body { 
    font-family: 'Inter', sans-serif; 
    background-color: #070E25; 
    color: white; 
    overflow-x: hidden;
}
.gradient-btn { 
    background: linear-gradient(90deg, #007aff, #0058f0); 
    transition: all 0.3s ease;
}
.gradient-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 90, 255, 0.2);
}
.card-bg { 
    background: rgba(255, 255, 255, 0.06); 
    backdrop-filter: blur(16px); 
    border: 1px solid rgba(255,255,255,0.1); 
}
.mobile-menu {
    transform: translateX(100%);
    transition: transform 0.3s ease;
}
.mobile-menu.open {
    transform: translateX(0);
}
.hamburger-line {
    transition: all 0.3s ease;
}
.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}
.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}
.system-card {
    transition: all 0.3s ease;
    cursor: pointer;
}
.system-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}