.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(2, 132, 199, 0.25);
    box-shadow: 0 10px 30px rgba(2, 132, 199, 0.06);
}

.btn-premium {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff !important;
    border: none;
    padding: 0.8rem 1.8rem;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.2);
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(2, 132, 199, 0.35);
    filter: brightness(1.05);
}

.btn-premium-outline {
    background: transparent;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color);
    padding: 0.8rem 1.8rem;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-premium-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color) !important;
    background: rgba(2, 132, 199, 0.04);
    transform: translateY(-2px);
}

.tab-content {
    display: none;
    opacity: 0;
    transition: opacity 0.35s ease-in-out;
}

.tab-content.active {
    display: block;
    opacity: 1;
}

@keyframes fadeInContent {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content.active {
    animation: fadeInContent 0.4s ease-out forwards;
}

@media (min-width: 576px) {
    .glass-card {
        padding: 2.2rem;
        border-radius: 16px;
    }
}