html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-500 { animation-delay: 0.5s; }

.icon-active line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.icon-active line:nth-child(2) {
    opacity: 0;
}

.icon-active line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

#menu-icon line {
    transition: all 0.3s ease;
    transform-origin: center;
}