/* Hero Overlay */
.hero-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: 9999;
  opacity: 1;
  transition: opacity 1s ease-out, transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform, opacity;
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* Hide overlay immediately for returning users to prevent flash */
.hero-overlay.hide-immediately {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
}

/* Ensure main content is visible when overlay is hidden immediately */
.hero-overlay.hide-immediately ~ .main-content-wrapper,
.hero-overlay.hide-immediately + .main-content-wrapper {
  transform: translateY(0) translateZ(0) !important;
  transition: none !important;
}

/* Hide overlay immediately when user has seen it before */
html.overlay-seen .hero-overlay {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
}

/* Ensure main content is visible when overlay is hidden */
html.overlay-seen .main-content-wrapper {
  transform: translateY(0) translateZ(0) !important;
  transition: none !important;
}

/* Hide overlay on mobile devices */
@media (max-width: 767px) {
  .hero-overlay {
    display: none !important;
  }
  
  .main-content-wrapper {
    transform: translateY(0) translateZ(0) !important;
  }
}

/* Ensure main content is visible for returning users (when overlay is hidden) */
.hero-overlay[style*="display: none"] ~ .main-content-wrapper,
.hero-overlay[style*="display: none"] + .main-content-wrapper {
  transform: translateY(0) translateZ(0) !important;
}

.hero-overlay.fade-out {
  opacity: 0;
}

.hero-overlay.scroll-out {
  opacity: 0;
  transform: translateY(-100%) translateZ(0);
}

/* Main page content that slides up with overlay */
.main-content-wrapper {
  position: relative;
  z-index: 1;
  transform: translateY(100vh) translateZ(0);
  transition: transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
  backface-visibility: hidden;
  perspective: 1000px;
}

.main-content-wrapper.reveal {
  transform: translateY(0) translateZ(0);
}

/* Ensure smooth scrolling after reveal */
html {
  scroll-behavior: smooth;
}

/* Prevent body scrolling when overlay is visible */
body.overlay-visible {
  overflow: hidden;
  position: fixed;
  width: 100%;
  scrollbar-gutter: stable;
  background-color: #193442;
}

/* Re-enable scrolling when overlay is gone */
body.overlay-hidden {
  overflow: auto;
  position: static;
  scrollbar-gutter: stable;
  background-color: #193442;
}

/* Ensure scrollbar space is reserved even when overlay is visible */
html {
  scrollbar-gutter: stable;
  background-color: #193442;
}

.hero-overlay-image {
  width: 100%;
  height: 100%;
  background-image: url('../images/truck.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 100vw;
  padding: 0 20px;
  box-sizing: border-box;
  z-index: 10000;
  text-align: center;
  pointer-events: auto;
}

.overlay-title {
  font-size: 6.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 2rem;
  text-shadow: 0 4px 12px rgba(0,0,0,0.3);
  opacity: 1;
  transform: translateY(0);
  transition: all 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
  /* Ensure text doesn't overflow on smaller screens */
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Responsive font sizing to prevent overflow */
@media (max-width: 1200px) {
  .overlay-title {
    font-size: 5.5rem;
  }
}

@media (max-width: 900px) {
  .overlay-title {
    font-size: 4.5rem;
  }
}

@media (max-width: 600px) {
  .overlay-title {
    font-size: 3.5rem;
  }
}

.overlay-number {
  display: inline-block;
  opacity: 0;
  transition: opacity 1.8s cubic-bezier(0.22, 0.61, 0.36, 1);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
}

.overlay-number.fade-in {
  opacity: 1;
}

.overlay-word {
  display: inline-block;
  margin-left: 0.5rem;
  opacity: 0;
  transition: opacity 2.2s cubic-bezier(0.22, 0.61, 0.36, 1);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
}

.overlay-word.fade-in {
  opacity: 1;
}

.overlay-button {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: #0d2f4f;
  color: white;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1.2s cubic-bezier(0.22, 0.61, 0.36, 1), transform 1.2s cubic-bezier(0.22, 0.61, 0.36, 1), background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.overlay-button.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.overlay-button:hover {
  background-color: #1a4b7a;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.3);
}

.overlay-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Scroll Indicator */
.overlay-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
  z-index: 10000;
}

.overlay-scroll-indicator.fade-in {
  opacity: 1;
}

.scroll-arrow {
  animation: bounce 2s infinite;
  cursor: pointer;
}

.scroll-text {
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  opacity: 0.8;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}