.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background-color: transparent;
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    margin-left: 15px;
}

.btn-outline:hover {
    background-color: var(--primary);
    color: white;
}

.tab-btn {
    padding: 10px 25px;
    background-color: transparent;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: none;
    transition: all 0.3s ease;
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(67, 97, 238, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.tab-btn:hover::before {
    transform: translateX(100%);
}

.tab-btn.active {
    background-color: var(--primary);
    color: white;
}

.submit-btn {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    cursor: none;
    font-weight: 600;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.submit-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.submit-btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 1;
    }
    20% {
        transform: scale(25, 25);
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

.submit-btn:hover {
    background-color: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.2);
}