/* UI Enhancements v2 - Advanced Frontend Polish for Interline Asia */

/* ===========================================
   STICKY NAVIGATION WITH SCROLL EFFECTS
   =========================================== */

.main-nav,
.luxury-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1000 !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
}

/* Enhanced scroll effect for navigation */
.nav-scrolled {
    background: rgba(15, 23, 42, 0.98) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.luxury-header.nav-scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* Ensure content doesn't hide behind sticky nav */
body {
    padding-top: 0 !important;
}

.hero-section,
.dashboard-main,
.booking-container,
.quote-container,
.track-container,
.auth-container,
.content-section {
    margin-top: 120px !important;
}

/* Travel tools bar adjustment */
.travel-tools-header,
.luxury-tools-bar {
    position: fixed !important;
    top: 80px !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 999 !important;
    transition: all 0.3s ease !important;
}

.travel-tools-scrolled {
    transform: translateY(-100%) !important;
    opacity: 0 !important;
}

/* ===========================================
   SMOOTH SCROLL BEHAVIOR
   =========================================== */

html {
    scroll-behavior: smooth !important;
}

/* Scroll padding for anchor links */
:target {
    scroll-margin-top: 140px !important;
}

/* ===========================================
   IMAGE PERFORMANCE ENHANCEMENTS
   =========================================== */

/* Responsive image containers */
.responsive-image-container {
    position: relative !important;
    overflow: hidden !important;
    border-radius: 8px !important;
}

.responsive-image-container img {
    width: 100% !important;
    height: auto !important;
    transition: transform 0.3s ease !important;
}

.responsive-image-container:hover img {
    transform: scale(1.05) !important;
}

/* Cruise logo optimization */
.partner-logo img,
.cruise-logo {
    object-fit: contain !important;
    max-width: 100% !important;
    height: auto !important;
    transition: opacity 0.3s ease !important;
}

.partner-logo img:hover {
    opacity: 0.8 !important;
}

/* ===========================================
   ENHANCED VISUAL FEEDBACK
   =========================================== */

/* Loading states for images */
img[loading="lazy"] {
    opacity: 0 !important;
    transition: opacity 0.3s ease !important;
}

img[loading="lazy"].loaded {
    opacity: 1 !important;
}

/* Skeleton loading for images */
.image-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%) !important;
    background-size: 200% 100% !important;
    animation: loading 1.5s infinite !important;
    border-radius: 8px !important;
}

/* ===========================================
   CROSS-PAGE NAVIGATION ENHANCEMENTS
   =========================================== */

/* Enhanced internal link styling */
.internal-link {
    color: #0a3d62 !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    transition: all 0.2s ease !important;
    position: relative !important;
}

.internal-link::after {
    content: '' !important;
    position: absolute !important;
    bottom: -2px !important;
    left: 0 !important;
    width: 0 !important;
    height: 2px !important;
    background: linear-gradient(135deg, #0a3d62, #192a56) !important;
    transition: width 0.3s ease !important;
}

.internal-link:hover::after {
    width: 100% !important;
}

.internal-link:hover {
    color: #192a56 !important;
}

/* Call-to-action link styling */
.cta-link {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    padding: 0.5rem 1rem !important;
    background: rgba(10, 61, 98, 0.1) !important;
    border: 1px solid rgba(10, 61, 98, 0.2) !important;
    border-radius: 6px !important;
    color: #0a3d62 !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
}

.cta-link:hover {
    background: rgba(10, 61, 98, 0.15) !important;
    border-color: rgba(10, 61, 98, 0.3) !important;
    transform: translateY(-1px) !important;
}

/* ===========================================
   RESPONSIVE BREAKPOINT OPTIMIZATIONS
   =========================================== */

/* Mobile optimizations */
@media (max-width: 768px) {
    .hero-section,
    .dashboard-main,
    .booking-container,
    .quote-container,
    .track-container,
    .auth-container,
    .content-section {
        margin-top: 140px !important;
    }
    
    .main-nav,
    .luxury-header {
        height: auto !important;
        min-height: 80px !important;
    }
    
    .travel-tools-header,
    .luxury-tools-bar {
        top: auto !important;
        position: relative !important;
    }
    
    /* Simplified mobile navigation */
    .nav-scrolled {
        background: rgba(15, 23, 42, 0.95) !important;
    }
}

/* Tablet optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .deals-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.5rem !important;
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

/* Desktop optimizations */
@media (min-width: 1025px) {
    .deals-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
    
    .partners-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }
}

/* Ultrawide optimizations */
@media (min-width: 1440px) {
    .deals-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }
    
    .partners-grid {
        grid-template-columns: repeat(5, 1fr) !important;
    }
    
    .section-container,
    .dashboard-container,
    .main-content {
        max-width: 1400px !important;
    }
}

/* ===========================================
   LAYOUT STABILITY IMPROVEMENTS
   =========================================== */

/* Prevent layout shifts */
.deal-card,
.booking-card,
.dashboard-card,
.quote-card {
    min-height: 300px !important;
    contain: layout !important;
}

.partner-logo {
    min-height: 120px !important;
    contain: layout !important;
}

/* Image aspect ratio containers */
.aspect-ratio-container {
    position: relative !important;
    width: 100% !important;
    height: 0 !important;
    overflow: hidden !important;
}

.aspect-ratio-16-9 {
    padding-bottom: 56.25% !important;
}

.aspect-ratio-4-3 {
    padding-bottom: 75% !important;
}

.aspect-ratio-1-1 {
    padding-bottom: 100% !important;
}

.aspect-ratio-container img {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}

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

/* Fade in animation for content */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out !important;
}

/* Stagger animation for cards */
.deal-card:nth-child(1) { animation-delay: 0.1s !important; }
.deal-card:nth-child(2) { animation-delay: 0.2s !important; }
.deal-card:nth-child(3) { animation-delay: 0.3s !important; }
.deal-card:nth-child(4) { animation-delay: 0.4s !important; }

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

/* GPU acceleration for smooth animations */
.deal-card,
.booking-card,
.dashboard-card,
.btn-primary,
.btn-secondary {
    will-change: transform !important;
    transform: translateZ(0) !important;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===========================================
   PRINT OPTIMIZATIONS
   =========================================== */

@media print {
    .main-nav,
    .luxury-header,
    .travel-tools-header,
    .luxury-tools-bar,
    #chatbot-container {
        display: none !important;
    }
    
    .hero-section,
    .dashboard-main,
    .booking-container,
    .quote-container,
    .track-container,
    .auth-container,
    .content-section {
        margin-top: 0 !important;
    }
    
    .deal-card,
    .booking-card,
    .dashboard-card {
        break-inside: avoid !important;
        page-break-inside: avoid !important;
    }
}