  100% {
    top: 70%;
    left: 10%;
  }

  50% {
    top: 10%;
    left: 60%;
  }
}

@keyframes bk-greeny {
  0%,
  100% {
    top: 20%;
    left: 20%;
  }

  50% {
    top: 60%;
    left: 70%;
  }
}

@keyframes bk-yellowy {
  0%,
  100% {
    top: 50%;
    left: 45%;
  }

  50% {
    top: 15%;
    left: 5%;
  }
}

.bk-page form {
  width: min(560px, 92vw);
  margin: 3vw auto;
  display: grid;
  gap: 0.8rem;
}

.bk-page form h1 {
  font-size: clamp(24px, 3vw, 40px);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.bk-page form h3 {
  margin-top: 0.7rem;
  font-size: 1rem;
}

.bk-page input[type="text"],
.bk-page input[type="date"],
.bk-page input[type="email"],
.bk-page input[type="tel"],
.bk-page input[type="number"],
.bk-page select {
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 1rem;
  color: rgb(101, 101, 101);
  border-radius: 0.7rem;
  border: 1px solid #ddd;
  outline: none;
}

.bk-page input:focus,
.bk-page select:focus {
  border-color: #111;
}

.bk-flexim {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.bk-page button,
.bk-button-link {
  display: inline-block;
  width: fit-content;
  margin-top: 1rem;
  padding: 0.75rem 1.4rem;
  border: none;
  border-radius: 2rem;
  background: rgb(0, 0, 0);
  color: aliceblue;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

/* Book slider */
.bk-page.bk-page {
  overflow: hidden;
  height: 100vh;
}

.bk-page .bk-menubar {
  position: fixed;
  top: 1vw;
  left: 0;
}

.bk-logo {
  position: fixed;
  top: 7vw;
  left: 1.5rem;
  z-index: 5;
}

.bk-logo a {
  text-decoration: none;
  color: #000;
  font-weight: 600;
}

.bk-sidebar {
  position: fixed;
  left: 1.5rem;
  bottom: 2rem;
  z-index: 5;
  max-width: 360px;
}

.bk-sidebar-title {
  text-transform: uppercase;
  font-size: clamp(42px, 8vw, 110px);
  line-height: 0.85;
  margin-bottom: 1rem;
}

.bk-slider {
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.bk-slider-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: max-content;
  min-width: 100%;
  padding: 0 40vw;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 100px;
}

.bk-slide {
  flex: 0 0 auto;
  width: 400px;
  height: 500px;
  background: #e3e3e3;
}

.bk-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.bk-main-photo {
  width: 100vw;
  height: 100vh;
}

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

#bk-main-block {
  display: flex;
  flex-direction: row;
}

@media (max-width: 700px) {
  .bk-menubar {
    height: auto;
    border-radius: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .bk-logo-link,
  .bk-basket,
  .bk-li-list a {
    font-size: 16px;
  }

  .bk-li-list {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .bk-page .bk-menubar {
    position: relative;
    top: auto;
  }

  .bk-logo,
  .bk-sidebar {
    position: relative;
    top: auto;
    left: auto;
    bottom: auto;
    margin: 1rem;
  }

  .bk-page.bk-page {
    height: auto;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .bk-slider {
    height: auto;
    overflow: visible;
  }

  .bk-slider-wrapper {
    position: relative;
    padding: 2rem 1rem;
    height: auto;
    width: 100%;
    flex-direction: column;
    gap: 1rem;
    transform: none !important;
  }

  .bk-slide {
    width: min(400px, 90vw);
    height: 60vh;
  }
}