*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

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

@keyframes scrollLine {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100%);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-scroll-line {
    animation: scrollLine 1.5s ease-in-out infinite;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation scroll state */
nav.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(107, 33, 168, 0.08);
}

nav.scrolled .menu-line {
    background: #6b21a8;
}

/* Mobile menu */
#mobile-menu.open {
    transform: translateX(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #faf5ff;
}

::-webkit-scrollbar-thumb {
    background: #d8b4fe;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a855f7;
}

/* Selection */
::selection {
    background: #fbbf24;
    color: #3b0f63;
}

/* Form focus styles */
input:focus,
textarea:focus {
    border-color: #f59e0b !important;
}

input:focus::placeholder,
textarea:focus::placeholder {
    color: transparent;
}

/* Smooth image loading */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Print styles */
@media print {
    nav, #mobile-menu, .animate-scroll-line {
        display: none !important;
    }
    body {
        color: #000;
        background: #fff;
    }
}