/* Loading Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Animate elements on scroll */
.animate-on-scroll {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

.slide-up-on-scroll {
    opacity: 0;
    animation: slideUp 0.6s ease-out forwards;
}

/* Improved Touch Targets */
@media (max-width: 640px) {
    /* Navigation links */
    .nav-link {
        padding: 0.75rem 1rem;
        margin: 0.25rem 0;
    }

    /* Buttons */
    .btn {
        min-height: 44px;
        padding: 0.75rem 1.5rem;
    }

    /* Form inputs */
    input, select, textarea {
        min-height: 44px;
        padding: 0.75rem;
    }

    /* Card links */
    .card-link {
        padding: 1rem;
        margin: 0.5rem 0;
    }
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Smooth Transitions */
.smooth-transition {
    transition: all 0.3s ease-in-out;
}

/* Hover Effects */
.hover-scale {
    transition: transform 0.3s ease;
}

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

/* Interactive Elements */
.interactive {
    cursor: pointer;
    transition: all 0.3s ease;
}

.interactive:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.interactive:active {
    transform: translateY(0);
}

/* Loading Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Lazy Loading Images */
.lazy-image {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.lazy-image.loaded {
    opacity: 1;
}

/* Navigation Background */
.nav-background {
    background: #0f0f0f;  /* Dark color matching the image */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}