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

body {
  font-family: "Noto Sans JP", sans-serif;
  font-style: normal;
  background-image: url("../img/IMG_3149_dark.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  position: relative;
}

html {
  scroll-behavior: smooth !important;
}

/* modern scrollbar  */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-thumb {
  background-color: rgba(150, 150, 150, 0.706);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: rgba(191, 191, 191, 0.706);
}


/* Sidebar styles */
.sidebar {
  border-right-width: 1px;
  border-right-style: solid;
  width: 220px;
  background-color: rgba(0, 0, 0, 0.101);
  backdrop-filter: blur(2px);
}

.logo {
  position: relative;
  left: -10px;
}

.navigation {
  padding: 1px 5px;
  transition: 0.1s ease-out;
}

.navigation:hover {
  background-color: #707070bb;
  color: #fff;
}

/* Hamburger Menu Styles */
#hamburger-btn {
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease-in-out;
  height: 24px;
  width: 30px;
}

.hamburger-line {
  display: block;
  width: 30px;
  height: 3px;
  background-color: white;
  border-radius: 2px;
  margin: 0;
  position: absolute;
  left: 0;
  transition: all 0.3s ease-in-out;
}

.hamburger-line:nth-child(1) {
  top: 6px;
}

.hamburger-line:nth-child(2) {
  top: 18px;
}

#hamburger-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
  top: 6px;
}

#hamburger-btn.active .hamburger-line:nth-child(2) {
  transform: translateY(-6px) rotate(-45deg);
  top: 18px;
}

/* Mobile Menu Styles */
.mobile-sidebar {
  border-bottom-width: 1px;
  border-bottom-style: solid;
  width: 100%;
  display: flex;
  align-items: center;
}

.mobile-nav {
  transition: opacity 0.3s ease, visibility 0.3s ease;
  opacity: 0;
  visibility: hidden;
}

.mobile-nav.active {
  opacity: 1;
  visibility: visible;
  display: flex;
}

/* Main content styles */
main {
  min-height: 100vh;
  width: 100%;
}

.content-container {
  width: 100%;
}

.content {
  padding-left: 260px;
  padding-right: 40px;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

/* slideshow styles */
.slideshow {
  position: relative;
  overflow: hidden;
}

.slideshow-item {
  transition: opacity 0.8s ease;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0; /* Start with invisible slides */
}

.slideshow-item.current {
  opacity: 1; /* Current slide fully visible */
  z-index: 1;
}

.slideshow-item.previous {
  opacity: 0; /* Previous slide fades out */
  z-index: 0;
}

.slide-dot.active {
  opacity: 1;
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

.slide-dot {
  transition: all 0.3s ease;
  cursor: pointer;
  z-index: 10;
}

.text-shadow {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.7);
}

#toTopButton:hover {
  background-color: #57575757;
}

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

.footer {
  background-color: #444444;
}

/* Gallery styles */
.gallery-container {
  position: relative;
  width: 100%;
}

.gallery-wrapper {
  display: flex;
  width: 100%;
  transition: transform 0.5s ease;
}

.gallery-page {
  flex: 0 0 100%;
}

.gallery-nav {
  z-index: 10;
  opacity: 0.8;
  transition: opacity 0.3s, transform 0.3s;
}

.gallery-nav:hover {
  opacity: 1;
  transform: translateY(-50%) scale(1.1);
}

.gallery-nav:active {
  transform: translateY(-50%) scale(0.95);
}

#imageModal {
  transition: opacity 0.3s ease;
}

#modalImage {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  z-index: 60;
}

.modal-close-btn:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* New animation classes */
.modal-animate-in {
  animation: modalFadeIn 0.3s ease forwards;
}

.modal-animate-out {
  animation: modalFadeOut 0.3s ease forwards;
}

.modal-image-in {
  animation: imageZoomIn 0.4s ease forwards;
}

.modal-image-out {
  animation: imageZoomOut 0.3s ease forwards;
}

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

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

@keyframes imageZoomIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes imageZoomOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.9);
  }
}

/* Apply pointer cursor to all clickable images */
.gallery-container img,
#intractive .mx-2 img {
  transition: 0.3s ease-out;
  cursor: pointer;
}

.gallery-container img:hover,
#intractive .mx-2 img:hover {
  transform: scale(1.03);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
}

/* Hide mobile menu on larger screens */
@media (width > 768px) {
  #hamburger-btn {
    display: none;
  }

  .mobile-sidebar {
    display: none;
    visibility: hidden;
  }
}

/* For mobile responsiveness */
@media (width < 768px) {
  .gallery-nav {
    position: relative !important;
    left: 0 !important;
    right: 0 !important;
    transform: translateY(0) !important;
  }

  .gallery-wrapper {
    padding-bottom: 1rem;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .content {
    padding-left: 20px;
    padding-right: 20px;
  }
}