.tabs-container {
    max-width: 600px;
    margin: 50px auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

.tab-header {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #eee;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    transition: 0.3s;
}

.tab-btn.active {
    color: #4a90e2;
    border-bottom: 3px solid #4a90e2;
}

.tab-content {
    display: none; /* Hidden by default */
    padding: 25px;
    animation: fadeIn 0.4s ease-in-out;
}

.tab-content.active {
    display: block; /* Shown when active */
}

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