/* Premium Animations & Mobile Enhancements */

/* ===== Smooth Animations ===== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(59, 130, 246, 0.6);
    }
}

/* ===== Skeleton Loaders ===== */
.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 0%,
        #e0e0e0 50%,
        #f0f0f0 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;
}

.skeleton-image {
    width: 100%;
    height: 200px;
}

/* ===== Button Interactions ===== */
.btn-premium {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-premium:active::before {
    width: 300px;
    height: 300px;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.btn-premium:active {
    transform: translateY(0);
}

/* ===== Card Hover Effects ===== */
.card-3d {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: translateY(-8px) rotateX(2deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ===== Smooth Scroll ===== */
html {
    scroll-behavior: smooth;
}

/* Scroll Snap for Mobile Carousels */
.snap-container {
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.snap-item {
    scroll-snap-align: center;
    scroll-snap-stop: always;
}

/* ===== Loading States ===== */
.loading-spinner {
    border: 3px solid rgba(59, 130, 246, 0.1);
    border-top-color: #3b82f6;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Touch Feedback ===== */
.touch-feedback {
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.2);
    transition: background-color 0.15s ease;
}

.touch-feedback:active {
    background-color: rgba(59, 130, 246, 0.1);
}

/* ===== Gradient Animations ===== */
.gradient-animate {
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===== Image Loading (Progressive) ===== */
.img-blur-up {
    filter: blur(10px);
    transition: filter 0.3s ease;
}

.img-blur-up.loaded {
    filter: blur(0);
}

/* ===== Parallax Effect ===== */
.parallax {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Mobile Optimizations ===== */
@media (max-width: 768px) {
    /* Reduce motion for better performance on mobile */
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }

    /* Optimize touch targets */
    button,
    a,
    input,
    select,
    textarea {
        min-height: 44px;
        min-width: 44px;
    }

    /* Prevent zoom on input focus */
    input,
    select,
    textarea {
        font-size: 16px !important;
    }

    /* Better scrolling */
    .overflow-x-auto {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .overflow-x-auto::-webkit-scrollbar {
        display: none;
    }
}

/* ===== Micro-interactions ===== */
.hover-lift {
    transition: transform 0.2s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform 0.2s ease;
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

/* ===== Success States ===== */
.success-checkmark {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: block;
    stroke-width: 3;
    stroke: #10b981;
    stroke-miterlimit: 10;
    box-shadow: inset 0px 0px 0px #10b981;
    animation: fill 0.4s ease-in-out 0.4s forwards, scale 0.3s ease-in-out 0.9s both;
}

@keyframes fill {
    100% {
        box-shadow: inset 0px 0px 0px 30px #10b981;
    }
}

@keyframes scale {
    0%, 100% {
        transform: none;
    }
    50% {
        transform: scale3d(1.1, 1.1, 1);
    }
}

/* ===== Focus Visible (Accessibility) ===== */
*:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ===== Safe Area for Notched Devices ===== */
@supports (padding: max(0px)) {
    .safe-top {
        padding-top: max(1rem, env(safe-area-inset-top));
    }
    
    .safe-bottom {
        padding-bottom: max(1rem, env(safe-area-inset-bottom));
    }
    
    .safe-left {
        padding-left: max(1rem, env(safe-area-inset-left));
    }
    
    .safe-right {
        padding-right: max(1rem, env(safe-area-inset-right));
    }
}

/* ===== Scroll Indicators ===== */
.scroll-indicator {
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.scroll-indicator.scrolled::after {
    transform: scaleX(1);
}

/* ===== Floating Action Button ===== */
.fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.fab:active {
    transform: scale(0.95);
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.9);
    backdrop-filter: blur(10px);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: rgba(59, 130, 246, 1);
    transform: translateY(-4px);
}

/* ===== Performance Optimizations ===== */
/* GPU Acceleration */
.gpu-accelerate {
    transform: translateZ(0);
    will-change: transform;
}

/* Lazy Load Placeholder */
.lazy-placeholder {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* ===== Dark Mode Support (Optional) ===== */
@media (prefers-color-scheme: dark) {
    .skeleton {
        background: linear-gradient(
            90deg,
            #2a2a2a 0%,
            #3a3a3a 50%,
            #2a2a2a 100%
        );
    }
}