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

body {
  font-family: Georgia, serif !important;
  font-size: 18px;
  line-height: 1.6;
  color: #e0e6eb;
  background-color: #101720;
  text-align: left;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: Georgia, serif !important;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 0.75em;
  text-align: center;
}

p,
li {
  margin-bottom: 1em;
  text-align: left !important;
}

.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
}

header {
  background: linear-gradient(180deg, #002346, #004e9c);
  padding: 10px 0;
  position: relative;
  z-index: 1000;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 100%;
  padding: 0 20px;
  position: relative;
}

.site-nav .logo img {
  height: 40px;
  width: auto;
}

.site-nav input#nav-toggle {
  display: none;
}

.site-nav label.hamburger {
  display: none;
  font-size: 28px;
  color: #f0fff0;
  cursor: pointer;
}

.site-nav ul.menu {
  list-style: none;
  display: flex;
  gap: 20px;
}

.site-nav ul.menu li {
  position: relative;
}

.site-nav ul.menu li a {
  text-decoration: none;
  color: #f0fff0;
  font-size: 18px;
  padding: 10px;
  display: block;
  white-space: nowrap;
}

.site-nav ul.menu li a:hover {
  color: #aacfb8;
}

.site-nav ul.menu .submenu,
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #004e9c;
  padding: 8px 12px;
  list-style: none;
}

.site-nav ul.menu li:hover > .submenu,
.dropdown:hover .dropdown-content {
  display: block;
}

.site-nav ul.menu .submenu li a,
.dropdown-content li a {
  color: #f0fff0;
  padding: 8px 12px;
  display: block;
}

.site-nav ul.menu .submenu li a:hover,
.dropdown-content li a:hover {
  background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
  .site-nav label.hamburger {
    display: block;
    z-index: 1001;
  }

  .site-nav ul.menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: 240px;
    height: 100vh;
    background: linear-gradient(180deg, #002346, #004e9c);
    transform: translateX(100%);
    transition: transform 0.3s ease-out;
    margin: 0;
    padding-top: 60px;
    z-index: 9999;
  }

  .site-nav input#nav-toggle:checked ~ ul.menu {
    transform: translateX(0);
  }

  .site-nav ul.menu li a {
    white-space: normal;
    word-break: break-word;
    text-align: center;
    padding: 12px;
    color: #fff;
  }

  .site-nav ul.menu li.dropdown:hover > .submenu {
    display: none !important;
  }

  .site-nav ul.menu li.dropdown.open > .submenu {
    display: flex !important;
    flex-direction: column;
    position: static;
    background: #003870;
    padding-left: 1rem;
  }
}

#transition-overlay {
  position: fixed;
  inset: 0;
  background: #101720;
  z-index: 999;
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  pointer-events: none;
}

main {
  padding: 20px;
}

.content {
  width: 95% !important;
  max-width: 1200px !important;
  margin: 40px auto;
  padding: 20px;
  background: rgba(25, 34, 45, 0.9);
  border-radius: 8px;
  text-align: left;
  box-sizing: border-box;
  position: relative;
}

.content[style] {
  width: auto !important;
}

.content > div[style] {
  padding: 0 !important;
}

.content img,
.content .model-container img,
.content model-viewer {
  max-width: 100% !important;
  height: auto !important;
}

.btn--nav {
  background: #0d47a1;
  color: #e0e6eb;
  text-transform: uppercase;
  font-size: 18px;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: block;
  margin: 20px auto;
}

.btn--nav:hover {
  background: #1976d2;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.btn-flip {
  position: relative;
  width: 150px;
  line-height: 40px;
  font-size: 11px;
  text-transform: uppercase;
  border: 1px solid #2a3c2e;
  color: #e0e6eb;
  overflow: hidden;
  cursor: pointer;
  transition: 0.5s;
  display: block;
  margin: 20px auto;
}

.btn-flip::before,
.btn-flip::after {
  content: attr(data-front);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #004488;
  backface-visibility: hidden;
  transition: transform 0.5s;
}

.btn-flip::after {
  content: attr(data-back);
  background: #003870;
  transform: translateY(-100%) rotateX(90deg);
}

.btn-flip:hover::before {
  transform: translateY(100%) rotateX(90deg);
}

.btn-flip:hover::after {
  transform: translateY(0) rotateX(0);
}

.glow-on-hover {
  position: relative;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  background: #0d47a1;
  color: #e0e6eb;
  cursor: pointer;
  overflow: hidden;
  display: block;
  margin: 20px auto;
  transition: background 0.3s;
}

.glow-on-hover::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.3),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s;
}

.glow-on-hover:hover {
  background: #1976d2;
}

.glow-on-hover:hover::before {
  opacity: 1;
}

.search-section {
  margin: 40px auto;
  max-width: 800px;
  padding: 20px;
  background: rgba(25, 34, 45, 0.9);
  border-radius: 8px;
  text-align: left;
  color: #e0e6eb;
}

.search-section label {
  font-size: 24px;
  color: #e0e6eb;
  display: block;
  margin-bottom: 12px;
}

.search-section input[type="text"] {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #475569;
  border-radius: 4px;
  margin-bottom: 12px;
  background: #14283f;
  color: #e0e6eb;
}

.search-section button#searchButton {
  padding: 10px 20px;
  font-size: 16px;
  background: #1976d2;
  color: #e0e6eb;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

.search-section button#searchButton:hover {
  background: #0d47a1;
}

#result,
#articleContent {
  display: none;
  font-size: 16px;
  background: rgba(25, 34, 45, 0.9);
  border-radius: 8px;
  padding: 15px;
  margin: 20px auto;
  width: 80%;
  max-height: 300px;
  overflow-y: auto;
  color: #e0e6eb;
  text-align: left;
  box-sizing: border-box;
}

#resultHeading,
#articleHeading {
  font-size: 20px;
  margin-top: 20px;
  color: #ffffff;
  text-align: left;
}

#scrollToTop {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(45deg, #1976d2, #0d47a1);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#scrollToTop.show {
  display: flex;
  opacity: 0.9;
}

#scrollToTop:hover {
  transform: translateY(-6px);
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .content {
    padding: 16px;
  }
  .site-nav ul.menu {
    width: 100%;
  }
  .search-section {
    padding: 16px;
  }
}

footer {
  background: #001f3f;
  padding: 8px 0;
  text-align: center;
  color: #ccc;
  font-size: 12px;
  margin-top: 20px;
}

footer p {
  margin: 0;
  line-height: 1.4;
  text-align: center;
}

.modelsite {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
}

.modelsite iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

a {
  color: white;
}