/* public/css/style.css */

/* Prevent zooming and enforce mobile responsiveness */
html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: #e4e4e7;
    background: #0a0a0b;
    overflow-x: hidden;
    /* Prevent pull-to-refresh and overscroll behaviors on mobile */
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
}

/* Mobile Optimization and Cache Prevention */
.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.mobile-optimized {
    /* Prevent zoom on input focus */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Force hardware acceleration for smoother animations */
.hardware-accelerated {
    -webkit-transform: translateZ(0);
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -o-transform: translateZ(0);
    transform: translateZ(0);
}

/* Prevent pull-to-refresh on mobile */
body {
    overscroll-behavior-y: contain;
    overscroll-behavior-x: none;
}

/* Fix for iOS Safari viewport issues */
@supports (-webkit-touch-callout: none) {
    .ios-viewport-fix {
        height: -webkit-fill-available;
    }
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: #f4f4f5;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1rem;
    color: #a1a1aa;
    font-weight: 400;
}

h3 {
    font-size: 1.25rem;
    color: #f4f4f5;
    margin-bottom: 1rem;
}

/* Header */
.header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    color: white;
    padding: 3rem 2rem 2rem;
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    overflow: hidden;
    transform: translateY(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.show {
    transform: translateY(0);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.header h1,
.header h2 {
    position: relative;
    z-index: 1;
}

.header h1 {
    color: white;
    margin-bottom: 0.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.header h2 {
    color: rgba(255, 255, 255, 0.8);
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
}

/* Main Container - Swipe Layout */
.swipe-container {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    height: 100vh;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.swipe-container::-webkit-scrollbar {
    display: none;
}

.swipe-panel {
    flex: 0 0 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    padding: 2rem;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
}

.nav-panel .nav-section,
.weather-panel .weather-section {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

/* Countdown */
.countdown {
    background: 
        linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%),
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    background-blend-mode: overlay;
    color: white;
    padding: 1.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 2rem;
    box-shadow: 
        0 8px 32px rgba(99, 102, 241, 0.3),
        0 4px 16px rgba(139, 92, 246, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.countdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
    z-index: 1;
}

.countdown > * {
    position: relative;
    z-index: 2;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Navigation Section */
.nav-section {
    background: #18181b;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-section h3 {
    margin-bottom: 1.5rem;
    color: #f4f4f5;
}

/* Navigation Panel Header */
.nav-header {
    margin-bottom: 0.75rem;
    text-align: center;
    position: relative;
}

.nav-header-content {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 100%),
        linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%),
        url('../images/header-bg.jpg') center/cover;
    background-blend-mode: multiply, overlay;
    border-radius: 0px;
    padding: 1.5rem 2rem;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.nav-header-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: 20px;
    z-index: 1;
}

.nav-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 0.5rem 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #ffffff 0%, #e4e4e7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    position: relative;
    z-index: 2;
    letter-spacing: 0.5px;
}

/* Modern Center-Focused Navigation */
.nav-modern-container {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    /* Improve rendering performance */
    transform: translateZ(0);
    backface-visibility: hidden;
}

.nav-scroll-area {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
    /* Temporarily disable scroll-snap to reduce conflicts with center focusing */
    /* scroll-snap-type: y mandatory; */
    scrollbar-width: none;
    -ms-overflow-style: none;
    position: relative;
    mask: linear-gradient(to bottom, 
        transparent 0%, 
        black 15%, 
        black 85%, 
        transparent 100%);
    -webkit-mask: linear-gradient(to bottom, 
        transparent 0%, 
        black 15%, 
        black 85%, 
        transparent 100%);
    /* Improve scrolling performance */
    -webkit-overflow-scrolling: touch;
    transform: translateZ(0); /* Force hardware acceleration */
}

.nav-scroll-area::-webkit-scrollbar {
    display: none;
}

.nav-spacer-top,
.nav-spacer-bottom {
    height: 150px;
    flex-shrink: 0;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 2rem;
    text-decoration: none;
    color: white;
    background-size: cover;
    background-position: center;
    border-radius: 16px;
    margin: 0.5rem 1rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2rem;
    font-weight: 300;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    opacity: 0.5;
    transform: scale(0.85) translateZ(0); /* Add translateZ for hardware acceleration */
    flex-shrink: 0;
    height: 140px;
    min-height: 140px;
    backdrop-filter: blur(10px);
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.9);
    scroll-snap-align: center;
    scroll-snap-stop: always;
    will-change: transform, opacity; /* Hint browser for better performance */
    letter-spacing: 0.5px;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
    z-index: 1;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Individual navigation item backgrounds - using local images */
.nav-item[href="Map.php"] {
    background-image: url('../images/nav/map.jpg');
}

.nav-item[href="Weather.php"] {
    background-image: url('../images/nav/weather.jpg');
}

.nav-item[href="Plan.php"] {
    background-image: url('../images/nav/plan.jpg');
}

.nav-item[href="Spending.php"] {
    background-image: url('../images/nav/spending.jpg');
}

.nav-item[href="PackingList.php"] {
    background-image: url('../images/nav/packinglist.jpg');
}

.nav-item[href="PersonalPack.php"] {
    background-image: url('../images/nav/personalpack.jpg');
}

.nav-item[href="Info.php"] {
    background-image: url('../images/nav/info.jpg');
}

.nav-item[href="https://photos.physx-cnh.com"] {
    background-image: url('../images/nav/gallery.jpg');
}

/* Text appears above the overlay */
.nav-item span {
    position: relative;
    z-index: 2;
}

/* Center item - normal scale (1.0) with enhanced visibility */
.nav-item.center-focused {
    color: #ffffff;
    background-blend-mode: multiply;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 
        0 16px 50px rgba(99, 102, 241, 0.5),
        0 8px 25px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transform: scale(1.0) translateZ(0);
    opacity: 1;
    font-weight: 400;
    z-index: 3;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.nav-item.center-focused::before {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2));
    animation: navCenterPulse 2s infinite;
}

@keyframes navCenterPulse {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.1; }
}

.nav-item:hover {
    color: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.3);
    opacity: 0.9;
    transform: scale(0.88);
}

.nav-item:hover::before {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3));
}

/* Weather Section */
.weather-section {
    background: #18181b;
    border-radius: 0px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.location-selector {
    margin-bottom:  0.5rem;
    padding: 0.25rem;
    background: 
        linear-gradient(135deg, rgba(30, 58, 138, 0.8) 0%, rgba(55, 48, 163, 0.8) 50%, rgba(88, 28, 135, 0.8) 100%),
        url('https://images.unsplash.com/photo-1559827260-dc66d52bef19?w=400&h=200&fit=crop&q=80') center/cover;
    background-blend-mode: multiply;
    border-radius: 0px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(30, 58, 138, 0.3);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.location-selector::before {
    content: 'Choose Destination';
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.location-buttons {
    display: flex;
    gap: 0.5rem; /* Reduced gap for 4 buttons */
    justify-content: center;
    margin-bottom: 1rem;
    flex-wrap: wrap; /* Allow wrapping on very small screens */
}

.location-btn {
    flex: 1;
    min-width: 60px; /* Minimum width to prevent too narrow buttons */
    min-height: 44px; /* Better touch target */
    padding: 0.75rem 0.5rem; /* Reduced horizontal padding for 4 buttons */
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px; /* Slightly more rounded */
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    color: #f4f4f5;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.8rem; /* Slightly smaller font for better fit */
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* Better easing */
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
}

.location-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.location-btn:hover::before {
    left: 100%;
}

.location-btn:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.location-btn.active {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.location-btn.active:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.5);
}

/* Forecast Cards */
.forecast-container {
    max-height: 600px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.forecast-container::-webkit-scrollbar {
    display: none;
}

.forecast-container::-webkit-scrollbar-track {
    background: #27272a;
    border-radius: 2px;
}

.forecast-container::-webkit-scrollbar-thumb {
    background: #52525b;
    border-radius: 2px;
}

.forecast-container::-webkit-scrollbar-thumb:hover {
    background: #71717a;
}

.forecast-grid {
    display: grid;
    gap: 0.75rem;
}

.forecast-card {
    background: linear-gradient(135deg, #27272a 0%, #1f1f23 100%);
    border-radius: 0px;
    padding: 0.75rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.forecast-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.forecast-card:hover::before {
    opacity: 1;
}

.forecast-card:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.forecast-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.forecast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.forecast-icon img {
    width: 60px;
    height: 60px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s ease;
}

.forecast-card:hover .forecast-icon img {
    transform: scale(1.1);
}

.forecast-temp {
    font-size: 2rem;
    font-weight: 100; /* Thin weight */
    color: #ffffff; /* White color */
    font-family: 'Montserrat', sans-serif;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8); /* Stronger shadow for better contrast */
    position: relative;
    z-index: 2;
}

.forecast-date {
    font-weight: 600;
    color: #f4f4f5;
    margin-bottom: 0.25rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    position: relative;
    z-index: 2;
}

.forecast-desc {
    color: #a1a1aa;
    font-size: 0.85rem;
    text-transform: capitalize;
    font-family: 'Open Sans', sans-serif;
    font-weight: 300;
    position: relative;
    z-index: 2;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: #a1a1aa;
    font-size: 0.9rem;
    background: #18181b;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .swipe-panel {
        padding: 1rem;
    }
    
    .header {
        padding: 2rem 1rem 1.5rem;
    }
    
    .nav-section,
    .weather-section {
        padding: 0.25rem;
    }
    
    .countdown {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    /* Navigation header mobile fixes */
    .nav-header {
        margin-bottom: 1rem;
    }
    
    .nav-header-content {
        padding: 1rem 1.5rem;
        border-radius: 16px;
    }
    
    .nav-title {
        font-size: 1.5rem;
    }
    
    .nav-subtitle {
        font-size: 0.8rem;
    }
    
    /* Navigation container mobile adjustments */
    .nav-modern-container {
        height: 400px;
    }
    
    .nav-spacer-top,
    .nav-spacer-bottom {
        height: 100px;
    }
    
    .nav-item {
        height: 120px;
        min-height: 120px;
        margin: 0.25rem 0.5rem;
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .swipe-indicator {
        font-size: 0.8rem;
        margin-top: 1.5rem;
    }
    
    /* Location buttons mobile optimization */
    .location-buttons {
        gap: 0.25rem; /* Even smaller gap on mobile for 4 buttons */
        margin-bottom: 1.5rem;
    }
    
    .location-btn {
        min-height: 48px; /* Larger touch target on mobile */
        font-size: 0.75rem; /* Smaller font on mobile for 4 buttons */
        padding: 0.85rem 0.5rem; /* Reduced horizontal padding */
    }
}

/* Desktop Responsive - Show both panels side by side on large screens */
@media (min-width: 1200px) {
    .swipe-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        overflow-x: visible;
        height: 100vh;
        padding: 2rem;
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .swipe-panel {
        flex: none;
        scroll-snap-align: none;
        padding: 0;
        display: block;
    }
    
    .nav-panel .nav-section,
    .weather-panel .weather-section {
        max-width: none;
    }
    
    .swipe-indicator {
        display: none;
    }
    
    .header {
        position: relative;
        transform: translateY(0);
        margin-bottom: 2rem;
    }
    
    .header.show {
        transform: translateY(0);
    }
}

/* Smooth animations */
* {
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

/* Weather-specific background images */
.forecast-card.weather-clear-sky {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/clear-sky.jpg') center/cover;
}

.forecast-card.weather-few-clouds {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/few-clouds.jpg') center/cover;
}

.forecast-card.weather-scattered-clouds {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/scattered-clouds.jpg') center/cover;
}

.forecast-card.weather-broken-clouds {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/broken-clouds.jpg') center/cover;
}

.forecast-card.weather-overcast-clouds {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/overcast-clouds.jpg') center/cover;
}

.forecast-card.weather-light-rain {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/light-rain.jpg') center/cover;
}

.forecast-card.weather-moderate-rain {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/moderate-rain.jpg') center/cover;
}

.forecast-card.weather-heavy-rain {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/heavy-rain.jpg') center/cover;
}

.forecast-card.weather-thunderstorm {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/thunderstorm.jpg') center/cover;
}

.forecast-card.weather-mist,
.forecast-card.weather-haze,
.forecast-card.weather-fog {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/weather/fog.jpg') center/cover;
}

/* Back Button Styles for Mobile */
.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 24px;
    font-weight: bold;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.back-button:hover,
.back-button:focus {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.05);
    color: white;
    text-decoration: none;
}

.back-button:active {
    transform: scale(0.95);
}

/* Ensure back button is accessible on mobile */
@media (max-width: 768px) {
    .back-button {
        width: 48px;
        height: 48px;
        top: 15px;
        left: 15px;
        font-size: 20px;
    }
}