@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&display=swap');

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #e2e8f0;
    overflow-x: hidden;
}

.neon-border {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}

.neon-border::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #ec4899);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    animation: neonGlow 4s linear infinite;
}

@keyframes neonGlow {
    0% { opacity: 0.7; }
    50% { opacity: 1; }
    100% { opacity: 0.7; }
}

.glass-card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.data-flow {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0.3;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.3), transparent);
    animation: dataFlow 8s linear infinite;
}

@keyframes dataFlow {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 1rem;
    margin: 0.5rem;
    border-radius: 0.75rem;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 100;
}

.mobile-menu.active {
    transform: scaleY(1);
    opacity: 1;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}