/* ========================================
   CSS Variables - Easy to customize
   ======================================== */
:root {
  /* Colors */
  --primary-gradient: linear-gradient(135deg, #002773 0%, #001a4d 100%);
  --primary-color: #002773;
  --primary-dark: #001a4d;
  --text-color: #333;
  --text-light: #555;
  --bg-color: #f4f4f4;
  --white: #fff;
  --border-color: #e0e0e0;
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.2);
  --shadow-button: 0 4px 15px rgba(0, 39, 115, 0.3);
  --shadow-button-hover: 0 6px 20px rgba(0, 39, 115, 0.5);
  
  /* Spacing */
  --border-radius: 10px;
  --border-radius-full: 50px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Typography */
  --font-size-base: 1.1rem;
  --font-size-h1: 3rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.8rem;
  
  /* Transitions */
  --transition-base: 0.3s ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
}

/* ========================================
   Header
   ======================================== */
header {
  background: var(--primary-gradient);
  color: var(--white);
  padding: var(--spacing-md) 0;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative; /* For absolute positioning of lang switch */
}

header h1 {
  font-size: var(--font-size-h1);
  letter-spacing: 3px;
  font-weight: 300;
}

/* Language Switcher */
.lang-switch {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  display: flex;
  gap: 0.5rem;
}

.lang-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--white);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.4);
}

.lang-btn.active {
  background: var(--white);
  color: var(--primary-color);
  font-weight: bold;
}

.price-list {
  margin: 10px 0 15px 20px;
  list-style-type: disc;
  text-align: left;
}

.price-list li {
  margin-bottom: 5px;
}

/* Contact Info */
.contact-info {
  margin-top: var(--spacing-sm);
}

.contact-info a {
  color: var(--white);
  text-decoration: none;
  font-size: var(--font-size-base);
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.15);
  transition: background var(--transition-base);
  display: inline-block;
  margin: 0 0.5rem; /* Add margin for spacing */
}

.contact-info a:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ========================================
   Main Content
   ======================================== */
main {
  max-width: 1200px;
  margin: var(--spacing-md) auto;
  padding: 0 var(--spacing-md);
}

section {
  margin-bottom: var(--spacing-xl);
}

section h2 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-md);
  text-align: center;
  color: var(--primary-color);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

/* ========================================
   About Section
   ======================================== */
.about-section {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-lg);
  align-items: start;
  margin-top: var(--spacing-md);
}

.about-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.about-text h3 {
  font-size: var(--font-size-h3);
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.about-text p {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 1.2rem;
}

/* ========================================
   Navigation Buttons
   ======================================== */
.gallery-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
}

.nav-button {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--primary-color);
  text-decoration: none;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: 400;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.nav-button:hover {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

/* Back Link */
.back-link {
  margin-bottom: var(--spacing-md);
  padding-left: 1.5rem; /* Indent from left */
}

.back-link a {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  font-size: 1.1rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--primary-color);
  border-radius: 4px; /* Match lang-btn radius */
  transition: all var(--transition-base);
}

.back-link a:hover {
  background: var(--primary-color);
  color: var(--white);
}

/* ========================================
   Gallery
   ======================================== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  padding: var(--spacing-sm) 0;
  max-width: 1000px;
  margin: 0 auto;
}

.gallery-caption {
  text-align: center;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: italic;
}

.gallery a {
  display: block;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  aspect-ratio: 1 / 1;
  max-width: 350px;
  margin: 0 auto;

}

.gallery a:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
  background: var(--border-color); /* Placeholder while loading */
}

.gallery a:hover img {
  transform: scale(1.1);
}

/* Loading placeholder for images */
img[loading="lazy"] {
  background-color: var(--border-color);
  background: linear-gradient(
    90deg,
    var(--border-color) 25%,
    #f0f0f0 50%,
    var(--border-color) 75%
  );
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========================================
   Lightbox
   ======================================== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  overflow: hidden;
  touch-action: none; /* Disable browser's default touch handling */
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: var(--border-radius);
  box-shadow: 0 0 50px rgba(255, 255, 255, 0.1);
  transform-origin: center center;
  transition: transform 0.1s ease-out;
  touch-action: none;
  user-select: none;
  -webkit-user-drag: none;
  /* Safari GPU acceleration fixes */
  will-change: transform;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* Lightbox Controls */
.lightbox .close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  color: var(--white);
  font-size: 3rem;
  text-decoration: none;
  font-weight: 300;
  transition: color var(--transition-base), opacity var(--transition-base);
  line-height: 1;
  z-index: 10;
  touch-action: auto;
}

.lightbox .close:hover {
  color: var(--primary-color);
}

/* Hide close button when zoomed */
.lightbox.zoomed .close {
  opacity: 0;
  pointer-events: none;
}

.lightbox .prev,
.lightbox .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--white);
  font-size: 3rem;
  text-decoration: none;
  padding: var(--spacing-sm) 1.5rem;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 5px;
  transition: background var(--transition-base), opacity var(--transition-base);
  user-select: none;
  z-index: 10;
  touch-action: auto;
}

/* Hide nav buttons when zoomed */
.lightbox.zoomed .prev,
.lightbox.zoomed .next {
  opacity: 0;
  pointer-events: none;
}

.lightbox .prev {
  left: var(--spacing-md);
}

.lightbox .next {
  right: var(--spacing-md);
}

.lightbox .prev:hover,
.lightbox .next:hover {
  background: rgba(0, 39, 115, 0.8);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
  :root {
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --font-size-h3: 1.5rem;
    --font-size-base: 1rem;
  }

  .gallery {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
  }

  .lightbox .close,
  .lightbox .prev,
  .lightbox .next {
    font-size: 2rem;
  }

  .lightbox .close {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }

  .lightbox .prev,
  .lightbox .next {
    padding: 0.5rem var(--spacing-sm);
  }

  .lightbox .prev {
    left: 0.5rem;
  }

  .lightbox .next {
    right: 0.5rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    order: 1;
  }

  .gallery-nav {
    gap: var(--spacing-sm);
    order: 2;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
    margin-top: 0;
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
  }

  .nav-button {
    padding: 0.8rem 1.8rem;
    font-size: 1rem;
  }

  .lang-switch {
    position: static;
    justify-content: center;
    margin-bottom: 1rem;
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr;
  }

  main {
    padding: 0 var(--spacing-sm);
  }
}