body, html {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

body {
    background-color: #0a0a0a;
    color: #e5e5e5;
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #0a0a0a;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff0000;
}

.gradient-text {
    background: linear-gradient(135deg, #ff0000 0, #fff 50%, #00d9ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: 8s linear infinite shimmer;
}

.glass-card {
    background: rgba(20, 20, 20, .7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 4px 24px rgba(0, 0, 0, .2);
}

.glass-nav {
    background: rgba(10, 10, 10, .85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}

.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.primary-btn {
    background-color: #ff0000;
    color: #fff;
    transition: .3s;
}

.primary-btn:hover {
    background-color: #cc0000;
    box-shadow: 0 0 20px rgba(255, 0, 0, .3);
    transform: translateY(-2px);
}

.tariff-tab-active {
    background-color: rgba(255, 0, 0, .15);
    color: #ff0000;
    border-color: #ff0000;
    font-weight: 700;
}