/**
 * Premium Index Page Enhancements - Luxury Tourism Theme
 * Typography & Color Refinements + Enhanced Animations
 * Shans Lanka Travels - Elevated Premium Experience
 * Add this to your index.css file or create as premium-index.css
 */

/* ==================== PREMIUM TYPOGRAPHY SYSTEM ==================== */

/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&family=Crimson+Text:ital,wght@0,400;0,600;1,400&display=swap');

/* Enhanced Typography Variables */
:root {
  /* Premium Font Stack */
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent: 'Crimson Text', Georgia, serif;
  
  /* Refined Color Palette - Luxury Tourism */
  --luxury-navy: #0F1B3C;
  --luxury-navy-light: #1A2B5C;
  --luxury-navy-rgb: 15, 27, 60;
  
  --luxury-gold: #C9A96E;
  --luxury-gold-bright: #D4AF37;
  --luxury-gold-deep: #B8941F;
  --luxury-gold-rgb: 201, 169, 110;
  
  --premium-white: #FEFEFE;
  --premium-cream: #FAF9F6;
  --premium-pearl: #F8F6F0;
  
  --elegant-gray: #6B7280;
  --elegant-gray-light: #9CA3AF;
  --elegant-gray-dark: #4B5563;
  
  --luxury-emerald: #047857;
  --luxury-emerald-light: #065F46;
  
  /* Premium Gradients */
  --gradient-luxury: linear-gradient(135deg, var(--luxury-navy) 0%, var(--luxury-navy-light) 50%, var(--luxury-gold) 100%);
  --gradient-elegance: linear-gradient(45deg, var(--luxury-gold) 0%, var(--luxury-gold-bright) 50%, var(--luxury-gold-deep) 100%);
  --gradient-royal: linear-gradient(135deg, var(--luxury-navy) 0%, var(--luxury-emerald) 100%);
  --gradient-sunset: linear-gradient(135deg, var(--luxury-gold-bright) 0%, #FF6B6B 50%, #4ECDC4 100%);
  --gradient-pearl: linear-gradient(135deg, var(--premium-white) 0%, var(--premium-pearl) 100%);
  
  /* Enhanced Shadows */
  --shadow-luxury: 0 20px 60px rgba(var(--luxury-navy-rgb), 0.12);
  --shadow-premium: 0 10px 40px rgba(var(--luxury-navy-rgb), 0.08);
  --shadow-elegant: 0 5px 25px rgba(var(--luxury-navy-rgb), 0.06);
  --shadow-gold: 0 8px 32px rgba(var(--luxury-gold-rgb), 0.15);
  
  /* Premium Transitions */
  --transition-luxury: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-elegant: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== ENHANCED BODY & BASE STYLES ==================== */

body {
  font-family: var(--font-body) !important;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.7;
  color: var(--luxury-navy);
  background: var(--premium-white);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Premium Selection Styling */
::selection {
  background: rgba(var(--luxury-gold-rgb), 0.2);
  color: var(--luxury-navy);
}

/* ==================== PREMIUM LOADING OVERLAY ==================== */

#loading-overlay {
  background: linear-gradient(135deg, 
    rgba(15, 27, 60, 0.95) 0%, 
    rgba(26, 43, 92, 0.92) 50%, 
    rgba(201, 169, 110, 0.95) 100%) !important;
  backdrop-filter: blur(20px) !important;
}

.loading-text {
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  font-size: 1.75rem !important;
  background: linear-gradient(45deg, var(--premium-white), var(--luxury-gold-bright)) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  letter-spacing: 0.02em !important;
}

.loading-tip {
  font-family: var(--font-accent) !important;
  font-style: italic !important;
  color: rgba(255, 255, 255, 0.8) !important;
  font-size: 1.1rem !important;
}

/* ==================== ENHANCED MAIN CONTENT ANIMATIONS ==================== */

#main-content {
  opacity: 0;
  transform: translateY(40px);
  transition: var(--transition-luxury);
}

#main-content.ready {
  opacity: 1;
  transform: translateY(0);
}

/* Section Animations */
#main-content .section {
  opacity: 0;
  transform: translateY(60px);
  transition: var(--transition-luxury);
}

#main-content .section.section-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered Animation Delays */
#main-content .section:nth-child(1) { transition-delay: 0.1s; }
#main-content .section:nth-child(2) { transition-delay: 0.2s; }
#main-content .section:nth-child(3) { transition-delay: 0.3s; }
#main-content .section:nth-child(4) { transition-delay: 0.4s; }
#main-content .section:nth-child(5) { transition-delay: 0.5s; }

/* ==================== PREMIUM HERO SECTION ==================== */

#hero-slider-container {
  position: relative;
  overflow: hidden;
  background: var(--gradient-luxury);
}

/* Enhanced Hero Content Styling */
.hero-slide {
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(var(--luxury-navy-rgb), 0.7) 0%,
    rgba(var(--luxury-navy-rgb), 0.4) 40%,
    rgba(var(--luxury-gold-rgb), 0.3) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 4rem 0;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.2;
  color: var(--premium-white);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 20px rgba(var(--luxury-navy-rgb), 0.3);
  opacity: 0;
  transform: translateY(40px);
  animation: heroTitleReveal 1.2s var(--transition-elegant) 0.5s forwards;
}

.hero-subtitle {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  opacity: 0;
  transform: translateY(30px);
  animation: heroSubtitleReveal 1s var(--transition-elegant) 0.8s forwards;
}

.hero-cta {
  background: var(--gradient-elegance);
  color: var(--luxury-navy);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  border: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-gold);
  transition: var(--transition-elegant);
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  animation: heroCTAReveal 0.8s var(--transition-elegant) 1.1s forwards;
}

.hero-cta:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-luxury);
  color: var(--luxury-navy);
  text-decoration: none;
}

/* Hero Animations */
@keyframes heroTitleReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroSubtitleReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroCTAReveal {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==================== PREMIUM SECTION STYLING ==================== */

/* About Sri Lanka Section */
#about-srilanka-container {
  background: var(--gradient-pearl);
  padding: 6rem 0;
  position: relative;
}

#about-srilanka-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-elegance);
}

/* Featured Packages Section */
#featured-packages-container {
  background: var(--premium-white);
  padding: 6rem 0;
  position: relative;
}

/* Destinations Section */
#destinations-container {
  background: linear-gradient(135deg, var(--premium-cream) 0%, var(--premium-pearl) 100%);
  padding: 6rem 0;
}

/* Testimonials Section */
#testimonials-container {
  background: var(--gradient-luxury);
  color: var(--premium-white);
  padding: 6rem 0;
  position: relative;
}

#testimonials-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.6;
  pointer-events: none;
}

/* ==================== ENHANCED TYPOGRAPHY ==================== */

/* Section Headings */
.section h2,
.section h3,
h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--luxury-navy);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  position: relative;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.section h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

/* Testimonials Section Typography */
#testimonials-container h2,
#testimonials-container h3 {
  color: var(--premium-white);
}

/* Elegant Underlines for Headings */
.section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--gradient-elegance);
  border-radius: 2px;
}

/* Body Text Enhancement */
.section p,
p {
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--elegant-gray);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

/* Lead Text */
.lead {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--elegant-gray-dark);
  line-height: 1.6;
}

/* ==================== PREMIUM CARD ANIMATIONS ==================== */

/* Package Cards */
.package-card,
.destination-card,
.testimonial-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-elegant);
  transition: var(--transition-luxury);
  opacity: 0;
  transform: translateY(40px);
  background: var(--premium-white);
  border: 1px solid rgba(var(--luxury-gold-rgb), 0.1);
}

.package-card.animate-in,
.destination-card.animate-in,
.testimonial-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.package-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-luxury);
  border-color: rgba(var(--luxury-gold-rgb), 0.3);
}

.destination-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-premium);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 60px rgba(255, 255, 255, 0.1);
}

/* Card Content Typography */
.card-title,
.package-title,
.destination-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--luxury-navy);
  line-height: 1.4;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.card-text,
.package-description,
.destination-description {
  font-family: var(--font-body);
  color: var(--elegant-gray);
  line-height: 1.6;
  font-size: 1rem;
}

/* ==================== PREMIUM BUTTONS ==================== */

.btn-primary,
.btn-book-now,
.cta-btn {
  background: var(--gradient-elegance);
  border: none;
  color: var(--luxury-navy);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  transition: var(--transition-elegant);
  box-shadow: var(--shadow-elegant);
  position: relative;
  overflow: hidden;
}

.btn-primary::before,
.btn-book-now::before,
.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.btn-primary:hover::before,
.btn-book-now:hover::before,
.cta-btn:hover::before {
  left: 100%;
}

.btn-primary:hover,
.btn-book-now:hover,
.cta-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-gold);
  color: var(--luxury-navy);
  text-decoration: none;
}

/* Secondary Button Style */
.btn-secondary,
.btn-outline {
  background: transparent;
  border: 2px solid var(--luxury-gold);
  color: var(--luxury-gold);
  font-family: var(--font-body);
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  transition: var(--transition-elegant);
}

.btn-secondary:hover,
.btn-outline:hover {
  background: var(--luxury-gold);
  color: var(--luxury-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
  text-decoration: none;
}

/* ==================== ENHANCED ANIMATIONS ==================== */

/* Fade In Animation */
.fade-in-up {
  opacity: 0;
  transform: translateY(60px);
  transition: var(--transition-luxury);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Scale In Animation */
.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-elegant);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Slide In Animations */
.slide-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: var(--transition-luxury);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: var(--transition-luxury);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Floating Animation */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating {
  animation: float 6s ease-in-out infinite;
}

/* Shimmer Effect for Loading States */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.shimmer {
  background: linear-gradient(90deg, 
    var(--premium-cream) 25%, 
    var(--premium-white) 50%, 
    var(--premium-cream) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ==================== PARALLAX EFFECTS ==================== */

.parallax {
  transform: translateZ(0);
  transition: transform 0.1s ease-out;
}

/* ==================== PREMIUM HOVER EFFECTS ==================== */

/* Image Hover Effects */
.premium-image {
  overflow: hidden;
  border-radius: 15px;
  transition: var(--transition-elegant);
}

.premium-image img {
  transition: var(--transition-luxury);
  filter: brightness(1) saturate(1);
}

.premium-image:hover img {
  transform: scale(1.08);
  filter: brightness(1.1) saturate(1.2);
}

/* Text Hover Effects */
.premium-link {
  color: var(--luxury-navy);
  text-decoration: none;
  position: relative;
  transition: var(--transition-smooth);
}

.premium-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-elegance);
  transition: width 0.3s ease;
}

.premium-link:hover::after {
  width: 100%;
}

.premium-link:hover {
  color: var(--luxury-gold);
  text-decoration: none;
}

/* ==================== ENHANCED TESTIMONIALS ==================== */

.testimonial-quote {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  padding: 0 2rem;
}

.testimonial-quote::before,
.testimonial-quote::after {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--luxury-gold);
  position: absolute;
  line-height: 1;
}

.testimonial-quote::before {
  content: '"';
  top: -0.5rem;
  left: 0;
}

.testimonial-quote::after {
  content: '"';
  bottom: -1rem;
  right: 0;
}

.testimonial-author {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--luxury-gold);
  margin-top: 2rem;
  font-size: 1.1rem;
}

/* ==================== ENHANCED PRICING ==================== */

.price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--luxury-gold);
  line-height: 1;
}

.price-currency {
  font-size: 1.2rem;
  vertical-align: super;
}

.price-period {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--elegant-gray);
  margin-left: 0.5rem;
}

/* ==================== RESPONSIVE ENHANCEMENTS ==================== */

@media (max-width: 768px) {
  /* Mobile Typography Adjustments */
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .section h2 {
    font-size: 2rem;
  }
  
  .section p {
    font-size: 1rem;
  }
  
  /* Mobile Animation Optimizations */
  .package-card:hover,
  .destination-card:hover,
  .testimonial-card:hover {
    transform: translateY(-6px) scale(1.01);
  }
  
  /* Reduce motion for mobile performance */
  .floating {
    animation: none;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .section {
    padding: 4rem 0;
  }
}

/* ==================== REDUCED MOTION SUPPORT ==================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating {
    animation: none;
  }
  
  .parallax {
    transform: none !important;
  }
}

/* ==================== HIGH CONTRAST MODE ==================== */

@media (prefers-contrast: high) {
  :root {
    --luxury-navy: #000000;
    --elegant-gray: #333333;
    --luxury-gold: #FFD700;
  }
  
  .section h2::after {
    background: #FFD700;
  }
}

/* ==================== PRINT STYLES ==================== */

@media print {
  .hero-cta,
  .btn-primary,
  .btn-secondary {
    background: transparent !important;
    color: var(--luxury-navy) !important;
    border: 2px solid var(--luxury-navy) !important;
  }
  
  .section {
    break-inside: avoid;
  }
}

/* ==================== PERFORMANCE OPTIMIZATIONS ==================== */

/* Hardware acceleration for animations */
.package-card,
.destination-card,
.testimonial-card,
.hero-title,
.hero-subtitle,
.hero-cta {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* ==================== ACCESSIBILITY ENHANCEMENTS ==================== */

/* Focus indicators */
.btn-primary:focus,
.btn-secondary:focus,
.premium-link:focus {
  outline: 3px solid var(--luxury-gold);
  outline-offset: 3px;
}

/* Screen reader improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==================== SCROLL INDICATORS ==================== */

.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-elegance);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.1s ease;
  z-index: 9999;
}

/* ==================== END OF PREMIUM ENHANCEMENTS ==================== */