/* 3-Column Entrance Layout */
.entrance.js-entrance {
  display: flex;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.entrance-left,
.entrance-center,
.entrance-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-size: cover;
  background-position: center;
  transition: all 0.3s ease;
}

/* Background images for each section */
.entrance-left {
  background-image: url("/images/sys/resize/520x0/a89ad045897832195e5ac1f8812f3fd0.jpg");
}

.entrance-center {
  background-image: url("/images/2025/kashi-mv-vertical.jpg");
}

.entrance-right {
  background-image: url("/images/2025/yakumi-mv-vertical.jpg");
}

/* Dark overlay for better text visibility */
.entrance-left::before,
.entrance-center::before,
.entrance-right::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  transition: background 0.3s ease;
  z-index: 1;
}

/* Hover effect - lighten overlay */
.entrance-left:hover::before,
.entrance-center:hover::before,
.entrance-right:hover::before {
  background: rgba(0, 0, 0, 0.2);
}

.entrance-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #fff;
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
}

.entrance-logo {
  margin-bottom: 20px;
  opacity: 0.9;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.entrance-link:hover .entrance-logo {
  transform: scale(1.1);
  opacity: 1;
}

.entrance-text {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 2px;
  opacity: 0.9;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.entrance-link:hover .entrance-text {
  transform: translateY(-5px);
  opacity: 1;
}

/* Responsive - SP (Smartphone) Layout */
@media (max-width: 768px) {
  .entrance.js-entrance {
    flex-direction: column;
    height: auto;
  }

  .entrance-logo {
    width: 200px;
  }

  .entrance-left,
  .entrance-center,
  .entrance-right {
    height: 100vh;
    width: 100%;
  }

  /* SP用の背景画像 */
  .entrance-left {
    background-image: url("/images/sys/resize/1920x0/0d506975431284f607bc28a7dfeefc1d.jpg");
  }

  .entrance-center {
    background-image: url("/images/2025/kashi-mv-horizontal.jpg");
  }

  .entrance-right {
    background-image: url("/images/2025/yakumi-mv-horizontal.jpg");
  }

  .entrance-text {
    font-size: 20px;
  }
}

/* Tablet adjustments */
@media (max-width: 768px) {
  .entrance-text {
    font-size: 18px;
    letter-spacing: 1.5px;
  }
}

/* Small mobile */
@media (max-width: 520px) {
  .entrance-left,
  .entrance-center,
  .entrance-right {
    height: 33.33vh;
  }

  .entrance.js-entrance {
    height: 100vh;
  }

  .entrance-text {
    font-size: 16px;
    letter-spacing: 1px;
  }
}