/* Animation keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Animated elements */
.animate-fade-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in {
    animation: slideInRight 0.6s ease-out;
}

/* Staggered animations for feature cards */
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* Interactive elements */
.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

/* Enhanced buttons */
.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover::after {
    left: 100%;
}

/* Pricing card hover effects */
.pricing-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

/* Enhanced navigation */
.nav-links a {
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Scroll progress indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    z-index: 1000;
    transition: width 0.1s ease;
}

/* Modern form elements */
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
}

/* Floating labels */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group label {
    position: absolute;
    top: 0;
    left: 1rem;
    transform: translateY(-50%);
    background: white;
    padding: 0 0.5rem;
    color: #6b7280;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.form-group input:focus + label,
.form-group textarea:focus + label {
    color: var(--primary-color);
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(0);
}

/* Loading indicators */
.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid #f3f4f6;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive improvements */
@media (max-width: 768px) {
    .mobile-menu-button {
        display: block;
        position: relative;
        z-index: 100;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: white;
        padding: 6rem 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links a {
        display: block;
        margin: 1.5rem 0;
    }
}

/* Dark mode support - controlled by .dark class */
.dark .feature-card,
.dark .pricing-card {
    background: #1f2937;
    border-color: #374151;
}

.dark .form-group label {
    background: #111827;
}