/* Button chung */
.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

/* Nút Đăng nhập */
.btn-login-primary {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    border: none;
}

    .btn-login-primary:hover {
        background: linear-gradient(135deg, #1d4ed8, #60a5fa);
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
        color: white;
        text-decoration: none;
    }

/* Nút Đăng ký */
.btn-register {
    background: transparent;
    color: #38bdf8;
    border: 2px solid #49ff00;
}

    .btn-register:hover {
        background: #38bdf8;
        color: #0f172a;
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(56, 189, 248, 0.4);
        text-decoration: none;
    }